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Invention Publication
CN108281555A 一种以氧化钛和钛酸钡复合材料作为电子传输层的钙钛矿太阳能电池及其制备方法 无效 - 撤回

一种以氧化钛和钛酸钡复合材料作为电子传输层的钙钛矿太阳能电池及其制备方法
Abstract:
一种以氧化钛和钛酸钡复合材料作为电子传输层的钙钛矿太阳能电池及其制备方法，属于太阳电池技术领域。依次由FTO导电玻璃、由致密的TiO2薄膜与BaTiO3薄膜构成的电子传输层、CH3NH3PbI3光吸收层、2,2',7,7'-四[N,N-二(4-甲氧基苯基)氨基]-9,9'-螺二芴空穴传输层和Ag电极组成。本发明中采用了新型的BaTiO3/TiO2复合材料作为钙钛矿太阳电池的电子传输层，通过BaTiO3与CH3NH3PbI3钙钛矿材料晶体结构相似的特性引导生长出与电子传输层结合更紧密的、更大晶粒的钙钛矿吸光材料，改善了电子传输层与钙钛矿层之间接触界面的微观形貌，进一步提高了钙钛矿太阳电池的光电特性，达到提高太阳能电池的性能的目的。
Abstract(English):

The invention discloses a perovskite solar cell using titanium oxide and barium titanate composite material as an electron transfer layer and its preparation method, and belongs to the technical fieldof a solar cell. The perovskite solar cell is orderly composed of a FTP conductive glass, an electron transfer layer formed by a compact TiO2 thin film and a BaTiO3 thin film, a CH3NH3PbI3 light absorbing layer, a 2, 2', 7, 7'-tetra[N, N-bis(4-methoxy- phenyl)amino]-9, 9'-spirobifluorene hole transfer layer and Ag electrode. The invention adopts the BaTiO3/TiO2 composite material as the electrontransfer layer of the perovskite solar cell; through the similar property of the BaTiO3 and CH3NH3PbI3 perovskite material crystal structure, compacter and larger-crystal-grain perovskite light absorbing material combined with the electron transfer layer is guided to grow; the microstructure of the contact interface between the electron transfer layer and the perovskite layer is improved, the current-illumination characteristic of the perovskite battery cell is further promoted; the solar cell performance is further improved.

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