Bulk heterojunction organic photovoltaic devices based on low band gap small molecule BTD-TNP and perylene-anthracene diimide

被引：53

作者：

Sharma, G. D. ^{[1
,3
]}

Balraju, P. ^{[1
]}

Mikroyannidis, John A. ^{[2
]}

Stylianakis, Minas M. ^{[2
]}

机构：

[1] Jai Narain Vyas Univ, Dept Phys, Mol Elect & Optoelect Device Lab, Jodhpur 342005, Rajasthan, India

[2] Univ Patras, Dept Chem, Chem Technol Lab, GR-26500 Patras, Greece

[3] Jaipur Engn Coll, Jaipur, Rajasthan, India

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2009年 / 93卷 / 11期

关键词：

Organic photovoltaic device; Bulk heterojunction; Small molecule; Benzothiadiazole; Perylene diimide; POLYMER SOLAR-CELLS; PERFORMANCE; MORPHOLOGY; COPOLYMER; MOBILITY;

D O I：

10.1016/j.solmat.2009.08.003

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Bulk heterojunction (BHJ) photovoltaic devices were fabricated from the blends of compounds BTD-TNP (electron donor) and P-A (electron acceptor) and characterized through current-voltage measurements under illumination. Compound BTD-TNP contains dithyenyl-benzothiadiazole central unit and cyanovinylene-p-nitrophenyl terminal moieties. Compound P-A is a symmetrical perylene-anthracene diimide with tert-butylphenoxy side groups at the 1,7-bay positions. Both the absorption spectra and the incident photon to the current conversion efficiency (IPCE) spectra of the device were extended up to 800 nm. A power conversion efficiency of 2.85% with short-circuit current density of 6.8 mA/cm(2), open-circuit voltage of 0.88V and fill factor of 0.47 were obtained. It was found that the hole and electron mobility in the active layer were about 4.6 x 10(-5) and 8.8 x 10(-4) cm(2)/Vs, respectively, which indicates the fairly balanced charge transport in the device. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：2025 / 2028

页数：4

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