期刊
ACS APPLIED ENERGY MATERIALS
卷 3, 期 8, 页码 7456-7463出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.0c00811
关键词
perovskite solar cells; hole-transporting material; spiro- bicyclopentadithiophene; photostability; thermal stability
资金
- EU-project GOTSolar
- TUBITAK.2214-A International Doctoral Research Fellowship Programme
- Swiss National Science Foundation [P300P2_174471]
- NRW via PEROBOOST [EFRE-0800118]
- Swiss National Science Foundation (SNF) [P300P2_174471] Funding Source: Swiss National Science Foundation (SNF)
There is an urge to develop new hole-transporting materials (HTMs) for perovskite solar cells (PSCs), which can yield comparable power conversion efficiencies (PCEs) yet mitigate the issue of stability associated with the state-of-the-art HTM Spiro-MeOTAD. Herein, we designed and prepared C-2v-symmetric spiro-configured HTM-1 comprising a central acridine-cyclopentadithiophene core unit flanked with triarylamine moieties. PSCs containing a 40 nm thin HTM-1 layer for hole extraction yielded a stabilized PCE approaching 21% under standard illumination. Owing to its higher hole mobility (mu(h)) at low electric field, an impressive short-circuit current density (J(SC)) of 24.7 mA cm(-2) and a high fill factor (FF) of 0.77 have been achieved. More importantly, HTM-1-based PSCs presented an excellent long-term operational stability under continuous illumination for 400 h and thermal stability at 80 degrees C, which can be ascribed to its high glass transition temperature of 168 degrees C and superior moisture tolerance. Arguably, the confluence of high performance and remarkable stability will lead to the development of technologically interesting new, stable, and efficient PSCs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据