DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, J.H | - |
dc.contributor.author | Jang, Ji-Wook | - |
dc.contributor.author | Jo, Yim Hyun | - |
dc.contributor.author | Abdi, Fatwa F. | - |
dc.contributor.author | Lee, Young Hye | - |
dc.contributor.author | van de Krol, Roel | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2018-10-04T05:49:12Z | - |
dc.date.available | 2018-10-04T05:49:12Z | - |
dc.date.created | 2016-12-16 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/92313 | - |
dc.description.abstract | Metal oxide semiconductors are promising photoelectrode materials for solar water splitting due to their robustness in aqueous solutions and low cost. Yet, their solar-to-hydrogen conversion efficiencies are still not high enough for practical applications. Here we present a strategy to enhance the efficiency of metal oxides, hetero-type dual photoelectrodes, in which two photoanodes of different bandgaps are connected in parallel for extended light harvesting. Thus, a photoelectrochemical device made of modified BiVO4 and alpha-Fe2O3 as dual photoanodes utilizes visible light up to 610nm for water splitting, and shows stable photocurrents of 7.0 +/- 0.2 mA cm(-2) at 1.23 V-RHE under 1 sun irradiation. A tandem cell composed with the dual photoanodes-silicon solar cell demonstrates unbiased water splitting efficiency of 7.7%. These results and concept represent a significant step forward en route to the goal of >10% efficiency required for practical solar hydrogen production. | - |
dc.language | English | - |
dc.publisher | Nature Publishing Group | - |
dc.relation.isPartOf | Nature Communications | - |
dc.title | Hetero-type dual photoanodes for unbiased solar water splitting with extended light harvesting | - |
dc.type | Article | - |
dc.identifier.doi | 10.1038/ncomms13380 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nature Communications, v.7, pp.1 - 7 | - |
dc.identifier.wosid | 000389816900001 | - |
dc.citation.endPage | 7 | - |
dc.citation.startPage | 1 | - |
dc.citation.title | Nature Communications | - |
dc.citation.volume | 7 | - |
dc.contributor.affiliatedAuthor | Kim, J.H | - |
dc.contributor.affiliatedAuthor | Lee, Young Hye | - |
dc.identifier.scopusid | 2-s2.0-85006035959 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | BIVO4 PHOTOANODES | - |
dc.subject.keywordPlus | HEMATITE PHOTOANODES | - |
dc.subject.keywordPlus | HYDROGEN-PRODUCTION | - |
dc.subject.keywordPlus | METAL-OXIDE | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | PHOTOELECTRODES | - |
dc.subject.keywordPlus | NANOSTRUCTURES | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | SILICON | - |
dc.subject.keywordPlus | BISMUTH VANADATE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
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