Organic photovoltaic cells with controlled polarization sensitivity

被引：31
作者：
Awartani, Omar [1 ]
Kudenov, Michael W. [2 ]
O'Connor, Brendan T. [1 ]
机构：
[1] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA
[2] N Carolina State Univ, Dept Elect & Comp Engn, Raleigh, NC 27695 USA
来源：
APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 09期
基金：
美国国家科学基金会;
关键词：
CHARGE-TRANSPORT ANISOTROPY; SOLAR-CELLS; THIN-FILMS; REGIOREGULAR POLY(3-HEXYLTHIOPHENE); POLYMER; ALIGNMENT; ORDER;
D O I：
10.1063/1.4868041
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, we demonstrate linearly polarized organic photovoltaic cells with a well-controlled level of polarization sensitivity. The polarized devices were created through the application of a large uniaxial strain to the bulk heterojunction poly(3-hexylthiophene): Phenyl-C61-butyric acid methyl ester (P3HT: PCBM) film and printing the plastically deformed active layer onto a PEDOT:PSS and indium tin oxide coated glass substrate. The P3HT: PCBM layer is processed such that it is able to accommodate high strains (over 100%) without fracture. After printing the strained films, thermal annealing is used to optimize solar cell performance while maintaining polarization sensitivity. A dichroic ratio and short circuit current ratio of approximate to 6.1 and approximate to 1.6 were achieved, respectively. (C) 2014 AIP Publishing LLC.
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页数：4
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