Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals

Jinjin Zhao; Peng Wang; Liyu Wei; Zhenghao Liu; Jiangbin Zhang; Huayan Si; Yaohua Mai; Xueqian Fang; Xianglin Liu; Deliang Ren

doi:10.1039/C5DT01739D

Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals†

Jinjin Zhao,*^abd Peng Wang,^ab Liyu Wei,^a Zhenghao Liu,^ac Jiangbin Zhang,^a Huayan Si,^a Yaohua Mai,^b Xueqian Fang,^a Xianglin Liu^a and Deliang Ren^ab

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* Corresponding authors

^a School of Materials Science and Engineering, Shijiazhuang Tiedao University, 17 Northeast, Second Inner Ring, Shijiazhuang, China

^b Hebei Key Lab of Optic-electronic Information and Materials, The College of Physics Science and Technology, Hebei University, Baoding 071002, China

^c State Key Lab. of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Dingxi Road 1295, Shanghai, China

^d The Key Laboratory for Health Monitoring and Control of Large Structures, Hebei province, 17 Northeast, Second Inner Ring, Shijiazhuang, China
E-mail: jinjinzhao2012@163.com
Tel: +86-311-87939458

Abstract

ZnO nanocrystals with a particle size of 20–30 nm have been synthesised for the first time using a template-free method. Chalcopyrite Cu_0.28In_1.72Se_2.72 nanocrystals (5–10 nm) were directly anchored on ZnO nanocrystals by a vacuum one-pot-nanocasting process without any long ligands. We further investigated Cu_0.28In_1.72Se_2.72 quantum dots and dye bilayer-sensitized solar cells, which exhibited power conversion efficiency of 57.4% higher than the single-dye-sensitized solar cells.

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Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals†

Abstract

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Enhanced photocurrent by the co-sensitization of ZnO with dye and CuInSe nanocrystals

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