Fullerene derivative-based solar cell and preparation method thereof

Abstract

The invention discloses a fullerene derivative-based solar cell and a preparation method thereof, relates to the field of fabrication of a photovoltaic device, and aims to solve the problems that a thermal crystal material in an active layer in the solar cell in the prior art is difficult to form a film under a low temperature and other function layers can be damaged during film formation under ahigh temperature. The solar cell comprises a light active layer, wherein the light active layer comprises an electron donor, an electron acceptor and a fullerene derivative, and the electron donor employs the thermal crystal material. By adding the fullerene derivative into the light active layer of the solar cell, polymer molecules extremely easy to agglomerate can be uniformly dispersed in an organic solution under a low temperature by the fullerene derivative similar to a dispersing agent, so that the polymer molecules can form the film under the low temperature. The fullerene derivative-based solar cell is applicable to aspects of an organic polymer photovoltaic device or an organic semiconductor thin film solar cell.

Description

technical field [0001] The invention belongs to the field of organic semiconductor thin film solar cells, in particular to a solar cell based on fullerene derivatives and a preparation method. Background technique [0002] With the rapid growth of global energy demand, human society is facing social problems such as severe energy crisis and environmental degradation. The development of society requires an increasing demand for energy, but the reserves of traditional energy are very limited. At the same time, the use of traditional energy has also caused very serious environmental problems, including hot issues such as air pollution, water pollution, greenhouse effect, and PM2.5. As a renewable energy source, solar energy is the fastest growing and most dynamic research field in recent years, and it is one of the most watched projects. According to the different properties of the photoactive layer materials of solar cells, the photoactive layer materials can be divided into ...

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Problems solved by technology

[0004] The object of the present invention is: aiming at the problem that the thermal crystallization material in the active layer of the solar cell in the prior art is difficult to form a film at a low temperature and the film formation at a high temperature will destroy other functional layers, the present invention provides a fuller-based Solar cell and preparation method of alkene derivative

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