Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L. , Zhang, W. and Lee, C.-S. (2011) Arrays of ZnO/ZnxCd1- xse nanocables: Band gap engineering and photovoltaic applications. Nano Letters, 11(10), pp. 4138-4143. (doi: 10.1021/nl201934k) (PMID:21875102)
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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/ZnxCd1–xSe nanocable arrays are further demonstrated to be promising photoelectrodes for photoelectrochemical solar cells, giving a maximum power conversion efficiency up to 4.74%.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Vellaisamy, Professor Roy |
| Authors: | Xu, J., Yang, X., Wang, H., Chen, X., Luan, C., Xu, Z., Lu, Z., Roy, V.A.L., Zhang, W., and Lee, C.-S. |
| College/School: | College of Science and Engineering > School of Engineering |
| Journal Name: | Nano Letters |
| Publisher: | American Chemical Society |
| ISSN: | 1530-6984 |
| ISSN (Online): | 1530-6992 |
| Published Online: | 29 August 2011 |
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