title: Efficient hybrid plasmonic polymer solar cells with Ag nanoparticle decorated TiO2 nanorods embedded in the active layer.
abstract: A hybrid plasmonic polymer solar cell, in which plasmonic metallic nanostructures (such as Ag, Au, and Pt nanoparticles) are embedded in the active layer, has been under intense scrutiny recently because it provides a promising new approach to enhance the efficiency of the device. We propose a brand new hybrid plasmonic nanostructure, which combines a plasmonic metallic nanostructure and one-dimensional semiconductor nanocrystals, to enhance the photocurrent of the device through a strong localized electric field and an enhanced charge transport channel. We demonstrate that when Ag nanoparticle decorated TiO2 nanorods were introduced into the active layer of polymer-fullerene based bulk heterojunction solar cells, the photocurrent significantly increased to 14.15 mA cm(-2) from 6.51 mA cm(-2) without a decrease in the open voltage; thus, the energy conversion efficiency was dramatically enhanced to 4.87% from 2.57%.
authors.affiliation: Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China. qsc@semi.ac.cn.
authors.forename: Kong
authors.initials: K
authors.lastname: Liu
authors.forename: Yu
authors.initials: Y
authors.lastname: Bi
authors.forename: Shengchun
authors.initials: S
authors.lastname: Qu
authors.forename: Furui
authors.initials: F
authors.lastname: Tan
authors.forename: Dan
authors.initials: D
authors.lastname: Chi
authors.forename: Shudi
authors.initials: S
authors.lastname: Lu
authors.forename: Yanpei
authors.initials: Y
authors.lastname: Li
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Kou
authors.forename: Zhanguo
authors.initials: Z
authors.lastname: Wang