Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/145125
Title: High throughput discovery of effective metal doping in FeVO4 for photoelectrochemical water splitting
Authors: Nguyen, Thi Hiep
Zhang, Mengyuan
Septina, Wilman
Ahmed, Mahmoud Gamal
Tay, Ying Fan
Abdi, Fatwa F.
Wong, Lydia Helena
Keywords: Science
Issue Date: 2020
Source: Nguyen, T. H., Zhang, M., Septina, W., Ahmed, M. G., Tay, Y. F., Abdi, F. F., & Wong, L. H. (2020). High throughput discovery of effective metal doping in FeVO4 for photoelectrochemical water splitting. Solar RRL, 4(12), 2000437-. doi:10.1002/solr.202000437
Journal: Solar RRL
Abstract: FeVO4 is a potential photoanode candidate with favorable bandgap energy for absorbing visible light in the solar spectrum. However, the achieved photocurrents are still much lower than the theoretical photocurrent due to poor bulk carrier separation efficiency. Herein, the aim is to improve FeVO4 charge transport properties by searching for suitable metal doping using combinatorial methods. Thin‐film FeVO4 libraries with different doping ratios of Zn, Ni, Cr, Mo, and W are fabricated on fluorine doped tin oxide substrates using combinatorial inkjet printing and their photoelectrochemical properties screened using photoscanning droplet cell. Mo and W doping show higher current density compared with undoped FeVO4; whereas the photocurrent decreases for Ni‐ and Zn‐doped samples. The best photocurrent is achieved with 7% doping ratio of Cr. Cr is discovered as a promising dopant for the first time, which is more effective than reported Mo or W for FeVO4 photoanode. The replacement of Cr3+ to Fe3+ in FeVO4 crystal lattice helps to mainly improve the catalytic activity for charge transfer, which results in the enhancement of photoresponse of the FeVO4 photoanode.
URI: https://hdl.handle.net/10356/145125
ISSN: 2367-198X
DOI: 10.1002/solr.202000437
Rights: This is the accepted version of the following article: Nguyen, T. H., Zhang, M., Septina, W., Ahmed, M. G., Tay, Y. F., Abdi, F. F., & Wong, L. H. (2020). High throughput discovery of effective metal doping in FeVO4 for photoelectrochemical water splitting. Solar RRL, 4(12), 2000437-. doi:10.1002/solr.202000437, which has been published in final form at https://doi.org/10.1002/solr.202000437. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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