Investigation of polymer/inorganic hybrid photovoltaic device using quantum dots as the interface modifier
Investigation of polymer/inorganic hybrid photovoltaic device using quantum dots as the interface modifier
复制标题
使用量子点作为界面改性剂的聚合物/无机混合光伏器件的研究
DOI:
10.1007/s00339-013-8128-y
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发表时间:
2014-07
期刊:
影响因子:
--
通讯作者:
汪竞阳
中科院分区:
文献类型:
--
作者:
汪竞阳
CdS quantum dots (QDs) were introduced as an interface modifier in the poly(3-hexylthiophene) (P3HT)/TiO2nanorod arrays hybrid photovoltaic device. The presence of CdS QDs interlayer was found to provide enhanced light absorption, increased interfacial recombination resistance at the P3HT/TiO2interfaces, thus leading to a lower recombination rate of the electrons due to the stepwise structure of band edge in P3HT/CdS/TiO2, which accounts for the observed enhanced photocurrent and photovoltage of the hybrid solar cells. The optimized performance was achieved in P3HT/CdS/TiO2hybrid solar cells after deposition of CdS QDs for 10 cycles, with a power conversion efficiency of 0.57 %, which is nearly ten times higher than that of P3HT/TiO2. The findings indicate that inorganic semiconductor quantum dots provide effective means to improve the performance of polymer/TiO2hybrid solar cells.
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