Oligothiophene-multifullerene linkage molecules as high performance photovoltaic materials

被引：16

作者：

Negishi, N

Takimiya, K

Otsubo, T

Harima, Y

Aso, Y ^{[1
]}

机构：

[1] Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima 7398527, Japan

[2] Osaka Univ, Japan Sci & Technol Corp, CREST, Inst Sci & Ind Res, Ibaraki 5670047, Japan

来源：

SYNTHETIC METALS | 2005年 / 152卷 / 1-3期

关键词：

polythiophene and derivative; fullerenes and derivatives; solar cells; amorphous thin films; photoconductivity;

D O I：

10.1016/j.synthmet.2005.07.238

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel long oligothiophenes incorporated with four fullerenes (2C(60)-16T-2C(60) and 2C(60)-24T-2C(60)) have been synthesized with the aim of developing good single-component photovoltaic materials. The tetracosithiophene derivative 2C(60)-24T-2C(60), despite its giant structure, is rather more tractable regarding solubility than the hexadecithiophene derivative 2C(60)-16T-2C(60). The electronic absorption and emission spectra of 2C(60)-24T-2C(60) indicated no electronic interaction in the ground state but efficient intramolecular electron transfer in the excited state. The sandwich device of the Al/2C(60)-24T-2C(60)/Au structure showed a marked photocurrent upon illumination with monochromatic light from the Al side. The incident-photon to converted-electron ratio (IPCE) is 14%.

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页码：125 / 128

页数：4

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