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Open Access Nano Express

Nanostructured Al-ZnO/CdSe/Cu2O ETA solar cells on Al-ZnO film/quartz glass templates

Xianghu Wang1*, Rongbin Li1 and Donghua Fan2

Author Affiliations

1 School of Mechanical Engineering, Shanghai Dianji University, 1201 Jiang Chuan Road, Shanghai, 200245, People's Republic of China

2 Institute of Functional Materials Research and Department of Mathematics and Physics, Wuyi University, Jiangmen, 529020, People's Republic of China

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Nanoscale Research Letters 2011, 6:614  doi:10.1186/1556-276X-6-614

Published: 4 December 2011

Abstract

The quartz/Al-ZnO film/nanostructured Al-ZnO/CdSe/Cu2O extremely thin absorber solar cell has been successfully realized. The Al-doped ZnO one-dimensional nanostructures on quartz templates covered by a sputtering Al-doped ZnO film was used as the n-type electrode. A 19- to 35-nm-thin layer of CdSe absorber was deposited by radio frequency magnetron sputtering, coating the ZnO nanostructures. The voids between the Al-ZnO/CdSe nanostructures were filled with p-type Cu2O, and therefore, the entire assembly formed a p-i-n junction. The cell shows the energy conversion efficiency as high as 3.16%, which is an interesting option for developing new solar cell devices.

PACS: 88.40.jp; 73.40.Lq; 73.50.Pz.

Keywords:
extremely thin absorber; oxide semiconducting material; window material for solar cell