Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance
Periodic fluorine-doped tin oxide inverse opals (FTO IOs) grafted with CdS nanorods (NRs) and CdSe clusters are reported for improved photoelectrochemical (PEC) performance. This hierarchical photoanode is fabricated by a combination of dip-coating, hydrothermal reaction, and chemical bath depositio...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/155261 |
| _version_ | 1826127101792616448 |
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| author | Wang, Zhiwei Nguyen, Tam Duy Yeo, Loo Pin Tan, Chiew Kei Gan, Lin Tok, Alfred Iing Yoong |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Wang, Zhiwei Nguyen, Tam Duy Yeo, Loo Pin Tan, Chiew Kei Gan, Lin Tok, Alfred Iing Yoong |
| author_sort | Wang, Zhiwei |
| collection | NTU |
| description | Periodic fluorine-doped tin oxide inverse opals (FTO IOs) grafted with CdS nanorods (NRs) and CdSe clusters are reported for improved photoelectrochemical (PEC) performance. This hierarchical photoanode is fabricated by a combination of dip-coating, hydrothermal reaction, and chemical bath deposition. The growth of 1D CdS NRs on the periodic walls of 3D FTO IOs forms a unique 3D/1D hierarchical structure, providing a sizeable specific surface area for the loading of CdSe clusters. Significantly, the periodic FTO IOs enable uniform light scattering while the abundant surrounded CdS NRs induce additional random light scattering, combining to give multiple light scattering within the complete hierarchical structure, significantly improving light-harvesting of CdS NRs and CdSe clusters. The high electron collection ability of FTO IOs and the CdS/CdSe heterojunction formation also contribute to the enhanced charge transport and separation. Due to the incorporation of these enhancement strategies in one hierarchical structure, FTO IOs/CdS NRs/CdSe clusters present an improved PEC performance. The photocurrent density of FTO IOs/CdS NRs/CdSe clusters at 1.23 V versus reversible hydrogen electrode reaches 9.2 mA cm-2 , which is 1.43 times greater than that of CdS NRs/CdSe clusters and 3.83 times of CdS NRs. |
| first_indexed | 2024-10-01T07:03:14Z |
| format | Journal Article |
| id | ntu-10356/155261 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:03:14Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1552612022-03-07T06:07:26Z Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance Wang, Zhiwei Nguyen, Tam Duy Yeo, Loo Pin Tan, Chiew Kei Gan, Lin Tok, Alfred Iing Yoong School of Materials Science and Engineering Engineering::Materials CdS Nanorods Inverse Opals Periodic fluorine-doped tin oxide inverse opals (FTO IOs) grafted with CdS nanorods (NRs) and CdSe clusters are reported for improved photoelectrochemical (PEC) performance. This hierarchical photoanode is fabricated by a combination of dip-coating, hydrothermal reaction, and chemical bath deposition. The growth of 1D CdS NRs on the periodic walls of 3D FTO IOs forms a unique 3D/1D hierarchical structure, providing a sizeable specific surface area for the loading of CdSe clusters. Significantly, the periodic FTO IOs enable uniform light scattering while the abundant surrounded CdS NRs induce additional random light scattering, combining to give multiple light scattering within the complete hierarchical structure, significantly improving light-harvesting of CdS NRs and CdSe clusters. The high electron collection ability of FTO IOs and the CdS/CdSe heterojunction formation also contribute to the enhanced charge transport and separation. Due to the incorporation of these enhancement strategies in one hierarchical structure, FTO IOs/CdS NRs/CdSe clusters present an improved PEC performance. The photocurrent density of FTO IOs/CdS NRs/CdSe clusters at 1.23 V versus reversible hydrogen electrode reaches 9.2 mA cm-2 , which is 1.43 times greater than that of CdS NRs/CdSe clusters and 3.83 times of CdS NRs. Ministry of Education (MOE) The authors would like to acknowledge funding support from the Ministry of Education, Singapore, Tier 2 Academic Research Fund (Grant No. MOE2014-T2-2-082). The authors would also like to thank Dr. Zhang Zhuo, Sun Lan, and Chen Chen for their advice and comments. 2022-03-07T06:07:25Z 2022-03-07T06:07:25Z 2020 Journal Article Wang, Z., Nguyen, T. D., Yeo, L. P., Tan, C. K., Gan, L. & Tok, A. I. Y. (2020). Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance. Small, 16(6), 1905826-. https://dx.doi.org/10.1002/smll.201905826 1613-6829 https://hdl.handle.net/10356/155261 10.1002/smll.201905826 31916682 2-s2.0-85077857019 6 16 1905826 en MOE2014-T2-2-082 Small © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved. |
| spellingShingle | Engineering::Materials CdS Nanorods Inverse Opals Wang, Zhiwei Nguyen, Tam Duy Yeo, Loo Pin Tan, Chiew Kei Gan, Lin Tok, Alfred Iing Yoong Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title | Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title_full | Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title_fullStr | Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title_full_unstemmed | Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title_short | Periodic FTO IOs/CdS NRs/CdSe clusters with superior light scattering ability for improved photoelectrochemical performance |
| title_sort | periodic fto ios cds nrs cdse clusters with superior light scattering ability for improved photoelectrochemical performance |
| topic | Engineering::Materials CdS Nanorods Inverse Opals |
| url | https://hdl.handle.net/10356/155261 |
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