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: | 22-十月-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/11536/150146 |
ISSN: | 1616-301X |
DOI: | 10.1002/adfm.201001047 |
期刊: | ADVANCED FUNCTIONAL MATERIALS |
Volume: | 20 |
起始頁: | 3555 |
結束頁: | 3560 |
顯示於類別: | 期刊論文 |