Efficient ternary organic solar cell based on porphyrin material and preparation method thereof

A technology of organic solar cells and porphyrins, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of limited number of excitons, strong molecular aggregation, low efficiency, etc., achieve high photoelectric conversion efficiency, improve morphology, Improve absorption effect
CN110544743AActive Publication Date: 2019-12-06SOUTH CHINA UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2019-12-06

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Abstract

The invention discloses an efficient ternary organic solar cell based on porphyrin materials. The cell sequentially comprises a substrate, an anode, an anode interface modification layer, an active layer, a cathode interface modification layer and a metal electrode from bottom to top. The active layer comprises a blend membrane which is obtained by mixing an electron donor material ZnPor-2DPP, anelectron acceptor material IDIC and PC61BM. The mixed membrane based on the porphyrin donor material ZnPor-2DPP and the acceptor material IDIC has the advantages that the planarity is too strong; themolecular aggregation is severe, the phase separation size is larger and the photoelectric conversion efficiency of a binary system is limited. According to the preparation method, PC61BM is doped into a binary system of ZnPor-2DPP and IDIC, so that the morphology of the active layer of the obtained ternary system is improved, and the current and the filling factor are also improved, and finally,the organic solar cell with the photoelectric conversion efficiency of 7.46%-8.20% is obtained.
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Description

technical field

[0001] The invention belongs to the field of organic photoelectric materials, in particular to a high-efficiency ternary organic solar cell based on porphyrin materials and a preparation method thereof. Background technique

[0002] With the rapid development of the world today, more and more people pay attention to energy consumption and environmental issues. Under the influence of limited resources and severe greenhouse effect, people began to think about how to use renewable energy to continue to survive in a friendly manner without damaging the environment. Solar energy, which accounts for more than 90% of the total energy of the earth, is not only widely distributed, but also has large reserves, and is clean and renewable. It is a good substitute for petroleum fuels. Therefore, the development and utilization of solar energy through the use of photovoltaic cells has become a hot spot of widespread concern in the world today.

[0003] Photovoltaic cells...

Claims

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