Synthesis and Characterization of Naphtho[2,1-b:3,4-b′]dithiophene-Based Polymers with Extended π-Conjugation Systems for Use in Bulk Heterojunction Polymer Solar Cells

被引：13

作者：

Kim, Yu Jin ^{[1
]}

Lee, Yun-Ji ^{[2
,3
]}

Jang, Jae-Wan ^{[2
,3
]}

Cha, Hyojung ^{[1
]}

Kim, Yun-Hi ^{[4
,5
]}

Kwon, Soon-Ki ^{[2
,3
]}

Park, Chan Eon ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Chem Engn, POSTECH Organ Elect Lab, Pohang 790784, South Korea

[2] Gyeongsang Natl Univ, Sch Mat Sci & Engn, Jinju 660701, South Korea

[3] Gyeongsang Natl Univ, Res Inst Green Energy Convergence Technol REGET, Jinju 660701, South Korea

[4] Gyeongsang Natl Univ, Dept Chem, Jinju 660701, South Korea

[5] Gyeongsang Natl Univ, Res Inst Nat Sci, Jinju 660701, South Korea

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2013年 / 51卷 / 22期

基金：

新加坡国家研究基金会;

关键词：

bulk heterojunction solar cells; conducting polymers; conjugated polymers; extended; -conjugation; high-performance polymers; morphology; naphthodithiophene; organic solar cells; PHOTOVOLTAIC PROPERTIES; TANDEM POLYMER; PERFORMANCE; DERIVATIVES; TRANSISTOR; EFFICIENCY; POSITIONS; MOLECULE; DESIGN;

D O I：

10.1002/pola.26908

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two novel polymeric semiconductor materials based on naphtho[2,1-b:3,4-b']dithiophene (NDT), PNDT-TTT and PNDT-TET, were designed and synthesized. These synthesized polymers were tested in bulk heterojunction solar cells as blends with the acceptor [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). PNDT-TTT contained tri-thiophene units, and PNDT-TET contained bi-thiophene units coupled by ethylenic linkages. Comparison to the properties of PNDT-T, which contained single thiophene units, these polymers exhibit red-shifted absorption spectra as a result of the enhanced conjugation lengths. These effects resulted in high short circuit currents (J(SC)) in the organic solar cells. The PNDT-TET- and PNDT-TTT-based devices exhibited considerably better photovoltaic performances, with power conversion efficiencies of 3.5 and 3.3%, respectively, compared to the PNDT-T-based device (1.3%). (c) 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2013, 51, 4742-4751

引用

页码：4742 / 4751

页数：10

共 40 条

[1]

[Anonymous], ADV FUNCT MAT

[2]

[Anonymous], APPL PHYS LETT

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