Method of injector coating for polymer electroluminescent diodes

FIELD: chemistry.

SUBSTANCE: there is disclosed method of injector polyaniline coating on the surface of transparent conductive oxide or metal layer on transparent substrate for the polymer electroluminescent diode, characterised that polyaniline coating is ensured with electrochemical synthesis of polyaniline from aniline solution being in contact with transparent conductive oxide or metal layer. Invention prevents softening ensured by prevented current spreading along the polyaniline layer, as well as by simplified procedure of polyaniline coating; homogeneous coating of easily controlled thickness; polyaniline coating of high continuity without through holes; with required pixel array addressing without additional polymer layers of reduced conductivity.

EFFECT: simplified and cheap making polymeric electroluminescent diodes.

10 cl, 2 dwg

 

The present invention relates to the field of electroluminescent diodes, and in particular to a method of applying an injecting layer on the surface of the layer of transparent conductive oxide or metal, placed on a transparent substrate, a polymer electroluminescent diode.

The level of technology

Electroluminescent diodes based on organic materials have significant advantages relative to conventional electroluminescent device of inorganic nature. Compared to last they are characterized by ease of fabrication techniques, low working voltages, a wide spectrum of electroluminescence and the possibility of making electroluminescent devices of large area.

One of the most promising areas of creating organic electroluminescent diodes is to develop a multilayer polymeric electroluminescent diodes (PLD), in which polymer layers based on conjugated polymers are used as an injecting conductive, insulating and light-emitting components [J..Burroughs, D.D..Bradley, A.R.Brown, R.N.Marks, Klaskow, R..Friend, P.L.Burns, and A.B.Holmes, Nature, 347, p.539 (1990); D.Braun and A.J.Heeger, Appl. Phys. Lett., 58, p.1982 (1991); U.S. patent№№5247190, 5408109, 5869350].

One of the most important components of the LEDs based on conducting polymers (PELD) is injecters the second polymer layer with p-type conductivity, sufficient to ensure efficient operation of the entire device. Using an injecting polymer layer deposited on the surface of transparent conductive layer degenerate inorganic oxide type ITO, due to the need to improve resource characteristics PALD. Thus, in U.S. patent No. 5723873 to increase the quantum yield of luminescence and reduce the operating voltage used polyaniline in the form of a salt emeraldine. Further development of this approach has been in U.S. patent No. 5798170, which describes the use of polyaniline and its mixtures with other polymers as an intermediate layer between the conductive oxide layer on the basis of ITO and polymer light-emitting layer, leading to a significant increase in temporary work resource led. Application of polyaniline as an injecting layer described in Japanese patent application JP2000-133459.

The choice of this polymer due to its good injection properties, i.e. the corresponding work function (~4.8 eV, depending on the production method, composition, and oxidation state), good adhesion to the substrate on the basis of conductive metal oxides, high chemical resistance to environmental influences and cheapness. As a rule, application of polyaniline is produced from a solution by the method of irrigation in the centrifuge. When the use of conventional polyaniline, obtained by the method of chemical synthesis [A. MacDiarmid, J. Chiang, A. Richter, N. Somarisi in Conducting Polymers, ed. by L. Santiago, D. Reidel Publishing, N.Y., 1987, p.105], to give him solubility in organic solvents often used camphorsulfonic acid, belonging to the category of so-called secondary dopants, and polar solvents such as cresol, N-methylpyrrolidone and others [J.C.Scott, S.Carter, S.Karg and M.Angeloupolos, Synth. Met., 85 (1997) p.1197]. While there is an increase in resource characteristics BALD due to the decreasing contribution of the destructive oxidative processes and electrical breakdowns observed when using as an injecting layer ITO. However, the disadvantage of using the composition polyaniline-camphorsulfonic acid, is the fact that the procedure of applying a layer of polyaniline and subsequent conditioning of this layer to remove residues of harmful high-boiling solvent is long and complicated. It should be noted also that in the process of forming layers of polyaniline by watering it chemically prepared solution can be formed through holes from the surface layer of polyaniline to the surface layer of a conductive oxide. Therefore, for forming a continuous an injecting layer, it is necessary to use relatively thick layers of polyaniline (~several hundreds to thousands of angstroms), when the result in increased operating voltage PAID. The consequence of this is the rise and the increasing complexity of technology PALD. At the same time, the use of more subtle polianilinovyh layers leads to loss of continuity and education polyaniline layer through-hole, through which a significant part of the current [R.C.Advincula, W.Knoll, C.W.Frank, D.Roitman, R.Moon, J.Sheats, MRS Proceedings, Fall 1997, Symp.J.: Electrical, Optical, Magnetic Properties of Organic Solid-State Materials]. This leads to non-uniform distribution of current passing through polyanilines layer, resulting in decreased uniformity of illumination of the surface of the led and worsen its resource characteristics. To overcome this drawback, it was proposed to use a heterostructure consisting of sequentially deposited layers of conventional polyaniline and sulfated polyaniline [G.Decher, Y.Lvov, J.Schmitt, Thin Solid Films, 244 (1994) 772]. In another case, to overcome these disadvantages it is proposed to use a multilayer structure composed of layers of polyaniline and polyelectrolytes of different nature [..Advincula, W.Knoll, C.W.Frank, D.Rotman, R.Moon, J.Sheats, MRS Proceedings, Fall 1997, Symp. J.: Electrical, Optical, Magnetic Properties of Organic Solid-State Materials]. The disadvantage of polymer LEDs of this kind is a multi-stage procedure of applying an injecting layer based on polyaniline, which significantly increases the time and cost expenses on its formation and Affairs of the et process of forming PAID less technological.

In addition, the common disadvantage of the above methods of forming an injecting layer based on polyaniline is the inability to prevent flow of currents along the layer of polyaniline as a layer of polyaniline in the form of a salt emeraldine has a sufficiently high lateral conductivity and cross-currents between the individual pixels lead to blurring of the image. To prevent this phenomenon was proposed as an injecting layer in contact with a layer of optically transparent conductive oxide (ITO), use layers of blends of polyaniline with optically transparent non-conductive polymers, such as polyacrylamide, polyacrylic acid, polyvinylpyrrolidone, copolymers of acrylamide, cellulose derivatives, polyethylene glycols and other, of a thickness of from 500 to 5000, in contact on one side with a layer of conductive oxide, and on the other hand - with more than a thin layer of conductive polyaniline thickness of from 2 to 400 [publication of the patent application U.S. No. 20050184306]. However, it is clear that this solution not fundamentally solve the problem of cross-currents, but only reduces their value and complicates the manufacturing technology devices. Even the use of active matrix thin-film transistor (TFT) (such as that used, for example, in U.S. patent No. 5550066 or patentese No. 6351078) to control individual pixels does not solve this problem completely in the case of using a solid injects a layer of polyaniline (pan), covering the entire surface of the TFT-matrix.

Disclosure of inventions

The invention aims at eliminating the drawbacks of the existing methods of forming an injecting layer of polyaniline polymer electroluminescent diodes. The invention solves the following problems: 1) simplification of the procedure of applying a layer of polyaniline; 2) applying a uniform layer is easily controlled thickness; 3) applying a layer of polyaniline with a high degree of continuity without through holes; 4) providing the necessary addressing, applying a layer of polyaniline in the pixel matrix without the use of additional polymer layer with low conductivity; 5) simplification and reduction procedures for the fabrication of polymeric electroluminescent diodes.

The above problems are solved by a method of applying an injecting layer of polyaniline according to the present invention.

In the present invention, a method for applying an injecting layer of polyaniline on the surface of the layer of transparent conductive oxide or metal on a transparent substrate for polymer electroluminescent diode, wherein for applying a layer of polyaniline using electrochemical synthesis of polyaniline from a solution of aniline in contact with a layer of transparent conductive oxide or metal.

Predpochtite the flax electrochemical synthesis of conducting polyaniline in aqueous solution of aniline, containing low molecular weight or polymeric acids of different structures.

Preferably the electrochemical synthesis of conducting polyaniline in the range of pH 0-3.

Preferably when the electrochemical synthesis of polyaniline using potentiostatic mode when the potential of the layer of transparent conductive oxide or metal in the range from 0.55 to 0.85 In a relatively saturated silver chloride electrode.

Preferably when the electrochemical synthesis of polyaniline use galvanostatically mode in the range of current densities from 0.5 to 10 mA/cm2.

Preferably when the electrochemical synthesis of polyaniline using the Cycling potential in the range of potentials between-0.2 to +0.8 V relative to a saturated silver chloride electrode.

Preferably, the concentration of aniline in a solution of aniline is in the range of from 0.001 to 0.5 M.

Preferably the temperature of the solution of aniline in the electrochemical synthesis of polyaniline support in the interval from 0 to 30°C.

Preferably the thickness of the thus obtained layer of polyaniline is in the range from 5 to 30 nm.

Preferably the electrochemical synthesis of polyaniline is performed on the pixel matrix, thin-film transistors, which are chemically stable in the electrolyte solution and in which the cover ka is the Treaty of pixels electrochemically stable in the electrolyte solution by anodic polarization up to a potential of 0.8 V relative to silver chloride electrode.

Thus, the above problems are solved through the use of different variants of the method for electrochemical synthesis of polyaniline in the presence of various components on the surface of thin layers of conductive oxides or deposited metals with high work function (≥4.7 eV).

Electrochemical synthesis of polyaniline has a number of advantages compared with chemical synthesis. First and foremost, education is more pure product, free from impurity content of the oxidant. Secondly, in the case of electrochemical deposition to easily control the thickness of the applied layer, because you can use different physical methods (e.g., spectroscopy, chronocoulometric etc) directly during the deposition of the layer.

Usually electropolymerization of aniline is carried out on the anode in the 0.1-2.0 M aqueous solutions of inorganic acids in potentiostatic mode, galvanostatically mode and in the mode of Cycling potential. Values of a given capacity range from 0.6 to 1.2 In, and scanned the potential between-0.2-0.7-1.2 V relative to the saturated calomel electrode (NEC). I think that the Cycling of the potential leads to a more homogeneous product, which is confirmed by the results of scanning electron microscopy. Most often and what is the scan speed between 10 and 100 mV/S. During the synthesis in galvanostatically mode, the current value does not exceed 10 mA/cm2.

To prepare the electrolyte solution as solvents are water, polar solvents or mixtures thereof with water. As polar solvents can be used acetonitrile, dimethylacetamide, sulfolane, dimethylsulfoxide, geksaftorpropena and other Most preferred is the use of aqueous solvents and synthesis of polyaniline in aqueous solutions. When carrying out the synthesis in potentiostatic mode, the electrode potential, which is electrochemical synthesis, should be preferably in the range from +0.55 to +0.8 V relative to a saturated silver chloride electrode. When carrying out the synthesis in galvanostatically mode, the current density at the working electrode should preferably be in the range from 0.5 to 5.0 mA/cm2.

In combination with TFT active-matrix method of electrochemical deposition allows to minimize cross-talk effects in POD. Namely, it becomes possible to besiege layer of polyaniline (pan) directly for each isolated pixel TFT-matrix without the formation of a solid layer of polymer over the entire surface of the matrix.

Brief description of drawings

Figure 1 is a schematic view, illustri the existing process of forming a layer of polyaniline on TFT-matrix.

Figure 2 is a schematic view illustrating the finished device on the basis of electroluminescent diodes containing an injecting layer of polyaniline on TFT-matrix, applied using the proposed invention method.

Detailed description of the invention

The process of forming an injecting layer of polyaniline on TFT-matrix is schematically represented in figure 1. TFT-matrix (positions 1-7) is brought into contact with a solution of 9 electrolyte containing aniline, and apply the same positive potential to all of the anode electrodes 7 pixels of this matrix. At the same time as the counter-electrode 10 using platinum foil. As a result, the layer pan 8 will grow only on the surface of the pixels that remain isolated from each other.

The only limitation of this method is that used TFT-matrix must be chemically stable in the electrolyte solution, and the coating of each of the pixels should be electrochemically stable in the electrolyte solution by anodic polarization up to a potential of 0.8 V relative to silver chloride electrode.

After removing TFT-matrix with a deposited layer pan 8 of the electrolyte solution, washing and drying of this layer is applied polymer electroluminescent layer 11 (2), ispolzueyomoj of the known methods of irrigation, or low molecular weight electroluminescent layer by vacuum deposition, and put a metal cathode 12 by vacuum deposition.

In addition to the above-mentioned advantages of LEDs with an injecting layer based TFT-matrix will allow the independent addressing of randomly selected pixels of the led device.

Examples

Example 1

Electroluminescent multilayer sample was prepared in several stages. Electrochemical synthesis of polyaniline (pan) was performed in an aqueous solution containing 0.01 M aniline and 0.02 M of poly(2-acrylamide-2-methyl-1-propane-sulfonic acid) (PAMPS), in potentiostatic mode, when the anode potential of 0.75 In a relatively saturated silver chloride electrode (HSA). The concentration of PAMPS counted on one Monomeric link polyacid. Pan besieged at room temperature in a matrix of glass electrodes with a transparent conductive layer In2O3/SnO2(ITO) (Balzers or Donally Corp.) with a surface resistance of from 16 to 20 Ohms/square, which served as the anode. For switching of the electrodes with a source of electrical voltage used a matrix of thin-film transistors. Before deposition pan on a conductive substrate In2O3/SnO2the latter was subjected to a thorough cleaning in the ultrasonic bath in denim solution of detergent, a mixture of isopropanol/deionized water (volume 1:1), toluene, acetone and deionized water. In the last step of cleaning the surface of In2O3/SnO2he was subjected to oxygen plasma. After deposition of pan working surface repeatedly washed with 1.0 M hydrochloric acid and deionized water. Next layer the pan was dried in vacuum for 12 h at 60°C. the thickness of the layers of the pan in a dry condition was 15±5 nm. Determination of thickness of layers (thin films) pan held interferometrically, as well as to control the amount of charge consumed for the synthesis and optical density. Then the irrigation method from a solution in chloroform in a centrifuge at a speed of from 1000 to 2500 rpm on the surface layer of the pan put the electroluminescent layer of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] (Aldrich). The sample was dried in vacuum for 12 h at 60°C. Next, on the surface of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] by the method of thermal vacuum evaporation at a vacuum of 5·10-6Torr sequentially applied layers of calcium and aluminum, which later served as the cathode. The total thickness of the metal cathode was 80-120 nm. The area of each light-emitting device was 10 mm2. The brightness with which ecene 900 CD/m 2at a potential of 10 V and a current of 0.1 mA/cm2.

Example 2

Electroluminescent multilayer sample was prepared in several stages. Electrochemical synthesis of polyaniline (pan) was performed in an aqueous solution containing 0.01 M aniline and 0.01 M poly-p,p'-(2,2'-disulfonate)-diphenylacetamide (PAS), in potentiostatic mode, when the anode potential of 0.75 In a relatively saturated silver chloride electrode (HSA). Concentration-PAS counted on one Monomeric link polyacid. Pan besieged at room temperature on the matrix glass electrodes with a transparent conductive layer In2About3/SnO2(ITO) (Balzers or Donally Corp.) with a surface resistance of from 16 to 20 Ohms/square, which served as the anode. For switching of the electrodes with a source of electrical voltage used a matrix of thin-film transistors. Before deposition pan on a conductive substrate In2About3/SnO2the latter was subjected to a thorough cleaning in an ULTRASONIC bath with an aqueous solution of a detergent, a mixture of isopropanol/deionized water (volume 1:1), toluene, acetone and deionized water. In the last step of cleaning the surface of In2About3/SnO2he was subjected to oxygen plasma. After deposition of pan working surface repeatedly washed with 1.0 M hydrochloric acid and de is oneiromancy water. Next layer the pan was dried in vacuum for 12 h at 60°C. the thickness of the layers of the pan in a dry condition was 15±5 nm. Determination of thickness of layers pan held interferometrically, as well as to control the amount of charge consumed for the synthesis and optical density. Then the irrigation method from a solution in chloroform in a centrifuge at a speed of from 1000 to 2500 rpm on the surface layer of the pan put the electroluminescent layer of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] (Aldrich). The sample was dried in vacuum for 12 h at 60°C. Next, on the surface of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] by the method of thermal vacuum evaporation at a vacuum of 5·10-6Torr sequentially applied layers of calcium and aluminum, which later served as the cathode. The total thickness of the metal cathode was 80-120 nm. The area of each light-emitting device was 10 mm2. The brightness was 400 CD/m2at a potential of 10 V and a current of 0.15 mA/cm2.

Example 3

Electroluminescent multilayer sample was prepared in several stages. Electrochemical synthesis of polyaniline (pan) was performed in an aqueous solution containing 0.01 M aniline and 0.01 M poly-p,p'-(2,2'-disulfonate)-diferentiated (t-PAS)in potential the static mode, when the anode potential of 0.75 In a relatively saturated silver chloride electrode (HSA). The concentration of t-PAS counted on one Monomeric link polyacid. Pan besieged at room temperature in a matrix of glass electrodes with a transparent conductive layer In2O3/SnO2(ITO) (Balzers or Donally Corp.) with a surface resistance of from 16 to 20 Ohms/square, which served as the anode. For switching of the electrodes with a source of electrical voltage used a matrix of thin-film transistors. Before deposition pan on a conductive substrate In2O3/SnO2the latter was subjected to a thorough cleaning in an ULTRASONIC bath with an aqueous solution of a detergent, a mixture of isopropanol/deionized water (volume 1:1), toluene, acetone and deionized water. In the last step of cleaning the surface of In2About3/SnO2he was subjected to oxygen plasma. After deposition of pan working surface repeatedly washed with 1.0 M hydrochloric acid and deionized water. Next layer the pan was dried in vacuum for 12 h at 60°C. the thickness of the layers of the pan in a dry condition was 15±5 nm. Determination of thickness of layers pan held interferometrically, as well as to control the amount of charge consumed for the synthesis and optical density. Then the irrigation method from a solution in chloroform in a centrifuge at a speed of from 1000 to 2500 rpm on the surface layer of the pan on which osili electroluminescent layer poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] (Aldrich). The sample was dried in vacuum for 12 h at 60°C. Next, on the surface of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] by the method of thermal vacuum evaporation at a vacuum of 5·10-6Torr sequentially applied layers of calcium and aluminum, which later served as the cathode. The total thickness of the metal cathode was 80-120 nm. The area of each light-emitting device was 10 mm2. The brightness was 550 CD/m2at a potential of 10 V and a current of 0.12 mA/cm2.

Example 4

Electroluminescent multilayer sample was prepared in several stages. Electrochemical synthesis of polyaniline (pan) was performed in an aqueous solution containing 0.01 M aniline and 0.005 M poly-p,p'-(2,2'-disulfonate)-diphenyldisilane-co-p,p'-(2,2'-disulfonate)-diferentiated (PAS), in potentiostatic mode, when the anode potential of 0.75 In a relatively saturated silver chloride electrode (HSA). The concentration of co-PASK counted on one Monomeric link polyacid. Pan besieged at room temperature on the matrix glass electrodes with a transparent conductive layer In2O3/SnO2(ITO) (Balzers or Donally Corp.) with a surface resistance of from 16 to 20 Ohms/square, which served as the anode. For switching of the electrodes with a source of electrical energy is ical voltage used a matrix of thin-film transistors. Before deposition pan on a conductive substrate In2O3/SnO2the latter was subjected to a thorough cleaning in an ULTRASONIC bath with an aqueous solution of a detergent, a mixture of isopropanol/deionized water (volume 1:1), toluene, acetone and deionized water. In the last step of cleaning the surface of In2About3/SnO2he was subjected to oxygen plasma. After deposition of pan working surface repeatedly washed with 1.0 M hydrochloric acid and deionized water. Next layer the pan was dried in vacuum for 12 h at 60°C. the thickness of the layers of the pan in a dry condition was 15±5 nm. Determination of thickness of layers pan held interferometrically, as well as to control the amount of charge consumed for the synthesis and optical density. Then the irrigation method from a solution in chloroform in a centrifuge at a speed of from 1000 to 2500 rpm on the surface layer of the pan put the electroluminescent layer of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] (Aldrich). The sample was dried in vacuum for 12 h at 60°C. Next, on the surface of poly[(p-phenylenevinylene)-viola(2-methoxy-5-(2-ethylhexoxy)-p-phenylenevinylene] by the method of thermal vacuum evaporation at a vacuum of 5·10-6Torr sequentially applied layers of calcium and aluminum, which later served as the cathode is m The total thickness of the metal cathode was 80-120 nm. The area of each light-emitting device was 10 mm2. The brightness was 350 CD/m2at a potential of 10 V and a current of 0.09 mA/cm2.

The reference list of items

1 - substrate;

2 - electrode "shutter";

3 - semiconductor;

4 - electrode "source";

5 - electrode "runoff";

6 is an insulating layer;

7 - anode (ITO);

8 - layer of polyaniline;

9 - electrolyte solution;

10 - the counter-electrode (Pt);

11 - electroluminescent layer;

12 - cathode (CA or Mg).

1. The method of applying an injecting layer of polyaniline on the surface of the layer of transparent conductive oxide or metal on a transparent substrate for polymer electroluminescent diode, wherein for applying a layer of polyaniline using electrochemical synthesis of polyaniline from a solution of aniline in contact with a layer of transparent conductive oxide or metal, which is a matrix of individual pixels on the substrate, switching them with a source of electric voltage is carried out using a matrix of thin-film transistors.

2. The method according to claim 1, characterized in that the electrochemical synthesis of conducting polyaniline in aqueous solution of aniline containing low molecular weight or polymeric acid different build is.

3. The method according to claim 2, characterized in that the electrochemical synthesis of conducting polyaniline in the range of pH 0-3.

4. The method according to claim 3, characterized in that the electrochemical synthesis of polyaniline using potentiostatic mode when the potential of the layer of transparent conductive oxide or metal in the range from 0.55 to 0.85 In a relatively saturated silver chloride electrode.

5. The method according to claim 3, characterized in that the electrochemical synthesis of polyaniline use galvanostatically mode in the range of current densities from 0.5 to 10 mA/cm2.

6. The method according to claim 3, characterized in that the electrochemical synthesis of polyaniline using the Cycling potential in the range of potentials between-0.2 to +0.8 V relative to a saturated silver chloride electrode.

7. The method according to claim 1, characterized in that the concentration of aniline in a solution of aniline is in the range of from 0.001 to 0.5 M.

8. The method according to claim 1, characterized in that the temperature of the solution of aniline in the electrochemical synthesis of polyaniline support in the interval from 0 to 30°C.

9. The method according to claim 1, characterized in that the thickness of the thus obtained layer of polyaniline is in the range from 5 to 30 nm.

10. The method according to any one of claims 1 to 9, characterized in that the electrochemical synthesis of polyaniline is performed on the pixel matrix, thin-film transistor is in, which is chemically stable in the electrolyte solution in which the coating of each of the pixels electrochemically stable in the electrolyte solution by anodic polarization up to a potential of 0.8 V relative to silver chloride electrode.



 

Same patents:

FIELD: organic semiconductors.

SUBSTANCE: embossing or laminating film has at least one circuit component manufactured by using organic semiconductor technology, for instance one or more organic field-effect transistors; circuit component has several layers including electric functional layers with at least one organic semiconductor layer, at least one insulating layer, and electricity conductive layers. One or more layers of circuit component are made by way of thermal or ultraviolet replication including spatial structuring, part of at least one electric functional layer in spatial structuring region being fully separated.

EFFECT: improved circuit component production process using organic semiconductor technology.

28 cl, 9 dwg

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to novel derivatives of fullerenes comprising organic amines and hydrogen atoms bound to fullerene-C60 molecule by 6,6-double bonds of the general formula: C60Hn(R1R2N)n wherein R1 means -C6H5CH2; R2 means -C6H5CH2; n = 4 (tetra-(dibenzylaminohydro)[60]fullerene); R1 means -C5H9; R2 means hydrogen atom (H); n = 3 (tri-(cyclopentylaminohydro)[60]fullerene). Also, invention relates to using derivatives of fullerenes, in particular, (tetra-(benzylaminohydro)[60]fullerene, (tetra-(dibenzylaminohydro)[60]fullerene, tri-(cyclopentylaminohydro)[60]fullerene, 2-(azahomo[60]fullereno)-5-nitropyrimidine, 1,3-dipropyl-5-[5'-(azahomo[60]fullereno)pentyl]-1,3,5-triazin-2,4,6(1H,3H,5H)-trione, O,O-dibutyl-(azahomo[60]fullereno)phosphate as acceptors of electrons in composites polymer/fullerene designated for photovoltaic cells. Also, invention relates to photovoltaic device comprising mixture of poly-conjugated polymer and abovementioned fullerene derivative or their mixture as an active layer. Also, invention relates to a method for synthesis of derivatives of fullerenes comprising aromatic amines and hydrogen atoms bound to fullerene-C60 molecule by 6,6-double bonds. Method involves interaction of C60 with the corresponding organic amine in solution, and this reaction is carried out in aromatic solvent medium in amine excess at temperature 25-70°C for 2-5 days followed by evaporation of solution and precipitation of the end product by addition of alcohol.

EFFECT: improved method of synthesis.

6 cl, 1 tbl, 2 dwg, 6 ex

The invention relates to securities with protective elements as a base, made of paper and is provided with at least one integrated circuit

The invention relates to the field of electronic equipment, in particular to the design and technology of manufacturing the field-effect transistor with an insulated gate, and can be used to power industrial electronics and electrical engineering in the production of instruments of control currents of large magnitude

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to novel derivatives of fullerenes comprising organic amines and hydrogen atoms bound to fullerene-C60 molecule by 6,6-double bonds of the general formula: C60Hn(R1R2N)n wherein R1 means -C6H5CH2; R2 means -C6H5CH2; n = 4 (tetra-(dibenzylaminohydro)[60]fullerene); R1 means -C5H9; R2 means hydrogen atom (H); n = 3 (tri-(cyclopentylaminohydro)[60]fullerene). Also, invention relates to using derivatives of fullerenes, in particular, (tetra-(benzylaminohydro)[60]fullerene, (tetra-(dibenzylaminohydro)[60]fullerene, tri-(cyclopentylaminohydro)[60]fullerene, 2-(azahomo[60]fullereno)-5-nitropyrimidine, 1,3-dipropyl-5-[5'-(azahomo[60]fullereno)pentyl]-1,3,5-triazin-2,4,6(1H,3H,5H)-trione, O,O-dibutyl-(azahomo[60]fullereno)phosphate as acceptors of electrons in composites polymer/fullerene designated for photovoltaic cells. Also, invention relates to photovoltaic device comprising mixture of poly-conjugated polymer and abovementioned fullerene derivative or their mixture as an active layer. Also, invention relates to a method for synthesis of derivatives of fullerenes comprising aromatic amines and hydrogen atoms bound to fullerene-C60 molecule by 6,6-double bonds. Method involves interaction of C60 with the corresponding organic amine in solution, and this reaction is carried out in aromatic solvent medium in amine excess at temperature 25-70°C for 2-5 days followed by evaporation of solution and precipitation of the end product by addition of alcohol.

EFFECT: improved method of synthesis.

6 cl, 1 tbl, 2 dwg, 6 ex

FIELD: organic semiconductors.

SUBSTANCE: embossing or laminating film has at least one circuit component manufactured by using organic semiconductor technology, for instance one or more organic field-effect transistors; circuit component has several layers including electric functional layers with at least one organic semiconductor layer, at least one insulating layer, and electricity conductive layers. One or more layers of circuit component are made by way of thermal or ultraviolet replication including spatial structuring, part of at least one electric functional layer in spatial structuring region being fully separated.

EFFECT: improved circuit component production process using organic semiconductor technology.

28 cl, 9 dwg

FIELD: chemistry.

SUBSTANCE: there is disclosed method of injector polyaniline coating on the surface of transparent conductive oxide or metal layer on transparent substrate for the polymer electroluminescent diode, characterised that polyaniline coating is ensured with electrochemical synthesis of polyaniline from aniline solution being in contact with transparent conductive oxide or metal layer. Invention prevents softening ensured by prevented current spreading along the polyaniline layer, as well as by simplified procedure of polyaniline coating; homogeneous coating of easily controlled thickness; polyaniline coating of high continuity without through holes; with required pixel array addressing without additional polymer layers of reduced conductivity.

EFFECT: simplified and cheap making polymeric electroluminescent diodes.

10 cl, 2 dwg

FIELD: physics.

SUBSTANCE: organic light-emitting diode contains the bearing bottom executed in the form of glass or plastic layer with the anode transparent layer disposed on it. The layer of organic substance with hole conductivity (the hole-transport layer) is located on the anode, then the organic radiating (emission) layer, organic layer with n-type conduction (an electro-transport layer) follow. The emission layer can simultaneously carry out function of an electro-transport stratum. Over organic layers the cathode stratum is located. The cathode is executed from the composite material containing ytterbium, doped by thulium or europium in amount of not less than 10%. The device is characterised by high technical characteristics: the insert voltage makes 4 V, a running voltage at luminosity 150 cd/m2, that there corresponds to quantity of the working monitor, 4 V, efficiency of a luminescence - 2 lm/W. At the mentioned running voltage luminosity slope on 10% makes not less than 4000 hours.

EFFECT: expansion of a circle of substances for emission layer, capable to generate all basic and intermediate colours.

4 cl, 1 tbl, 1 dwg

FIELD: physics.

SUBSTANCE: in receiver of optical radiation comprising at least one heterostructure located on transparent substrate and enclosed between two light-transmitting anode and cathode electrodes and consisting of two layers of organic semi-conducting materials with different width of prohibited zone, layers of heterostructure are made of materials with maximums of absorption spectrums located in area λ≤450 nm and high light transmission in visible area of spectrum, at that light transmission of incident flux of radiation from receiver of optical radiation in visible area of spectrum makes at least 30%.

EFFECT: creation of optical radiation receiver transparent in visible area of spectrum.

3 cl, 5 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to new chemical compounds, particularly to complexes of scandium with heterocyclic ligands tris[2-(1,3-benzox(ti/imid)azol-2-yl)phenolate-O,N]scandium of general formula , where X - is oxygen, or sulphur, or NH, which can be used as an electroluminescent (emission) layer in organic light-emitting diodes (OLED). Invented also is an organic light-emitting diode, in which the emission layer is made from tris[2-(1,3-benzoxazol-2-yl)phenolate-O,N]scandium.

EFFECT: obtaining new chemical compounds which can be used as electroluminescent (emission) layer in organic light-emitting diodes (OLED).

6 cl, 3 ex

FIELD: physics; optics.

SUBSTANCE: invention relates to organic displays. The organic electroluminescent display has an organic electroluminescent device which has first and second display electrodes and at least one organic functional layer between the display electrodes and consisting of an organic compound; a base for holding the organic electroluminescent device; a film of a high-molecular compound which covers the organic electroluminescent device and the surface of the base along the perimetre of the organic electroluminescent device; and in inorganic barrier film which covers the high-molecular compound film, edges of the high-molecular compound film and the surface of the base along the perimetre of the high-molecular compound film; the high-molecular compound film used is a film made from aliphatic polyurea.

EFFECT: design of an organic electroluminescent display which is not dyed and is shock resistant.

6 cl, 2 dwg, 2 ex, 2 tbl

FIELD: chemistry.

SUBSTANCE: invention can be used in manufacturing organic light-emitting diodes, liquid-crystal displays, plasma display panel, thin-film solar cell and other electronic and semi-conductor devices. Claimed is element, including target of ionic dispersion, where said target includes processed MoO2 plate of high purity. Method of such plate manufacturing includes isostatic pressing of component consisting of more than 99% of stoichiometric MoO2 powder into workpiece, sintering of said workpiece under conditions of supporting more than 99% of MoO2 stoichiometry and formation of plate which includes more than 99% of stoichiometric MoO2. In other version of said plate manufacturing component, consisting of powder, which contains more than 99% of stoichiometric MoO2, is processed under conditions of hot pressing with formation of plate. Method of thin film manufacturing includes stages of sputtering of plate, which contains more than 99% of stoichiometric MoO2, removal of MoO2 molecules from plate and application of MoO2 molecules on substrate. Also claimed is MoO2 powder and method of said plate sputtering with application of magnetron sputtering, pulse laser sputtering, ionic-beam sputtering, triode sputtering and their combination.

EFFECT: invention allows to increase work of output of electron of ionic sputtering target material in organic light-emitting diodes.

16 cl, 5 ex

FIELD: chemistry.

SUBSTANCE: invention relates to macromolecular compounds with a nucleus-shell structure. The invention discloses macromolecular compounds with a nucleus-shell structure, whereby the nucleus has a macromolecular dendritic and hyperbranched structure based on carbon or based on silicon and carbon is bonded to at least three, in particular at least six external atoms through a carbon-based coupling chain (V) which is selected from a group consisting of straight and branched alkylene chains with 2-20 carbon atoms, straight or branched polyoxyalkylene chains, straight or branched siloxane chains or straight or branched carbosilane chains, with straight chains based on carbon oligomeric chains (L) with conjugated double bonds on the entire length. Conjugated chains (L) in each separate case are bonded at the end opposite the coupling chain (V) to one more, specifically, aliphatic, arylaliphatic or oxyaliphatic chain (R) without conjugated double bonds. The chains (V), (L) and (R) form the shell. The invention also discloses a method for synthesis of the said compounds.

EFFECT: novel organic compounds which can be synthesised using conventional solvents and have good semiconductor properties.

16 cl, 2 ex

FIELD: physics.

SUBSTANCE: invention relates to multilayer organic light-emitting diodes (OLED) and can be used in designing alternative sources of light and new-generation displays and making a light-emitting diode which operates for a long period of time. The invention discloses an OLED consisting of a transparent electrode, a light-emitting layer and a metal electrode. A protective silver layer is sprayed onto the surface of the metal electrode and in the lower part of the housing there are capsules containing water, oxygen and impurity active absorbers.

EFFECT: design of an OLED which enables to make thin-film panel light sources and full-format displays which retain brightness, contrast and working capacity in a long period of time.

5 cl, 1 tbl, 2 dwg

Up!