A selenophene-containing conjugated organic ligand for two-dimensional halide perovskites
A selenophene-containing conjugated organic ligand for two-dimensional halide perovskites
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二维卤化物钙钛矿的含硒吩共轭有机配体
DOI：
10.1039/d1cc04679a
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发表时间：
2021
影响因子：
4.9
通讯作者：
Dou, Letian
中科院分区：
文献类型：
--
作者：
Wei, Zitang;Wang, Kang;Zhao, Wenchao;Gao, Yao;Hu, Qixuan;Chen, Ke;Dou, Letian
合成了含硒吩共轭有机配体2-(4'-甲基-5'-(5-(3-甲基噻吩-2-基)硒吩-2-基)-[2,2'-联噻吩]-5-基)乙烷-1-铵(STm)，并将其掺入Sn(II)基二维钙钛矿(STm)2SnI4中。钙钛矿和配体之间的能带偏移可以通过引入 STm 配体进行微调。基于(STm)2SnI4薄膜的场效应晶体管和发光二极管器件均表现出高性能和增强的工作稳定性。
A selenophene-containing conjugated organic ligand, 2-(4′-methyl-5′-(5-(3-methylthiophen-2-yl)selenophen-2-yl)-[2,2′-bithiophen]-5-yl)ethan-1-aminium (STm), was synthesized and incorporated into a Sn(II)-based two-dimensional perovskite, (STm)2SnI4. The band offset between the perovskite and ligand can be fine-tuned by introducing the STm ligand. Both field-effect transistor and light-emitting diode devices based on (STm)2SnI4 films exhibit high performance and enhanced operational stability.