Title of article :
Photoluminescence enhancement and atmosphere-dependent photovoltaic performance in CdS nanorod arrays/MEH-PPV hybrid
Author/Authors :
Nan، نويسنده , , Ya-Xiong and Chen، نويسنده , , Fei and Yang، نويسنده , , Li-Gong and Jiang، نويسنده , , Xiao-Xia and Zuo، نويسنده , , Lijian and Zhang، نويسنده , , Jing-Lin and Yan، نويسنده , , Quan-Xiang and Shi، نويسنده , , Minmin and Chen، نويسنده , , Hong-Zheng، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Abstract :
Performance improvement of CdS nanorod arrays (NRA)/poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylene vinylene] (MEH-PPV) hybrid solar cells (HSCs) during the storage in ambient atmosphere has been demonstrated. An unusual photoluminescence (PL) enhancement was observed after MEH-PPV hybridizing with CdS NRA due to the abundance of S-vacancy-induced interface electron traps in CdS NRA, which was confirmed by temperature-dependent PL and charge transport analysis. By investigating on the time-resolved photoluminescence (TRPL) and current–voltage characteristics, we demonstrated that the performance improvement of CdS NRA/MEH-PPV HSCs was contributed to the co-effects of interface electron trap–oxygen interaction and MEH-PPV–oxygen interaction, and the contribution ratio between these two interactions was varied over time in air.
Keywords :
Photoluminescence enhancement , stability , Interface electron traps , Atmosphere-dependent performance , Hybrid solar cells
Journal title :
Solar Energy Materials and Solar Cells
Journal title :
Solar Energy Materials and Solar Cells
