Tuning Energy Levels of Low Bandgap Semi-Random Two Acceptor Copolymers

被引：70

作者：

Zhou, Jinjun ^{[1
]}

Xie, Sibai ^{[1
]}

Amond, Emily F. ^{[1
]}

Becker, Matthew L. ^{[1
,2
]}

机构：

[1] Univ Akron, Dept Polymer Sci, Akron, OH 44325 USA

[2] Austen Bioinnovat Inst Akron, Ctr Biomat Med, Akron, OH 44308 USA

来源：

MACROMOLECULES | 2013年 / 46卷 / 09期

关键词：

CONJUGATED POLYMERS; OPTOELECTRONIC PROPERTIES; GAP POLYMERS; SOLAR-CELLS; UNITS; PERFORMANCE; SEMICONDUCTORS; PHOTOVOLTAICS; THIOPHENES; TRANSPORT;

D O I：

10.1021/ma400531v

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 series of low bandgap semi-random copolymers incorporating various ratios of two acceptor units-thienothiadiazole and benzothiadiazole-were synthesized by Pd-catalyzed Stille coupling. The polymer films exhibited broad and intense absorption spectra, covering the spectral range from 350 nm up to 1240 nm. The optical bandgaps and HOMO levels of the polymers were calculated from ultraviolet visible spectroscopy and cyclic voltammetry measurements, respectively. By changing the ratio of the two acceptor monomers, the HOMO levels of the polymers were tuned from -4.42 to -5.28 eV and the optical bandgaps were varied from 1.00 to 1.14 eV. The results indicate our approach could be applied to the design and preparation of conjugated polymers with specifically desired energy levels and bandgaps for photovoltaic applications.

引用

收藏

页码：3391 / 3394

页数：4

相关论文

共 43 条

[1] Recent progress in the design of narrow bandgap conjugated polymers for high-efficiency organic solar cells [J].

Bian, Linyi ;

Zhu, Enwei ;

Tang, Jian ;

Tang, Weihua ;

Zhang, Fujun .

PROGRESS IN POLYMER SCIENCE, 2012, 37 (09) :1292-1331

[2] Optical and electronic properties of fluorene/thiophene/benzothiadiazole pseudorandom copolymers for photovoltaic applications [J].

Bonoldi, Lucia ;

Calabrese, Anna ;

Pellegrino, Andrea ;

Perin, Nicola ;

Po, Riccardo ;

Spera, Silvia ;

Tacca, Alessandra .

JOURNAL OF MATERIALS SCIENCE, 2011, 46 (11) :3960-3968

[3] Processable Low-Bandgap Polymers for Photovoltaic Applications [J].

Boudreault, Pierre-Luc T. ;

Najari, Ahmed ;

Leclerc, Mario .

CHEMISTRY OF MATERIALS, 2011, 23 (03) :456-469

[4] Low band gap polymers for organic photovoltaics [J].

Bundgaard, Eva ;

Krebs, Frederik C. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (11) :954-985

[5] Influence of the Acceptor Composition on Physical Properties and Solar Cell Performance in Semi-Random Two-Acceptor Copolymers [J].

Burkhart, Beate ;

Khlyabich, Petr P. ;

Thompson, Barry C. .

ACS MACRO LETTERS, 2012, 1 (06) :660-666

[6] Influence of the Ethylhexyl Side-Chain Content on the Open-Circuit Voltage in rr-Poly(3-hexylthiophene-co-3-(2-ethylhexyl)thiophene) Copolymers [J].

Burkhart, Beate ;

Khlyabich, Petr P. ;

Thompson, Barry C. .

MACROMOLECULES, 2012, 45 (09) :3740-3748

[7] "Semi-Random" Multichromophoric rr-P3HT Analogues for Solar Photon Harvesting [J].

Burkhart, Beate ;

Khlyabich, Petr P. ;

Canak, Tuba Cakir ;

LaJoie, Travis W. ;

Thompson, Barry C. .

MACROMOLECULES, 2011, 44 (06) :1242-1246

[8] Band structure engineering for low band gap polymers containing thienopyrazine [J].

Chao, Chi-Yang ;

Chao, Chung-Hsiang ;

Chen, Lung-Pin ;

Hung, Ying-Chieh ;

Lin, Shiang-Tai ;

Su, Wei-Fang ;

Lin, Ching-Fuh .

JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (15) :7331-7341

[9] Synthesis and Characterization of Bridged Bithiophene-Based Conjugated Polymers for Photovoltaic Applications: Acceptor Strength and Ternary Blends [J].

Chen, Chiu-Hsiang ;

Hsieh, Chao-Hsiang ;

Dubosc, Martin ;

Cheng, Yen-Ju ;

Su, Chain-Shu .

MACROMOLECULES, 2010, 43 (02) :697-708

[10] How the structural deviations on the backbone of conjugated polymers influence their optoelectronic properties and photovoltaic performance [J].

Chochos, Christos L. ;

Choulis, Stelios A. .

PROGRESS IN POLYMER SCIENCE, 2011, 36 (10) :1326-1414

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