Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting
Solar water splitting has received increasing attentions in recent years as a very promising strategy to produce clean hydrogen fuels. This paper presents a novel design consisting of a sandwich structure of Fe2O3/Au/Fe2O3 as the photoanode for photoelectrochemical (PEC) water splitting. The tandem...
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| Format: | Conference Paper |
| Language: | English |
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2014
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| Online Access: | https://hdl.handle.net/10356/95752 http://hdl.handle.net/10220/18730 http://avestia.com/ICEPR2013_Proceedings/list_of_papers.html |
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| author | Wang, Zheng Boey, Freddy Yin Chiang Loo, Say Chye Joachim Xue, Can |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Wang, Zheng Boey, Freddy Yin Chiang Loo, Say Chye Joachim Xue, Can |
| author_sort | Wang, Zheng |
| collection | NTU |
| description | Solar water splitting has received increasing attentions in recent years as a very promising strategy to produce clean hydrogen fuels. This paper presents a novel design consisting of a sandwich structure of Fe2O3/Au/Fe2O3 as the photoanode for photoelectrochemical (PEC) water splitting. The tandem layers are constructed by spin-coating of pre-synthesized Fe2O3 nanoparticles and sputtering of the gold intermediate layer. PEC testing shows that the sandwich structure exhibits much higher photocurrent density as compared to the Fe2O3 double-layer anode. Further studies indicate that the Au intermediate layer can contribute in electron transfer as well as light harvesting due to its plasmonic excitation. The mechanism of the photocurrent enhancement is proposed and such sandwich structure may be applied to other semiconductors to improve PEC performance. |
| first_indexed | 2024-10-01T05:12:11Z |
| format | Conference Paper |
| id | ntu-10356/95752 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:12:11Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | ntu-10356/957522023-07-08T05:40:58Z Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting Wang, Zheng Boey, Freddy Yin Chiang Loo, Say Chye Joachim Xue, Can School of Materials Science & Engineering International Conference on Environmental Pollution and Remediation (3rd : 2013 : Toronto, Canada) DRNTU::Engineering::Materials Solar water splitting has received increasing attentions in recent years as a very promising strategy to produce clean hydrogen fuels. This paper presents a novel design consisting of a sandwich structure of Fe2O3/Au/Fe2O3 as the photoanode for photoelectrochemical (PEC) water splitting. The tandem layers are constructed by spin-coating of pre-synthesized Fe2O3 nanoparticles and sputtering of the gold intermediate layer. PEC testing shows that the sandwich structure exhibits much higher photocurrent density as compared to the Fe2O3 double-layer anode. Further studies indicate that the Au intermediate layer can contribute in electron transfer as well as light harvesting due to its plasmonic excitation. The mechanism of the photocurrent enhancement is proposed and such sandwich structure may be applied to other semiconductors to improve PEC performance. NRF (Natl Research Foundation, S’pore) MOE (Min. of Education, S’pore) Published version 2014-01-28T04:59:18Z 2019-12-06T19:20:48Z 2014-01-28T04:59:18Z 2019-12-06T19:20:48Z 2013 2013 Conference Paper Wang, Z., Boey, F. Y. C., Loo, S. C. J. & Xue, C. (2013). Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting. 3rd International Conference on Environmental Pollution and Remediation, 219-. https://hdl.handle.net/10356/95752 http://hdl.handle.net/10220/18730 http://avestia.com/ICEPR2013_Proceedings/list_of_papers.html 172281 en © 2013 International ASET Inc. This paper was published in 3rd International Conference on Environmental Pollution and Remediation and is made available as an electronic reprint (preprint) with permission of International ASET Inc. The paper can be found at the following official URL: [http://avestia.com/ICEPR2013_Proceedings/list_of_papers.html]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials Wang, Zheng Boey, Freddy Yin Chiang Loo, Say Chye Joachim Xue, Can Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title | Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title_full | Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title_fullStr | Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title_full_unstemmed | Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title_short | Sandwich Fe2O3/Au/Fe2O3 photoanodes for enhanced photoelectrochemical water splitting |
| title_sort | sandwich fe2o3 au fe2o3 photoanodes for enhanced photoelectrochemical water splitting |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/95752 http://hdl.handle.net/10220/18730 http://avestia.com/ICEPR2013_Proceedings/list_of_papers.html |
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