The formation of Z-scheme CdS/CdO nanorods on FTO substrates: The shell thickness effects on the flat band potentials
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cho, Ki-Hyun | - |
dc.contributor.author | Sung, Yun-Mo | - |
dc.date.accessioned | 2021-09-03T05:31:57Z | - |
dc.date.available | 2021-09-03T05:31:57Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2017-06 | - |
dc.identifier.issn | 2211-2855 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/83264 | - |
dc.description.abstract | CdS/CdO core/shell nanorod photoelectrochemical electrodes were prepared and the working mechanism of n-/n-type Z-scheme band structures is proposed based upon the shell thickness variation. A mild solution chemistry enabled the vertical growth of CdS nanorods on the low-cost conductive glass substrates. The thermal decomposition of Cd(NO3)(2)center dot 4H(2)O coated on the CdS nanorod surface successfully introduced CdS/CdO core/shell nanorod electrodes. The formation of CdO shell on CdS nanorods led to the improved photoelectrochemical performance through constructing the n-/n-type Z-scheme band structure. From the Mott-Schottky and the open-circuit potential analyses, the variation in the flat band potentials were monitored to understand the change in the photovoltage of the n-/n-type Z-scheme nanorod electrodes regarding the CdO shell thickness. The core/shell nanorod electrodes having the shell thickness equal to or smaller than the space charge region width exhibited higher photovoltages than those of others. This could be the outcome of the effective charge separation coming from the absence of the bulk region in which the electron transport is disturbed by boundaries. Finally, the optimum CdO shell thickness of CdS/CdO electrodes was determined to be similar to 2 nm and their corresponding photocurrent density was measured to be similar to 4.35 mA/cm(2), which is a similar to 22% increased value compared to that of bare CdS nanorod electrodes. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | NANOWIRE ARRAYS | - |
dc.subject | SEMICONDUCTOR PHOTOELECTRODES | - |
dc.subject | HYDROGEN GENERATION | - |
dc.subject | ENERGY-CONVERSION | - |
dc.subject | CDS NANOPARTICLES | - |
dc.subject | SOLAR FUELS | - |
dc.subject | WATER | - |
dc.subject | PERFORMANCE | - |
dc.subject | EFFICIENCY | - |
dc.subject | HETEROSTRUCTURE | - |
dc.title | The formation of Z-scheme CdS/CdO nanorods on FTO substrates: The shell thickness effects on the flat band potentials | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Sung, Yun-Mo | - |
dc.identifier.doi | 10.1016/j.nanoen.2017.04.037 | - |
dc.identifier.scopusid | 2-s2.0-85018488777 | - |
dc.identifier.wosid | 000402704000019 | - |
dc.identifier.bibliographicCitation | NANO ENERGY, v.36, pp.176 - 185 | - |
dc.relation.isPartOf | NANO ENERGY | - |
dc.citation.title | NANO ENERGY | - |
dc.citation.volume | 36 | - |
dc.citation.startPage | 176 | - |
dc.citation.endPage | 185 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | NANOWIRE ARRAYS | - |
dc.subject.keywordPlus | SEMICONDUCTOR PHOTOELECTRODES | - |
dc.subject.keywordPlus | HYDROGEN GENERATION | - |
dc.subject.keywordPlus | ENERGY-CONVERSION | - |
dc.subject.keywordPlus | CDS NANOPARTICLES | - |
dc.subject.keywordPlus | SOLAR FUELS | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | HETEROSTRUCTURE | - |
dc.subject.keywordAuthor | Hydrogen | - |
dc.subject.keywordAuthor | Z-scheme | - |
dc.subject.keywordAuthor | Core/shell nanorods | - |
dc.subject.keywordAuthor | PEC cell | - |
dc.subject.keywordAuthor | Water splitting | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.