A Facile Synthesis of Low-Band-Gap Donor-Acceptor Copolymers Based on Dithieno[3,2-b:2′,3′-d]thiophene

被引：29

作者：

Ku, Sung-Yu ^{[1
,4
]}

Liman, Christopher D. ^{[1
,2
,4
]}

Burke, Daniel J. ^{[1
,3
]}

Treat, Neil D. ^{[1
,2
,3
]}

Cochran, Justin E. ^{[1
,3
]}

Amir, Elizabeth ^{[1
,4
]}

Perez, Louis A. ^{[1
,2
]}

Chabinyc, Michael L. ^{[1
,2
,4
]}

Hawker, Craig J. ^{[1
,2
,3
,4
,5
]}

机构：

[1] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA

[4] Univ Calif Santa Barbara, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA

[5] King Fahd Univ Petr & Minerals, Dhahran 31261, Saudi Arabia

来源：

MACROMOLECULES | 2011年 / 44卷 / 24期

基金：

美国国家科学基金会;

关键词：

CONJUGATED POLYMERS; FUSED THIOPHENES; HIGH-MOBILITY; SOLAR-CELLS; TRIPHENYLAMINE; MORPHOLOGY; FURAN;

D O I：

10.1021/ma202095j

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A facile and scalable synthetic route to a soluble dithieno[3,2-b:2',3'-d]thiophene (DTT) unit has been developed, which utilizes a Stile coupling reaction to efficiently synthesize the bisthienyl sulfide intermediate. This simplifies the overall DTT synthesis to only four steps with a 44% yield and facilitates its use as a donor unit in low-band-gap polymers. Solution processable alternating D-pi-A-pi polymers (DTTBTO and DTTDPP) have been synthesized with DTT as the donor unit and either a benzothiodiazole derivative (BTO) or fused ring 1,4-diketopyrrolo[3,4-c]pyrrole (DPP) serving as the acceptor unit. The ability to tailor the structure of these donor-acceptor systems permits a detailed understanding of structure/property relationships for band-gap engineering, absorbance, V-oc, and efficiency to be developed and applied to the design of high-performance organic solar cells.

引用

页码：9533 / 9538

页数：6

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