Five-membered heterocyclic derivative-bridged perylene diimide dipolymer and its preparation method and use in organic photovoltaic device
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- INST OF CHEM CHINESE ACAD OF SCI
- Publication Date
- 2014-09-17
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Abstract
Description
technical field
[0001] The invention belongs to the field of organic photovoltaic materials, and relates to a 1,1'-dialkoxy substituted asymmetric perylene diimide dimer, its preparation method and its application in the field of organic photovoltaic materials. Background technique
[0002] Solar energy is a green and environmentally friendly renewable energy, and its transformation and application is one of the important strategic ways to solve the energy crisis. Compared with the high photoelectric conversion efficiency (20-30%) of silicon-based and inorganic semiconductor photovoltaic materials, the conversion efficiency of polymer photovoltaic materials is still low, only about 6-8%.
[0003] Traditional polymer photovoltaic materials use poly(3-hexyl-thiophene) (referred to as P3HT, formula a) as the electron donor material, fullerene derivatives ([6,6]-phenyl-C61-butyric acid methyl ester, referred to as PC61BM or PC60BM and [6,6]-phenyl-C71-butyric acid methyl ester,...