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Application of organic free radicals and derivatives thereof in photovoltaic devices

A technology of photovoltaic devices and free radicals, which is applied in the application field of organic free radicals and their derivatives in photovoltaic devices, can solve the problems of restricting the development and application of organic free radical materials, and the narrow application range of organic free radicals, and achieves widespread acceptance. Body selection, widening applications, and the effect of expanding applications

Active Publication Date: 2019-11-01
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application range of organic free radicals is relatively narrow, mainly focusing on the design and synthesis of organic free radical compounds or organic free radical polymer materials, which limits the further development and application of organic free radical materials

Method used

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  • Application of organic free radicals and derivatives thereof in photovoltaic devices
  • Application of organic free radicals and derivatives thereof in photovoltaic devices
  • Application of organic free radicals and derivatives thereof in photovoltaic devices

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Embodiment 1 Preparation of upright organic / polymer photovoltaic device

[0034] The ITO conductive glass, with a square resistance of ~20 ohms / square meter, was pre-cut into 15mm×15mm square pieces. Use acetone, special detergent for micron-sized semiconductors, deionized water, and isopropanol to clean ultrasonically in sequence, and then place it in a constant temperature oven for later use after purging with nitrogen. Before use, clean ITO sheets were bombarded with plasma in an oxygen plasma etcher for 10 minutes. On the anode ITO conductive glass, use PEDOT:PSS aqueous dispersion (about 1.3-1.7%, purchased from Xi'an Baolight Optoelectronics Technology Co., Ltd.) as the anode modification layer, and pass through a homogenizer (KW-4A) at high speed (3200 rpm) per minute) spin-coating, the thickness is determined by the concentration of the solution and the rotational speed, and is measured and monitored with a probe-type surface profiler (Dektak-XT type of Bruker ...

Embodiment 2

[0039] Embodiment 2 Preparation of inverted organic / polymer photovoltaic device

[0040] The ITO conductive glass, with a square resistance of ~20 ohms / square meter, was pre-cut into 15mm×15mm square pieces. Use acetone, special detergent for micron-sized semiconductors, deionized water, and isopropanol to clean ultrasonically in sequence, and then place it in a constant temperature oven for later use after purging with nitrogen. Before use, clean ITO sheets were bombarded with plasma in an oxygen plasma etcher for 15 minutes. First prepare the composite cathode layer (ITO / ZnO) of ITO / ZnO: spin-coat (rotating speed 3000 revolutions per minute) one deck zinc acetate solution (concentration 100 mg per milliliter) on the ITO conductive glass, heat treatment at 200 degrees Celsius for 1 hour, A layer of zinc oxide is formed as a cathode modification layer.

[0041] After the conjugated polymer donor material PBDB-T was weighed in a clean bottle, it was transferred to a special g...

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Abstract

The invention belongs to the field of organic free radical photovoltaic technology, and particularly relates to the application of organic free radicals and derivatives thereof in photovoltaic devices. Organic free radicals and derivatives thereof are used as electron acceptor materials, small molecules or conjugated polymers are used as electron donor materials, and organic / polymer photovoltaic devices are prepared by adopting a solution processing method to produce photovoltaic effects. The method of the invention further broadens the application of the organic free radical material in the photovoltaic device, breaks the application bottleneck of the organic free radical material, can effectively expand the application of the organic free radical material, and exerts the potential photoelectric characteristics of the materials.

Description

technical field [0001] The invention belongs to the technical field of organic / polymer photovoltaics, and specifically relates to the application of organic free radicals and derivatives thereof in photovoltaic devices. Background technique [0002] Organic photovoltaic devices are a new type of devices that convert solar energy into electrical energy. Due to their low cost, simple fabrication method, variable material structure, light weight, and flexible large-area fabrication, they have attracted widespread attention from the scientific community and the industry. In polymer photovoltaic devices, the choice of active layer materials is of paramount importance, which consists of organic or polymeric donor and acceptor materials. At present, many donor materials and acceptor materials have been researched by researchers. At the same time, in the field of organic / polymer photovoltaic devices, the optimization and innovation of photovoltaic devices is an excellent means to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K85/00H10K85/113H10K30/30Y02E10/549
Inventor 张斌许金桂朱卫国
Owner CHANGZHOU UNIV
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