Polytypic ZnCdSe shell layer on a ZnO nanowire array for enhanced solar cell efficiency
DC Field | Value | Language |
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dc.contributor.author | Myung, Yoon | - |
dc.contributor.author | Kang, Jun Ha | - |
dc.contributor.author | Choi, Jin Woong | - |
dc.contributor.author | Jang, Dong Myung | - |
dc.contributor.author | Park, Jeunghee | - |
dc.date.accessioned | 2021-09-07T00:04:55Z | - |
dc.date.available | 2021-09-07T00:04:55Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012 | - |
dc.identifier.issn | 0959-9428 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/109379 | - |
dc.description.abstract | Wurtzite-zinc blende (WZ-ZB) polytypic ZnxCd1-xSe layers were deposited on a ZnO nanowire array with full composition tuning by the chemical vapor transport method. As the composition tuned, three distinctive WZ-ZB polytypic structures appear. (1) At x = 0.2-0.3, the WZ and ZB domains exist separately in the inner and outer regions, respectively, forming a unique double shell structure. Their [0001](WZ) and [111](ZB) (or [100](ZB)) directions are aligned along the WZ [0001] growth direction of the ZnO nanowire. (2) At x = 0.5, these WZ and ZB domains line up along the axial direction, producing a superlattice structure. (3) When x = 0.7-0.8, unique twinned superlattice structures, which are composed of ZB twinned segments having alternating orientations along the axial [111] direction, were identified. The outer region of the shell contains the higher Cd content than the inner region. In the fabricated photoelectrochemical cells, the double shell structure (x = 0.2-0.3) produced a highest photoconversion efficiency, indicating the most effective band alignments of the Cd-rich ZB and Zn-rich WZ domains. However, the twinned superlattice structure exhibits the lowest photoconversion efficiency, probably due to the larger number of interfacial defects between the twinned segments. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | BLENDE-WURTZITE POLYTYPISM | - |
dc.subject | PHOTOELECTROCHEMICAL PROPERTIES | - |
dc.subject | HYDROGEN GENERATION | - |
dc.subject | CDSE | - |
dc.subject | SEMICONDUCTORS | - |
dc.subject | CDS/CDSE | - |
dc.subject | GROWTH | - |
dc.subject | ZNSE | - |
dc.subject | GAP | - |
dc.subject | SE | - |
dc.title | Polytypic ZnCdSe shell layer on a ZnO nanowire array for enhanced solar cell efficiency | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Jeunghee | - |
dc.identifier.doi | 10.1039/c1jm15003k | - |
dc.identifier.scopusid | 2-s2.0-84862908944 | - |
dc.identifier.wosid | 000298970700061 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY, v.22, no.5, pp.2157 - 2165 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY | - |
dc.citation.volume | 22 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2157 | - |
dc.citation.endPage | 2165 | - |
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 | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | BLENDE-WURTZITE POLYTYPISM | - |
dc.subject.keywordPlus | PHOTOELECTROCHEMICAL PROPERTIES | - |
dc.subject.keywordPlus | HYDROGEN GENERATION | - |
dc.subject.keywordPlus | CDSE | - |
dc.subject.keywordPlus | SEMICONDUCTORS | - |
dc.subject.keywordPlus | CDS/CDSE | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | ZNSE | - |
dc.subject.keywordPlus | GAP | - |
dc.subject.keywordPlus | SE | - |
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