Efficient photovoltaic device fashioned of highly aligned multilayers of electrospun TiO2 nanowire array with conjugated polymer

被引:65
作者
Shim, Hee-Sang [1 ,2 ]
Na, Seok-In [3 ]
Nam, Sang Hoon [1 ,2 ]
Ahn, Hyo-Jin [4 ]
Kim, Hae Jin [5 ]
Kim, Dong-Yu [3 ]
Kim, Won Bae [1 ,2 ]
机构
[1] GIST, Dept Mat Sci & Engn, Kwangju 500712, South Korea
[2] GIST, PIMS, Kwangju 500712, South Korea
[3] GIST, Heeger Ctr Adv Mat, Kwangju 500712, South Korea
[4] Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany
[5] Korea Basic Sci Inst, Taejon 350333, South Korea
关键词
D O I
10.1063/1.2919800
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report here a simple and easy method of fabricating arranged inorganic nanowire architecture via electrospinning method equipped with a devised collector and demonstrate hybrid photovoltaic cells that are fashioned of planar-aligned TiO2 nanowire architectures such as uniaxially aligned nanowires and multiple layers of cross-aligned nanowire arrays with poly[2-methoxy, 5-(2'-ethyl-hexyloxy)-1,4-phenylenevinylene]. The power conversion efficiency can be significantly improved by at least 70% under 1 sun condition depending on the degree of aligning TiO2 nanowire arrays through enhancing charge collection and transport rate, as well as facilitating the polymer infiltration as compared to a randomly collected TiO2 nanowire electrode. (C) 2008 American Institute of Physics.
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页数:3
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