A large interconnecting network within hybrid MEH-PPV/TiO2 nanorod photovoltaic devices
A large interconnecting network within hybrid MEH-PPV/TiO2 nanorod photovoltaic devices
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DOI:
10.1088/0957-4484/17/21/017
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发表时间:
2006-11
期刊:
影响因子:
3.5
通讯作者:
Tsung-Wei Zeng;Y. Lin;Hsi-Hsing Lo;Chun-Wei Chen;Cheng-Hsuan Chen;S. Liou;Hongrui Huang;W. Su
中科院分区:
文献类型:
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作者:
Tsung-Wei Zeng;Y. Lin;Hsi-Hsing Lo;Chun-Wei Chen;Cheng-Hsuan Chen;S. Liou;Hongrui Huang;W. Su
This is a study of hybrid photovoltaic devices based on TiO2 nanorods and poly[2-methoxy-5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV). We use TiO2 nanorods as the electron acceptors and conduction pathways. Here we describe how to develop a large interconnecting network within the photovoltaic device fabricated by inserting a layer of TiO2 nanorods between the MEH-PPV:TiO2 nanorod hybrid active layer and the aluminium electrode. The formation of a large interconnecting network provides better connectivity to the electrode, leading to a 2.5-fold improvement in external quantum efficiency as compared to the reference device without the TiO2 nanorod layer. A power conversion efficiency of 2.2% under illumination at 565 nm and a maximum external quantum efficiency of 24% at 430 nm are achieved. A power conversion efficiency of 0.49% is obtained under Air Mass 1.5 illumination.