一种基于TPD小分子的钙钛矿光传输层制备方法及钙钛矿电池器件制备方法

The perovskite light transport layer was prepared by spin-coating with TPD small molecule solution, which solved the problems of transparency, energy level matching and stability of HTL in inverted perovskite solar cells, improved the photoelectric conversion efficiency and stability of the cell and reduced the preparation cost.

CN119730665BActive Publication Date: 2026-07-17SHAANXI NORMAL UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI NORMAL UNIV
Filing Date
2024-12-27
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the hole transport layer (HTL) of high-performance inverted perovskite solar cells does not meet the requirements for transparency, energy level matching, conductivity, and chemical stability, which affects the photoelectric conversion efficiency and stability of the device.

Method used

A perovskite optical transport layer was prepared by spin coating of TPD small molecule solution. The TPD film and perovskite optical transport layer were formed by two annealing processes. Combined with a NiOx substrate and an electron transport layer, a hole transport layer with high transmittance, appropriate energy level and high conductivity was prepared.

Benefits of technology

This improves the photoelectric conversion efficiency and stability of perovskite solar cells, reduces fabrication costs, and provides a design approach for efficient and stable perovskite solar cell devices.

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Abstract

本发明涉及太阳能光伏技术领域,具体为一种基于TPD小分子的钙钛矿光传输层制备方法及钙钛矿电池器件制备方法,该钙钛矿光传输层的制备方法包括以下步骤:S1,旋涂TPD小分子溶液制成湿膜,之后对湿膜进行第一次退火,获得具有TPD薄膜;S2,在TPD薄膜上旋涂钙钛矿前驱液,之后进行第二次退火,得到具有TPD小分子的钙钛矿光传输层。本发明通过小分子为N,N′‑二苯基‑N,N′‑(3‑甲基苯基)‑1,1′‑联苯‑4,4′‑二胺(TPD)来增加钙钛矿太阳能电池的VOC和PCE,以TPD / 钙钛矿界面较低的陷阱密度提高了钙钛矿太阳能电池的PCE和稳定性。
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