Siloxane-Terminated Solubilizing Side Chains: Bringing Conjugated Polymer Backbones Closer and Boosting Hole Mobilities in Thin-Film Transistors

被引：632

作者：

Mei, Jianguo ^{[1
]}

Kim, Do Hwan ^{[1
]}

Ayzner, Alexander L. ^{[1
,2
]}

Toney, Michael F. ^{[2
]}

Bao, Zhenan ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA

[2] Stanford Synchrotron Radiat Lightsource, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2011年 / 133卷 / 50期

关键词：

HETEROJUNCTION SOLAR-CELLS; FIELD-EFFECT TRANSISTORS; HIGH-PERFORMANCE; DONOR;

D O I：

10.1021/ja209328m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We introduce a novel siloxane-terminated solubilizing group and demonstrate its effectiveness as a side chain in an isoindigo-based conjugated polymer. An average hole mobility of 2.00 cm(2) V-1 s(-1) (with a maximum mobility of 2.48 cm(2) V-1 s(-1)), was obtained from solution-processed thin-film transistors, one of the highest mobilities reported to date. In contrast, the reference polymer with a branched alkyl side chain gave an average hole mobility of 0.30 cm(2) V-1 s(-1) and a maximum mobility of 0.57 cm(2) V-1 s(-1). This is largely explained by the polymer packing: our new polymer exhibited a pi-pi stacking distance of 3.58 angstrom, while the reference polymer showed a distance of 3.76 angstrom.

引用

页码：20130 / 20133

页数：4

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