可自组装材料、自组装材料、光伏器件和电池

By forming nanofiber materials from self-assembled triphenylamine and phenylcarbazole derivatives, the stability and efficiency issues of the hole transport layer in perovskite photovoltaic solar cells were solved, resulting in higher photoelectric conversion efficiency and longer lifespan.

CN116836106BActive Publication Date: 2026-07-17SUZHOU GUOXIAN INNOVATION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU GUOXIAN INNOVATION TECHNOLOGY CO LTD
Filing Date
2023-06-30
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing perovskite photovoltaic solar cells suffer from poor hole transport layer material stability, which limits device efficiency and lifespan. Furthermore, traditional materials have shortcomings in hole transport capability and conductivity.

Method used

Self-assembling materials, including triphenylamine and phenylcarbazole derivatives, are used to self-assemble into nanofibers under light irradiation. These nanofibers serve as hole transport layers or passivation layers and form stable supramolecular structures through π-π stacking and hydrogen bonding, thereby improving hole and electron transport capabilities.

Benefits of technology

It enhances the stability and photoelectric conversion efficiency of perovskite photovoltaic devices, improves the overall performance of the devices, and enhances the separation and transport capabilities of holes and electrons.

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Abstract

本发明涉及光伏材料技术领域,具体公开了一种可自组装材料,包括式(I)和 / 或式(II)所示化合物,R1、R2和R3中至少一个为‑NR7COCH2R8,其余为‑OR9R10;R4、R5和R6中至少一个为‑NR7COCH2R8,其余为‑OR9R10;R7为:‑H、‑CH3,R8为:‑H、‑Cl或苯基,R9为:‑(CH2)r‑,r为2‑10的整数,R10为:甲基、苯基、富勒烯衍生基团、锚定基、有机膦或有机胺基团。使用该可自组装材料作为钙钛矿光伏电池的空穴传输层或钝化材料的方案,具有优良的空穴传输能力,并且能有效地降低钙钛矿HTL层的表面缺陷,提高钙钛矿光伏器件的光电转换效率。
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