Halogenated conjugated molecules for ambipolar field-effect transistors and non-fullerene organic solar cells

被引:185
作者
Yang, Fan [1 ,2 ]
Li, Cheng [1 ]
Lai, Wenbin [1 ]
Zhang, Andong [1 ,2 ]
Huang, Hui [2 ]
Li, Weiwei [1 ]
机构
[1] Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 10090, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
基金
中国国家自然科学基金;
关键词
THIN-FILM TRANSISTORS; ORGANOMETAL HALIDE PEROVSKITES; N-CHANNEL SEMICONDUCTORS; ELECTRON-ACCEPTOR; PHOTOVOLTAIC CELLS; ENERGY-LOSS; EFFICIENCY; PERFORMANCE; POLYMERS; DERIVATIVES;
D O I
10.1039/c7qm00025a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A series of halogenated conjugated molecules, containing F, Cl, Br and I, were easily prepared via Knoevenagel condensation and applied in field-effect transistors and organic solar cells. Halogenated conjugated materials were found to possess deep frontier energy levels and high crystallinity compared to their non-halogenated analogues, which is due to the strong electronegativity and heavy atom effect of halogens. As a result, halogenated semiconductors provide high electron mobilities up to 1.3 cm(2) V-1 s(-1) in transistors and high efficiencies over 9% in non-fullerene solar cells.
引用
收藏
页码:1389 / 1395
页数:7
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