Benzothiadiazole-Based Linear and Star Molecules: Design, Synthesis, and Their Application in Bulk Heterojunction Organic Solar Cells

被引：134

作者：

Li, Weiwei ^{[1
,2
]}

Du, Chun ^{[1
]}

Li, Fenghong ^{[2
]}

Zhou, Yi ^{[2
]}

Fahlman, Mats ^{[2
]}

Bo, Zhishan ^{[1
]}

Zhang, Fengling ^{[2
]}

机构：

[1] CAS, Inst Chem, Lab Polymer Phys & Chem, Beijing 100190, Peoples R China

[2] Linkoping Univ, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 21期

基金：

瑞典研究理事会;

关键词：

INTERNAL CHARGE-TRANSFER; CONJUGATED SYSTEMS; PHOTOVOLTAIC PROPERTIES; SHAPED MOLECULE; POLYMER; EFFICIENCY; TRIPHENYLAMINE; ARMS;

D O I：

10.1021/cm902611b

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：

Star molecules have many advantages, such as monodispersity, excellent solubility, and vast structures with different functional groups. A set of four-arm star molecules with benzothiadiazole as the core, oligothiophene its the arm, and triphenylamine its the end group and their linear counterparts were designed and synthesized Organic solar cells (OSCs) fabricated with these star molecules and [6,6]-phenyl C-71 butyric acid methyl ester (PC71BM) by spin-coating from solution demonstrate similar short circuit current density (J(sc)) and fill factor (FF) but larger open circuit voltage (V-oc) in comparison With solar cells fabricated with corresponding linear molecules and PC71BM A power conversion efficiency (PCE) of 18%, with J(sc) = 4.9 mA/cm(2), V-oc = 0 92 V, and FF = 0 41 was achieved with one of these star molecules

引用

页码：5327 / 5334

页数：8

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