Boosting the Ambipolar Performance of Solution-Processable Polymer Semiconductors via Hybrid Side-Chain Engineering

被引：471

作者：

Lee, Junghoon ^{[1
]}

Han, A-Reum ^{[2
]}

Yu, Hojeong ^{[2
]}

Shin, Tae Joo ^{[3
]}

Yang, Changduk ^{[1
]}

Oh, Joon Hak ^{[2
]}

机构：

[1] UNIST, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea

[2] UNIST, Sch Nanobiosci & Chem Engn, KIER UNIST Adv Ctr Energy, Low Dimens Carbon Mat Ctr, Ulsan 689798, South Korea

[3] Pohang Univ Sci & Technol, Pohang Accelerator Lab, Pohang 790784, Kyungbuk, South Korea

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 25期

基金：

新加坡国家研究基金会;

关键词：

THIN-FILM TRANSISTORS; FIELD-EFFECT TRANSISTORS; CHARGE-TRANSPORT; HIGH-MOBILITY; ORGANIC SEMICONDUCTORS; HOLE MOBILITIES; COPOLYMER; DEPOSITION; DISPLAYS; ACCEPTOR;

D O I：

10.1021/ja403949g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ambipolar polymer semiconductors are highly suited for use in flexible, printable, and large-area electronics as they exhibit both n-type (electron-transporting) and p-type (hole-transporting) operations within a single layer. This allows for cost-effective fabrication of complementary circuits with high noise immunity and operational stability. Currently, the performance of ambipolar polymer semiconductors lags behind that of their unipolar counterparts. Here, we report on the side-chain engineering of conjugated, alternating electron donoracceptor (D-A) polymers using diketopyrrolopyrrole-selenophene copolymers with hybrid siloxane-solubilizing groups (PTDPPSe-Si) to enhance ambipolar performance. The alkyl spacer length of the hybrid side chains was systematically tuned to boost ambipolar performance. The optimized three-dimensional (3-D) charge transport of PTDPPSe-Si with pentyl spacers yielded unprecedentedly high hole and electron mobilities of 8.84 and 4.34 cm(2) V-1 s(-1), respectively. These results provide guidelines for the molecular design of semiconducting polymers with hybrid side chains.

引用

页码：9540 / 9547

页数：8

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