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Organic photovoltaic cell with active layer doped with antioxidant and preparation method thereof

An organic photovoltaic cell and antioxidant technology, applied in photovoltaic power generation, circuits, electrical components and other directions, can solve problems such as poor stability and low photoelectric conversion efficiency, achieve low cost, improve photoelectric conversion efficiency and stability, and simple preparation conditions Effect

Inactive Publication Date: 2011-02-16
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of organic photovoltaic cell with an active layer doped with an antioxidant for the problems of low photoelectric conversion efficiency and poor stability of existing organic photovoltaic cells Organic photovoltaic cell and its preparation method

Method used

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  • Organic photovoltaic cell with active layer doped with antioxidant and preparation method thereof
  • Organic photovoltaic cell with active layer doped with antioxidant and preparation method thereof

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Effect test

Embodiment 1

[0024] (1) After repeatedly cleaning the 3mm×3mm ITO glass in detergent, soak it in isopropanol, acetone and chloroform solution respectively and ultrasonically clean it, and finally dry it in an infrared oven for use;

[0025] (2) In the air or under the protection of an inert gas, spin-coat PEDOT:PSS anode buffer layer on a transparent conductive glass substrate, and dry at 120 degrees for 10 minutes;

[0026] (3) On the PEDOT:PSS anode buffer layer, an organic active layer P3HT:PCBM (P3HT:hydroquinone = 100:0.1, mass ratio) containing a hydroquinone antioxidant was spin-coated, and heat treated at 160 degrees for 20 minutes.

[0027] (4) A cathode buffer layer LiF with a thickness of 1.0 nm was deposited on the active layer by vacuum evaporation.

[0028] (5) With the help of a strip-shaped mask plate, 100 nm of Al is vacuum-deposited as a back electrode, thereby making an organic photovoltaic cell device. Comparative devices were prepared in a similar manner.

[0029] (6...

Embodiment 2

[0031] (1) After repeatedly cleaning the 3mm×3mm ITO glass in detergent, soak it in isopropanol, acetone and chloroform solution respectively and ultrasonically clean it, and finally dry it in an infrared oven for use;

[0032] (2) In the air or under the protection of an inert gas, spin-coat PEDOT:PSS anode buffer layer on a transparent conductive glass substrate, and dry at 120 degrees for 10 minutes;

[0033] (3) An organic active layer P3HT:PCBM (P3HT:hydroquinone = 100:0.5, mass ratio) containing a hydroquinone antioxidant was spin-coated on the PEDOT:PSS anode buffer layer, and heat-treated at 160 degrees for 20 minutes. .

[0034] (4) A cathode buffer layer LiF with a thickness of 1.0 nm was deposited on the active layer by vacuum evaporation.

[0035] (5) 100nm Al is vacuum-deposited as a back electrode, thereby making an organic photovoltaic cell device. A normally uncrosslinked comparative device was prepared in a similar manner.

[0036] (6) The test results show...

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Abstract

The invention relates to an organic photovoltaic cell with an active layer doped with antioxidant and a preparation method thereof, belonging to the field of organic optoelectronics. The organic photovoltaic cell comprises a transparent conducting substrate 1, a PEDOT:PSS anode buffer layer 2, an active layer doped with antioxidant, a cathode modifying layer 4 and a metal back electrode layer 5. The preparation method comprises the following steps of: (1) cleaning and drying the transparent conducting substrate; (2) vortically coating the PEDOT:PSS anode buffer layer 2 on the transparent conducting substrate 1 in the air or under the protection of inert gas and drying; (3) vortically coating the active layer 3 doped with the antioxidant on the PEDOT:PSS anode buffer layer 2 and carrying out heat treatment under the protection of the inert gas; (4) depositing the cathode modifying layer 4 on the active layer 3 by a thermal evaporating or solution vertical coating method; and (5) evaporating the metal Al back electrode 5 by adopting a thermal evaporating method. By doping the antioxidant into the active layer structure, the invention greatly improves the environmental stability of a device. Meanwhile, the photoelectric conversion efficiency and stability of an organic photovoltaic cell device are obviously improved.

Description

【Technical field】: [0001] The invention relates to the field of organic photoelectricity, in particular to an organic photovoltaic cell with an active layer doped with an antioxidant. 【Background technique】: [0002] With the depletion of global oil resources, the development of new energy is becoming increasingly important. A solar cell is a device that converts light energy directly into electricity. As a feasible method to solve the world's energy crisis, the utilization of solar energy has become a frontier subject of extensive research. Therefore, vigorously developing the solar cell industry and using sunlight to generate electricity has become a new energy strategy for the sustainable economic development of countries all over the world. Experts predict that photovoltaic power generation will account for 50% of the world's total power generation by 2030. The research and development of solar cells has always been carried out around the following two key issues: (1)...

Claims

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Application Information

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IPC IPC(8): H01L51/46H01L51/42H01L51/48
CPCY02E10/549
Inventor 杨利营印寿根姚聪王亚凌徐昊田慧
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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