Synthesis and Characterization of a Narrow-Bandgap Polymer Containing Alternating Cyclopentadithiophene and Diketo-Pyrrolo-Pyrrole Units for Solar Cell Applications

被引：68

作者：

Chen, Guan-Yu ^{[1
]}

Chiang, Chien-Ming ^{[1
]}

Kekuda, Dhananjay ^{[2
]}

Lan, Shang-Che ^{[1
]}

Chu, Chih-Wei ^{[2
,3
]}

Wei, Kung-Hwa ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[2] Acad Sinica, Res Ctr Appl Sci, Taipei 115, Taiwan

[3] Natl Chiao Tung Univ, Dept Photon, Hsinchu 300, Taiwan

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2010年 / 48卷 / 07期

关键词：

conjugated polymers; copolymerization; diketo-pyrrolo-pyrrole; heteroatom-containing polymers; solar cell; POLYFLUORENE COPOLYMERS; PHOTOVOLTAIC PROPERTIES; PHASE-SEPARATION; GAP COPOLYMERS; ENERGY-LEVELS; BENZOTHIADIAZOLE; PERFORMANCE; EFFICIENCY; OLIGOTHIOPHENE; QUINOXALINE;

D O I：

10.1002/pola.23931

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 have synthesized a narrow-bandgap conjugated polymer (PCTDPP) containing alternating cyclopentadithiophene (CT) and diketo-pyrrolo-pyrrole (DPP) units by Suzuki coupling. This PCTDPP exhibits a low band gap of 1.31 eV and a broad absorption band from 350 to 1000 nm, which allows it to absorb more available photons from sunlight. A bulk hetero-junction polymer solar cell incorporating PCTDPP and C-70 at a blend ratio of 1:3 exhibited a high short-circuit current of 10.87 mA/cm(2) and a power conversion efficiency of 2.27%. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1669-1675,2010

引用

页码：1669 / 1675

页数：7

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