Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 2400178 | - |
dc.citation.title | ADVANCED MATERIALS INTERFACES | - |
dc.contributor.author | Jin, Wonjoo | - |
dc.contributor.author | Lee, Youri | - |
dc.contributor.author | Shin, Changhwan | - |
dc.contributor.author | Park, Jeonghwan | - |
dc.contributor.author | Jang, Ji-Wook | - |
dc.contributor.author | Seo, Kwanyong | - |
dc.date.accessioned | 2024-05-31T16:05:11Z | - |
dc.date.available | 2024-05-31T16:05:11Z | - |
dc.date.created | 2024-05-28 | - |
dc.date.issued | 2024-05 | - |
dc.description.abstract | To design a high-efficiency crystalline silicon (c-Si) photocathode, the photovoltage and photocurrent generated by the device must be maximized because these factors directly affect the hydrogen evolution reaction (HER). In this study, a c-Si p-n junction is used to enhance the photovoltage of the c-Si photocathode, and a tapered microwire array structure is introduced to increase the photocurrent. When tapered microwire arrays are employed on the front surface of the c-Si photocathode, a current density of approximate to 41.7 mA cm(-2) is achieved at 0 V-RHE (reversible hydrogen electrode); this current density is the highest among all reported photocathodes including c-Si, approaching the theoretical maximum value for c-Si. Furthermore, a Ni foil/Pt catalyst is introduced on the opposite side of the incident light, simultaneously serving as an electrocatalyst to reduce side reactions in the HER and encapsulation layer to prevent c-Si from contacting the electrolyte. Thus, a stable device is developed using c-Si photoelectrochemical cells that have an efficiency exceeding 97% for >1000 h. | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS INTERFACES, pp.2400178 | - |
dc.identifier.doi | 10.1002/admi.202400178 | - |
dc.identifier.issn | 2196-7350 | - |
dc.identifier.scopusid | 2-s2.0-85192445811 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/82877 | - |
dc.identifier.wosid | 001216631900001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY | - |
dc.title | Crystalline Silicon Photocathode with Tapered Microwire Arrays Achieving a High Current Density of 41.7 mA cm⁻2 | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Materials Science | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | crystalline silicon | - |
dc.subject.keywordAuthor | electrochemistry | - |
dc.subject.keywordAuthor | photocathode | - |
dc.subject.keywordAuthor | photocurrent | - |
dc.subject.keywordAuthor | water splitting | - |
dc.subject.keywordPlus | RADIAL JUNCTION | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | PHOTOVOLTAICS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | FILMS | - |
dc.subject.keywordPlus | OXIDE | - |
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