BiVO₄/WO₃/SnO₂ Double-Heterojunction Photoanode with Enhanced Charge Separation and Visible-Transparency for Bias-Free Solar Water-Splitting with a Perovskite Solar Cell
DC Field | Value | Language |
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dc.contributor.author | Baek, Ji Hyun | - |
dc.contributor.author | Kim, Byeong Jo | - |
dc.contributor.author | Han, Gill Sang | - |
dc.contributor.author | Hwang, Sung Won | - |
dc.contributor.author | Kim, Dong Rip | - |
dc.contributor.author | Cho, In Sun | - |
dc.contributor.author | Jung, Hyun Suk | - |
dc.date.accessioned | 2021-08-02T15:52:10Z | - |
dc.date.available | 2021-08-02T15:52:10Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2017-01 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/21254 | - |
dc.description.abstract | Coupling dissimilar oxides in heterostruetures allows the engineering of interfacial, optical, charge separation/transport and transfer properties of photoanodes for photo electrochemical (PEC) water splitting. Here, we demonstrate a double-heterojunction concept based on a BiVO₄/WO₃/SnO₂ triple-layer planar heterojunction (TPH) photoanode, which shows simultaneous improvements in the charge transport (similar to 93% at 1.23 V vs RHE) and transmittance at-longer wavelengths (>500 nm). The TPH photoanode was prepared by a facile solution method: a porous SnO₂ film was, first deposited on a fluorine-doped tin oxide (FTO)/glass-substrate followed by WO₃ deposition, leading to the formation of a double layer of dense WO₃ and a WO₃/SnO₂ mixture at the bottom. Subsequently, a BiVO₄ nanoparticle film was deposited by spin coating. Importantly, the WO₃/(WO₃+SnO₂) composite bottom layer forms a disordered heterojunction enabling intimate contact, lower interfacial resistance, and efficient charge transport/transfer. In addition, the top BiVO₄/WO₃ heterojunction layer improves light absorption and charge separation. The resultant TPH photoanode shows greatly improved internal quantum efficiency (similar to 80%) and PEC water oxidation performance, (similar to 3.1 mA/cm(2) at 1.23 V vs RHE) compared to the previously reported BiVO₄/WO₃ photoanodes. The PEC performance was , further improved by a reactive-ion etching treatment and CoOx electrocatalyst deposition. Finally, we demonstrated a bias-free and stable solar water-splitting by constructing a tandem PEC device with a perovskite solar cell (STH similar to 3.5%). | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | BiVO₄/WO₃/SnO₂ Double-Heterojunction Photoanode with Enhanced Charge Separation and Visible-Transparency for Bias-Free Solar Water-Splitting with a Perovskite Solar Cell | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong Rip | - |
dc.identifier.doi | 10.1021/acsami.6b12782 | - |
dc.identifier.scopusid | 2-s2.0-85019663771 | - |
dc.identifier.wosid | 000392458300034 | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.9, no.2, pp.1479 - 1487 | - |
dc.relation.isPartOf | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 9 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 1479 | - |
dc.citation.endPage | 1487 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | EFFICIENT LIGHT-ABSORPTION | - |
dc.subject.keywordPlus | HYDROGEN-PRODUCTION | - |
dc.subject.keywordPlus | PHOTOELECTROCHEMICAL CELLS | - |
dc.subject.keywordPlus | COMPOSITE PHOTOELECTRODE | - |
dc.subject.keywordPlus | QUANTUM EFFICIENCIES | - |
dc.subject.keywordPlus | FACILE FABRICATION | - |
dc.subject.keywordPlus | BIVO4 PHOTOANODES | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | TANDEM | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordAuthor | double-heterojunction photoanode | - |
dc.subject.keywordAuthor | BiVO₄/WO₃/SnO₂ | - |
dc.subject.keywordAuthor | charge transport | - |
dc.subject.keywordAuthor | transmittance | - |
dc.subject.keywordAuthor | tandem PEC device | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.6b12782 | - |
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