三苯胺
卤化物
钙钛矿(结构)
三氧化钼
图层(电子)
碘
化学工程
热稳定性
化学
材料科学
热分解
无机化学
钼
光电子学
光化学
纳米技术
有机化学
工程类
作者
Jisu Hong,Zhaojian Xu,Dominique Lungwitz,J.L. Scott,H. M. Johnson,Yun‐Hi Kim,Antoine Kahn,Barry P. Rand
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-11-03
卷期号:8 (12): 4984-4992
标识
DOI:10.1021/acsenergylett.3c01873
摘要
Halide perovskite solar cells (PSCs) exhibit commercialization potential, but long-term stability still must be addressed. Among various products of perovskite decomposition, iodine species are of considerable concern due to their high vapor pressure and corrosive nature. To address this, a small-molecule hole transport layer (HTL), 4,4′,4″-tris[(3-methylphenyl)phenylamino]triphenylamine (m-MTDATA), is used; mixing it with molybdenum trioxide (MoO3) p-dopes the layer and slows iodine permeation. We demonstrate that m-MTDATA:MoO3 HTLs employed in PSCs improve stability under both thermal and voltage bias stress compared to devices with a conventional doped 2,2′,7,7′-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (spiro-OMeTAD) HTL.
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