Synthesis of 1,3,4-thiadiazole-based donor-acceptor alternating copolymers for polymer solar cells with high open-circuit voltage

被引：13

作者：

Fukuta, Seijiro ^{[1
,2
]}

Wang, Zhongqiang ^{[3
,4
]}

Miyane, Satoshi ^{[1
,2
]}

Koganezawa, Tomoyuki ^{[5
]}

Sano, Takeshi ^{[6
]}

Kido, Junji ^{[3
,4
]}

Mori, Hideharu ^{[1
,3
,4
]}

Ueda, Mitsuru ^{[7
]}

Higashihara, Tomoya ^{[1
,2
,8
]}

机构：

[1] Yamagata Univ, Grad Sch Sci & Engn, Dept Polymer Sci & Engn, Yonezawa, Yamagata 9928510, Japan

[2] Yamagata Univ, Grad Sch Sci & Engn, Innovat Flex Course Frontier Organ Mat Syst, Yonezawa, Yamagata 9928510, Japan

[3] Yamagata Univ, Grad Sch Sci & Engn, Dept Organ Device Engn, Yonezawa, Yamagata 9928510, Japan

[4] Yamagata Univ, Res Ctr Organ Elect ROEL, Yonezawa, Yamagata 9928510, Japan

[5] Japan Synchrotron Radiat Res Inst, Nishinomiya, Hyogo, Japan

[6] Yamagata Univ, Innovat Ctr Organ Elect INOEL, Yonezawa, Yamagata 9928510, Japan

[7] Kanagawa Univ, Dept Chem, Yokohama, Kanagawa, Japan

[8] Japan Sci & Technol Agcy JST, PRESTO, Saitama, Japan

来源：

POLYMER JOURNAL | 2015年 / 47卷 / 07期

基金：

日本科学技术振兴机构;

关键词：

PI-CONJUGATED POLYMERS; STRUCTURAL ORDER; THIOPHENE; MOBILITY; SEMICONDUCTORS; TRANSISTORS; MORPHOLOGY; PACKING; DESIGN; UNITS;

D O I：

10.1038/pj.2015.19

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We report the synthesis and characterization of novel 1,3,4-thiadiazole (TDz)-containing pi-conjugated alternating copolymers with donor units, such as thiophene (PTDzTh), selenophene (PTDzSe), thieno[3,4-b]thiophene (PTDzTT), 3,3'-didodecyl-2,2'-bithiophene (PTDzBTh) and (E)-1,2-di-(3-dodecylthiophene)vinylene (PTDzTV). The TDz-containing polymers show deep highest occupied molecular orbital (HOMO) energy levels at approximately -5.50 to -5.20 eV due to the electron deficiency of the TDz unit. In addition, PTDzTV shows a relatively extended absorption wavelength (lambda(onset)=629 nm). The microstructures of the film state are primarily influenced by the interdigitation of the side chains, and PTDzTT with a rigid backbone forms a densely packed crystalline structure, as evidenced by grazing incident wide-angle X-ray scattering experiments. Polymer solar cells using the TDz polymers showed high open-circuit voltages up to 0.965 V based on the deep HOMO energy levels, and PTDzTV showed the highest power conversion efficiency of 0.529% among the polymers.

引用

页码：513 / 521

页数：9

共 38 条

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