Double-electron-transport-layer inorganic perovskite solar cell and preparation method thereof, and application of double-electron-transport-layer inorganic perovskite solar cell

A technology of solar cells and double electron transmission, applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low photoelectric conversion efficiency of devices, hindering electron transmission, and large energy levels, so as to improve energy conversion efficiency, reduce recombination, The effect of improving crystallization performance
CN110335945AActive Publication Date: 2019-10-15SOUTH 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
2019-10-15

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Abstract

The invention belongs to the technical field of preparation of all-inorganic perovskite solar cell devices, and particularly relates to a double-electron-transport-layer inorganic perovskite solar cell and a preparation method thereof, and application of a double-electron-transport-layer inorganic perovskite solar cell. The double-electron-transport layer (SnO2-PEIE) is obtained by spin coating ofa cathode layer by adopting a solution processing method and annealing in the atmosphere. By adding the PEIE layer, the energy level difference between the SnO2 electron transport layer and the perovskite layer can be reduced, better energy level matching is achieved, the electron extraction capability is enhanced, the electron-hole coincidence in the perovskite light absorption layer is reduced,the photoelectric conversion efficiency of the CsPbIBr2 solar cell is improved, and therefore, the all-inorganic perovskite solar cell device with a high photovoltaic performance is obtained.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of all-inorganic perovskite solar cell devices, in particular to an inorganic perovskite solar cell with a double electron transport layer and its preparation method and application. Background technique

[0002] Stepping into the 21st century, human society and science and technology continue to progress and develop, but what follows is the increasingly serious problem of energy scarcity and environmental pollution. The most effective means to solve this pair of problems is to vigorously develop and promote clean energy and renewable energy. As the most abundant clean energy and renewable energy on earth, solar energy has attracted the attention of scientists from all over the world. In the effective use of solar energy, solar cells can convert solar energy into electrical energy for human use through the photoelectric effect of materials. Therefore, solar cells have become the fastest grow...

Claims

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