Arrays of ZnO/ZnxCd1- xse nanocables : Band gap engineering and photovoltaic applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Jun Xu
  • Xia Yang
  • Hongkang Wang
  • Xue Chen
  • Chunyan Luan
  • Zongxiang Xu
  • Zhenzhen Lu

Detail(s)

Original languageEnglish
Pages (from-to)4138-4143
Journal / PublicationNano Letters
Volume11
Issue number10
Publication statusPublished - 12 Oct 2011

Abstract

Arrays of ZnO/ZnxCd1-xSe (0 ≤x ≤1) core/shell nanocables with shells of tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects of stoichiometry and type II heterojunction, optical absorptions of the nanocable arrays can be controllably tuned to cover almost the entire visible spectrum. Lattice parameters and band gaps of the ternary ZnxCd1-xSe shells were found to have respectively linear and quadratic relationships with the Zn content (x). These ZnO/Zn xCd1-xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74%. © 2011 American Chemical Society.

Research Area(s)

  • band gap engineering, CdSe, solar cells, type II, Vegard's law, ZnSe

Citation Format(s)

Arrays of ZnO/ZnxCd1- xse nanocables : Band gap engineering and photovoltaic applications. / Xu, Jun; Yang, Xia; Wang, Hongkang; Chen, Xue; Luan, Chunyan; Xu, Zongxiang; Lu, Zhenzhen; Roy, V. A L; Zhang, Wenjun; Lee, Chun-Sing.

In: Nano Letters, Vol. 11, No. 10, 12.10.2011, p. 4138-4143.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review