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Stabilized photoactive composition and use thereof

A photoactive and composition technology, which is applied in the fields of photovoltaic power generation, electric solid state devices, semiconductor devices, etc., can solve the problems of prolonged production time, unfavorable production cost of photovoltaic devices, and increased production cost.

Active Publication Date: 2013-05-01
ENI SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the encapsulation of these photovoltaic devices requires prolonged production times and increases in production costs, especially in the case of polymer photovoltaic devices which typically have low solar radiation conversion efficiencies (between about 3% and about 7%), making the production costs of these photovoltaic devices even more unfavorable

Method used

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  • Stabilized photoactive composition and use thereof
  • Stabilized photoactive composition and use thereof
  • Stabilized photoactive composition and use thereof

Examples

Experimental program
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Effect test

example 1

[0166] Prepare two separate solutions:

[0167] - Solution A: 1.51 g poly(3-hexylthiophene) (P3HT) (Aldrich, regioregular) was dissolved in 50 ml 1,2-dichlorobenzene;

[0168] - Solution B: 0.453 g of the commercially available mixture Cyasorb THT 4611 (Cytec Industries) was dissolved in 50 ml 1,2-dichlorobenzene.

[0169] Then, 10.0 ml of solution A and 0.1 ml of solution B were mixed to obtain poly(3-hexylthiophene) and Cyasorb Solution of THT 4611 [0.3% by weight relative to the weight of poly(3-hexylthiophene)] in 1,2-dichlorobenzene (solution C).

[0170] By calcium fluoride (CaF 2 ) on an inert support by spin coating (Spin Coater KW-4A from Chemat Technology) at 500 rpm in air at room temperature (25°C) for 60 seconds using 0.5 ml of solution C, while prepared from solution C membrane.

[0171] The film obtained from solution C above, after evaporation of the solvent, had a thickness equal to 0.6 μm (the thickness was measured with a profilometer Dektak 150 surfa...

example 2

[0182] Prepare three separate solutions:

[0183] - Solution A1: 0.750 g poly(3-hexylthiophene) (P3HT) (Aldrich, regioregular) was dissolved in 50 ml 1,2-dichlorobenzene;

[0184] - Solution B1: 0.151 g of the commercially available mixture Cyasorb THT 6435 (Cytec Industries) was dissolved in 50ml 1,2-dichlorobenzene;

[0185] - Solution C1: 0.152 g of the commercially available mixture Cyasorb THT 4611 (Cytec Industries) was dissolved in 50 ml 1,2-dichlorobenzene.

[0186] Then 10.0ml of solution A1 and 0.1ml of solution B1 were mixed to obtain poly(3-hexylthiophene) and Cyasorb Solution of THT 6435 [0.2% by weight relative to the weight of poly(3-hexylthiophene)] in 1,2-dichlorobenzene (solution D1).

[0187] Furthermore, 10.0 ml of solution A1 and 0.1 ml of solution C1 were mixed to obtain poly(3-hexylthiophene) and Cyasorb Solution of THT 4611 [0.2% by weight relative to the weight of poly(3-hexylthiophene)] in 1,2-dichlorobenzene (solution E1).

[0188] Depositi...

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Abstract

Stabilized photoactive composition comprising: - at least one photoactive organic polymer; - at least one light stabilizer selected from hindered amines; - at least one UV absorber selected from triazines, benzoxazinones, benzotriazoles, benzophenones, benzoates, formamidines, cinnamates or propenoates, aromatic propanediones, benzoimidazoles, cycloaliphatic ketones, formanilides including oxamides, cyanoacrylates, benzopyranones, salicylates, or mixtures thereof. Said photoactive composition can be advantageously used in the construction of photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on both rigid and flexible supports.

Description

technical field [0001] The present invention relates to a stable photoactive composition. [0002] More specifically, the present invention relates to a stable photoactive composition comprising at least one photoactive organic polymer, at least one light stabilizer and at least one ultraviolet absorber. [0003] The invention also relates to the use of the composition to construct photovoltaic devices such as, for example, photovoltaic cells, photovoltaic modules, solar cells, solar modules, on rigid and flexible supports. Background technique [0004] Photovoltaic devices are capable of converting the energy of light radiation into electrical energy. Currently, most of the photovoltaic devices available for practical application exploit the physico-chemical properties of inorganic types of photoactive materials, especially high-purity crystalline silicon. Due to the high production costs of silicon, scientific research has directed its efforts towards the development of ...

Claims

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Application Information

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IPC IPC(8): C08K5/3435H01L51/42C08L65/00
CPCC08K5/34H01L51/0007H01L51/0035H01L51/4253C08K5/005C08G2261/141C08G2261/3223C08G2261/91H01L51/42C08G2261/594H01L51/0038H01L51/0036Y02E10/549H10K71/15H10K85/113H10K85/111C08L65/00H10K85/114H10K30/30
Inventor 亚历山大·科米内蒂马里奥·萨尔瓦拉格吉奥温琴佐·马拉泰斯塔
Owner ENI SPA
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