材料科学
吩噻嗪
钙钛矿(结构)
热稳定性
芯(光纤)
电阻率和电导率
化学工程
热的
太阳能电池
光电子学
钙钛矿太阳能电池
复合材料
电气工程
工程类
气象学
物理
药理学
医学
作者
Peng Huang,Manju Manju,Samrana Kazim,Luís Lezama,Rajneesh Misra,Shahzada Ahmad
标识
DOI:10.1021/acsami.1c08470
摘要
Hole-selective layers are an indispensable component for the fabrication of effective perovskite solar cells. We designed and developed two phenothiazine-based hole transport materials: PTADAnCBZ with an electron-donating sulfur atom and PTODAnCBZ with an electron-withdrawing sulfone group in the core. PTODAnCBZ in contrast to PTADAnCBZ possesses a unique molecular orbital distribution and lower dihedral angles, which endowed it with excellent optoelectrical properties, improved charge transportation, and thermal stability. The solar cells fabricated with PTODAnCBZ yielded a higher photovoltaic (PV) performance as compared to PTADAnCBZ and were on par in terms of performance with those fabricated with Spiro-OMeTAD. Notably, the phenothiazine-based PV devices showed improved stability under multi-stress conditions including moisture, moisture and light, and moisture and heat. Phenothiazine-based molecules showed unparalleled thermal stability as compared to the doped Spiro-OMeTAD. Our findings pinpoint the advantages of cost-effective phenothiazine with dioxide as hole-selective layers and suggest its application in a variety of optoelectrical devices such as PVs and organic LED.
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