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

来源：

MATERIALS CHEMISTRY FRONTIERS | 2017年 / 1卷 / 07期

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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