標題: An Organic Hole Transport Layer Enhances the Performance of Colloidal PbSe Quantum Dot Photovoltaic Devices
作者: Kuo, Chih-Yin
Su, Ming-Shin
Hsu, Yu-Chien
Lin, Hui-Ni
Wei, Kung-Hwa
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 22-Oct-2010
摘要: A thin poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hole transport layer enhances the AM1.5 power conversion efficiency of a PbSe quantum dot (QD)-containing photovoltaic device to 2.4%, from 1.5% for a standard PbSe QD device, a relative increase of 60%. Synchrotron X-ray reflectivity measurements reveal that the roughness of the interfaces between the various layers decreases dramatically in the presence of the PEDOT: PSS layer. In addition, the device life time under continuous simulated AM1.5 irradiation (100 mW cm(-2)), measured in terms of the time required to reach 80% of the normalized efficiency, for the PbSe QD device incorporating the PEDOT:PSS hole transport layer is six times longer than that of the standard PbSe QD device.
URI: http://dx.doi.org/10.1002/adfm.201001047
http://hdl.handle.net/11536/32057
ISSN: 1616-301X
DOI: 10.1002/adfm.201001047
期刊: ADVANCED FUNCTIONAL MATERIALS
Volume: 20
Issue: 20
起始頁: 3555
結束頁: 3560
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