材料科学
玻璃化转变
钙钛矿(结构)
复合数
半导体
制作
热分解
导电体
电子迁移率
热传导
热导率
活动层
光电子学
兴奋剂
化学工程
复合材料
纳米技术
图层(电子)
聚合物
有机化学
薄膜晶体管
病理
工程类
化学
医学
替代医学
作者
Xinrui Xie,Lifei He,Yuefang Wei,Tianyu Li,Yi Yuan,Jing Zhang,Peng Wang
标识
DOI:10.1002/aelm.202200425
摘要
Abstract Under long‐term thermal stress, the decomposition of organic‐inorganic hybrid perovskite is a big challenge to realize stable and efficient perovskite solar cells (PSCs). Thereby, it is of pivotal importance to engineer an organic hole transport layer, which is featured not only by an excellent hole conduction but also by a high glass transition temperature. Here, a solution‐processible molecular semiconductor (T5H‐EP‐BMCA) is reported. The air‐doped composite of T5H‐EP‐BMCA presents a hole density of 6.5 × 10 17 cm –3 , a space‐charge‐limited current hole mobility of 5.1 × 10 –4 cm 2 V –1 s –1 , and a direct‐current electrical conductivity of 30.6 µS cm –1 . Moreover, the conductive composite owns a high glass transition temperature of 165 °C, a heat‐resistant morphology, and low gas permeability coefficients. These joint attributes allow for the fabrication of 21.0%‐efficiency, 85 °C‐durable PSC by controlling the thermal decomposition of perovskite.
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