High-Performance Organic Solar Cells with Efficient Semiconducting Small Molecules Containing an Electron-Rich Benzodithiophene Derivative

被引：70

作者：

Lim, Namwoo ^{[1
]}

Cho, Nara ^{[1
]}

Paek, Sanghyun ^{[1
]}

Kim, Chulwoo ^{[2
]}

Lee, Jae Kwan ^{[3
,4
]}

Ko, Jaejung ^{[1
]}

机构：

[1] Korea Univ, Dept Chem Mat, Sejong 339709, South Chungcheo, South Korea

[2] Konkuk Univ, Nanotechnol Res Ctr, Chungju 380701, North Chungcheo, South Korea

[3] Chosun Univ, Dept Carbon Mat, Kwangju 501759, Gyeonggi, South Korea

[4] Chosun Univ, Dept Chem Educ, Kwangju 501759, Gyeonggi, South Korea

来源：

CHEMISTRY OF MATERIALS | 2014年 / 26卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

OPEN-CIRCUIT VOLTAGE; CHARGE-TRANSPORT; CORE;

D O I：

10.1021/cm5004092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-performance organic semiconductors based on an electron-rich alkylsilylethynyl benzodithiophene (TIPSBDT) core were newly synthesized and characterized for use in solution-processed small-molecule organic solar cells. The rigid and extended if-conjugation of the TIPSBDT motifs facilitates intramolecular charge transfer and intermolecular pi-pi packing interactions of semiconducting small molecules in the BHJ film enhanced by processing additives and induces deep HOMO levels producing high open-circuit voltage of similar to 1.0 V, exhibiting notable power conversion efficiency of 5.84% from a bulk-heterojunction film with PC61BM.

引用

页码：2283 / 2288

页数：6

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