Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure
Bridged ZnO nanorod arrays on a V-grooved Si(100) substrate were used as the photoanode of a photoelectrochemical (PEC) cell for water splitting. Photolithography followed by reactive ion etching was employed to create a V-grooved structure on a Si substrate. ZnO nanorod arrays were grown via a hydr...
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| Format: | Journal Article |
| Language: | English |
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2013
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| Online Access: | https://hdl.handle.net/10356/96653 http://hdl.handle.net/10220/9975 |
| _version_ | 1826111999368495104 |
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| author | Wei, Yuefan Ke, Lin Leong, Eunice Sok Ping Liu, Hong Liew, Laura-Lynn Teng, Jing Hua Du, Hejun Sun, Xiaowei |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Wei, Yuefan Ke, Lin Leong, Eunice Sok Ping Liu, Hong Liew, Laura-Lynn Teng, Jing Hua Du, Hejun Sun, Xiaowei |
| author_sort | Wei, Yuefan |
| collection | NTU |
| description | Bridged ZnO nanorod arrays on a V-grooved Si(100) substrate were used as the photoanode of a photoelectrochemical (PEC) cell for water splitting. Photolithography followed by reactive ion etching was employed to create a V-grooved structure on a Si substrate. ZnO nanorod arrays were grown via a hydrothermal method. The light trapping and PEC properties are greatly enhanced using the bridged ZnO nanorod arrays on a V-grooved Si substrate compared with those on a flat one. Increased short circuit photocurrent density (JSC, 0.73 mA cm−2) and half-life time (1500 s) are achieved. This improved JSC and half-life time are 4 times and 10 times, respectively, higher than those of the ZnO nanorod arrays grown on a flat substrate. The overall PEC cell performance improvement for the V-groove grown ZnO array is attributed to the reduced light reflection and enhanced light trapping effect. Moreover, V-groove ZnO showed stronger adhesion between ZnO nanorod arrays and the substrate. |
| first_indexed | 2024-10-01T03:00:04Z |
| format | Journal Article |
| id | ntu-10356/96653 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:00:04Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/966532020-03-07T13:22:17Z Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure Wei, Yuefan Ke, Lin Leong, Eunice Sok Ping Liu, Hong Liew, Laura-Lynn Teng, Jing Hua Du, Hejun Sun, Xiaowei School of Electrical and Electronic Engineering School of Mechanical and Aerospace Engineering DRNTU::Engineering::Electrical and electronic engineering Bridged ZnO nanorod arrays on a V-grooved Si(100) substrate were used as the photoanode of a photoelectrochemical (PEC) cell for water splitting. Photolithography followed by reactive ion etching was employed to create a V-grooved structure on a Si substrate. ZnO nanorod arrays were grown via a hydrothermal method. The light trapping and PEC properties are greatly enhanced using the bridged ZnO nanorod arrays on a V-grooved Si substrate compared with those on a flat one. Increased short circuit photocurrent density (JSC, 0.73 mA cm−2) and half-life time (1500 s) are achieved. This improved JSC and half-life time are 4 times and 10 times, respectively, higher than those of the ZnO nanorod arrays grown on a flat substrate. The overall PEC cell performance improvement for the V-groove grown ZnO array is attributed to the reduced light reflection and enhanced light trapping effect. Moreover, V-groove ZnO showed stronger adhesion between ZnO nanorod arrays and the substrate. Accepted Version 2013-05-22T07:34:06Z 2019-12-06T19:33:30Z 2013-05-22T07:34:06Z 2019-12-06T19:33:30Z 2012 2012 Journal Article Wei, Y., Ke, L., Leong, E. S. P., Liu, H., Liew, L. L., Teng, J. H., et al. (2012). Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure. Nanotechnology, 23(36). https://hdl.handle.net/10356/96653 http://hdl.handle.net/10220/9975 10.1088/0957-4484/23/36/365704 167663 en Nanotechnology © 2012 IOP Publishing Ltd. This is the author created version of a work that has been peer reviewed and accepted for publication by Nanotechnology, IOP Publishing Ltd. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1088/0957-4484/23/36/365704]. application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Wei, Yuefan Ke, Lin Leong, Eunice Sok Ping Liu, Hong Liew, Laura-Lynn Teng, Jing Hua Du, Hejun Sun, Xiaowei Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title | Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title_full | Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title_fullStr | Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title_full_unstemmed | Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title_short | Enhanced photoelectrochemical performance of bridged ZnO nanorod arrays grown on V-grooved structure |
| title_sort | enhanced photoelectrochemical performance of bridged zno nanorod arrays grown on v grooved structure |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/96653 http://hdl.handle.net/10220/9975 |
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