Approaching the ultimate open circuit voltage in thiophene based single junction solar cells by applying diindenoperylene as acceptor

被引：21

作者：

Hoermann, Ulrich ^{[1
]}

Wagner, Julia ^{[1
]}

Gruber, Mark ^{[1
]}

Opitz, Andreas ^{[1
]}

Bruetting, Wolfgang ^{[1
]}

机构：

[1] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany

来源：

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS | 2011年 / 5卷 / 07期

关键词：

PHOTOVOLTAIC CELLS; ENERGY;

D O I：

10.1002/pssr.201105238

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The efficiency of a photovoltaic cell is directly proportional to its open circuit voltage. This in turn is eventually set by the donor-acceptor energy gap, i.e. the energy of the intermolecular charge-transfer state in organic solar cells. In this letter we study diindenoperylene (DIP) as a new molecular acceptor. We show that planar heterojunctions of thiophene derivatives and DIP yield extraordinarily high open circuit voltages (V(oc)) of approximately 1.2 V for poly(3-hexylthiophene) and almost 1.4 V for heat treated alpha-sexithiophene. Those values are close to the maximum V(oc) attainable for these material systems. (C) 2011 WILEY- VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：241 / 243

页数：3

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