A fully inorganic perovskite solar cell and a preparation method thereof

A technology of solar cells and inorganic calcium, which is applied in circuits, photovoltaic power generation, electrical components, etc., can solve the problems of low open circuit voltage of all-inorganic perovskite solar cells, reduced photoelectric conversion efficiency of devices, and low photoelectric conversion efficiency. Enhanced extraction capability, improved open circuit voltage and device performance, and reduced electron-hole recombination effects
CN109065733AInactive Publication Date: 2018-12-21SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
Publication Date
2018-12-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of solar cell devices, and discloses a fully inorganic perovskite solar cell and a preparation method thereof. The solar cell is a two-electron transport layer with SnO2 @ ZnO structure. The two-electron transport layer is prepared by spin-coating SnO2 solution and n-butanol solution of ZnO nanoparticles, and then thermal annealing. The most commonly used inorganic electron transport material ZnO nanoparticles are fabricated between the photoabsorbing layer and the SnO2 electron transport layer by a solution processing method, which forms an excellent step energy level, realizes better energy level matching, enhances electron extraction ability and greatly reduces the electron-hole recombination in the light absorbing layer. The open-circuit voltage and photoelectric conversion efficiency of fully inorganic perovskite solar cells are improved. Based on this two-electron transport layer structure, the fully inorganic perovskite solar cells with high photovoltaic performance can be obtained.
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Description

technical field

[0001] The invention belongs to the technical field of solar cell devices, and in particular relates to an all-inorganic perovskite solar cell and a preparation method thereof. Background technique

[0002] In recent years, the problem of energy scarcity and environmental pollution has become more and more prominent, which has become a major obstacle to the sustainable development of human beings in the future, and vigorously developing and promoting clean and renewable energy technologies is the most effective means to solve these two problems at the same time. Among the many clean energies available on the earth, solar energy is the most abundant and fundamental form of energy. How to utilize solar energy more fully, effectively and at low cost has become the focus of attention of scientists from all over the world. Solar cells can directly convert solar energy into electrical energy for the use of human society, which is one of the best ways to effectively...

Claims

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