Isostructural, Deeper Highest Occupied Molecular Orbital Analogues of Poly(3-hexylthiophene) for High-Open Circuit Voltage Organic Solar Cells

被引：59

作者：

Bronstein, Hugo ^{[1
]}

Hurhangee, Michael ^{[2
]}

Fregoso, Elisa Collado ^{[2
]}

Beatrup, Daniel ^{[2
]}

Soon, Ying W. ^{[2
]}

Huang, Zhenggang ^{[2
]}

Hadipour, Afshin ^{[3
]}

Tuladhar, Pabitra S. ^{[2
]}

Rossbauer, Stephan ^{[2
]}

Sohn, Eun-Ho ^{[4
]}

Shoaee, Safa ^{[2
]}

Dimitrov, Stoichko D. ^{[2
]}

Frost, Jarvist M. ^{[2
]}

Ashraf, Raja Shahid ^{[2
]}

Kirchartz, Thomas ^{[2
]}

Watkins, Scott E. ^{[5
]}

Song, Kigook ^{[4
]}

Anthopoulos, Thomas ^{[2
]}

Nelson, Jenny ^{[2
]}

Rand, Barry P. ^{[3
]}

Durrant, James R. ^{[2
]}

McCulloch, Iain ^{[2
]}

机构：

[1] UCL, Dept Chem, London WC1H 0AJ, England

[2] Univ London Imperial Coll Sci Technol & Med, Ctr Plast Elect, London SW7 2AZ, England

[3] IMEC, B-3001 Louvain, Belgium

[4] Kyung Hee Univ, Yongin 446701, Gyeonggi Do, South Korea

[5] CSIRO Mat Sci & Engn, Melbourne, Vic 3169, Australia

来源：

CHEMISTRY OF MATERIALS | 2013年 / 25卷 / 21期

关键词：

solar cell; P3HT; conjugated polymer; OPV; CATALYST-TRANSFER POLYCONDENSATION; CHARGE PHOTOGENERATION; SELF-ORGANIZATION; POLYMER; EFFICIENCY; PERFORMANCE; THIAZOLE; DONOR; CHAIN; MORPHOLOGY;

D O I：

10.1021/cm4022563

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present the synthesis and characterization of two novel thiazole-containing conjugated polymers (PTTTz and PTTz) that are isostnictural to poly(3-hexylthiophene) (P3HT). The novel materials demonstrate optical and morphological properties almost identical to those of P3HT but with HOMO and LUMO levels that are up to 0.45 eV deeper. An intramolecular planarizing nitrogen-sulfur non-bonding interaction is observed, and its magnitude and origin are discussed. Both materials demonstrate significantly greater open circuit voltages than P3HT in bulk heterojunction solar cells. PTTTz is shown to be an extremely versatile donor polymer that can be used with a wide variety of fullerene acceptors with device efficiencies of up to 4.5%. It is anticipated that this material could be used as a high-open circuit voltage alternative to P3HT in organic solar cells.

引用

页码：4239 / 4249

页数：11

共 66 条

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