Enhanced solar hydrogen generation of high density, high aspect ratio, coaxial InGaN/GaN multi-quantum well nanowires

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dc.contributor.authorEbaid, Mohamedko
dc.contributor.authorKang, Jin-Hoko
dc.contributor.authorLim, Seunghyukko
dc.contributor.authorHa, Jun-Seokko
dc.contributor.authorLee, June Keyko
dc.contributor.authorCho, Yong-Hoonko
dc.contributor.authorRyu, Sang-Wanko
dc.date.accessioned2015-06-29T04:46:32Z-
dc.date.available2015-06-29T04:46:32Z-
dc.date.created2014-12-26-
dc.date.created2014-12-26-
dc.date.issued2015-03-
dc.identifier.citationNANO ENERGY, v.12, pp.215 - 223-
dc.identifier.issn2211-2855-
dc.identifier.urihttp://hdl.handle.net/10203/199482-
dc.description.abstractIn an attempt to partially mimic the natural photosynthesis, a process that converts sunlight into chemical fuel, a novel InGaN/GaN multi-quantum well (MQW) nanowire heterostructures photoanode with superior surface-to-volume ratio was designed. The light harvesting medium in this nanoscale architecture is a thick MQW composed of six periods of epitaxial InGaN/GaN shells deposited coaxially on the semipolar sidewall facets of a thin GaN core nanowire. High aspect ratio and wide photoresponse extended to the visible spectrum were demonstrated from the detailed characterizations of the as-grown nanowires. The result revealed that this nanoscale photoanode can convert up to 8.6% of the illuminating light into photocurrent that can be utilized for the facile generation of hydrogen fuel with a 0.21% solar-to-hydrogen conversion efficiency, which is comparable to that of the natural photosynthesis. (C) 2014 Elsevier Ltd. All rights reserved.-
dc.languageEnglish-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectPHOTOELECTROCHEMICAL PROPERTIES-
dc.subjectWATER-
dc.subjectPHOTOANODE-
dc.subjectLIFETIME-
dc.subjectALLOYS-
dc.subjectARRAYS-
dc.subjectENERGY-
dc.subjectGAP-
dc.titleEnhanced solar hydrogen generation of high density, high aspect ratio, coaxial InGaN/GaN multi-quantum well nanowires-
dc.typeArticle-
dc.identifier.wosid000354767500025-
dc.identifier.scopusid2-s2.0-84920946248-
dc.type.rimsART-
dc.citation.volume12-
dc.citation.beginningpage215-
dc.citation.endingpage223-
dc.citation.publicationnameNANO ENERGY-
dc.identifier.doi10.1016/j.nanoen.2014.12.033-
dc.contributor.localauthorCho, Yong-Hoon-
dc.contributor.nonIdAuthorEbaid, Mohamed-
dc.contributor.nonIdAuthorKang, Jin-Ho-
dc.contributor.nonIdAuthorHa, Jun-Seok-
dc.contributor.nonIdAuthorLee, June Key-
dc.contributor.nonIdAuthorRyu, Sang-Wan-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorInGaN/GaN nanowires-
dc.subject.keywordAuthorMulti-quantum well-
dc.subject.keywordAuthorNanoscale photoanode-
dc.subject.keywordAuthorWater splitting-
dc.subject.keywordAuthorHydrogen energy-
dc.subject.keywordPlusPHOTOELECTROCHEMICAL PROPERTIES-
dc.subject.keywordPlusWATER-
dc.subject.keywordPlusPHOTOANODE-
dc.subject.keywordPlusLIFETIME-
dc.subject.keywordPlusALLOYS-
dc.subject.keywordPlusARRAYS-
dc.subject.keywordPlusENERGY-
dc.subject.keywordPlusGAP-
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