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김광수

Kim, Kwang S.
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dc.citation.endPage 1300 -
dc.citation.number 6 -
dc.citation.startPage 1294 -
dc.citation.title ACS ENERGY LETTERS -
dc.citation.volume 3 -
dc.contributor.author Myung, Chang Woo -
dc.contributor.author Javaid, Saqid -
dc.contributor.author Kim, Kwang S. -
dc.contributor.author Lee, Geunsik -
dc.date.accessioned 2023-12-21T20:41:21Z -
dc.date.available 2023-12-21T20:41:21Z -
dc.date.created 2018-05-31 -
dc.date.issued 2018-06 -
dc.description.abstract Despite the imperative importance in solar cell efficiency, the intriguing phenomena at the interface between perovskite solar cell and adjacent carrier transfer layers are hardly uncovered. Here we show that PbI2/AI-terminated lead iodide perovskite (APbI3; A = Cs+/ methylammonium (MA)) interfaced with the charge transport medium of graphene or TiO2 exhibits a sizable/robust Rashba-Dresselhaus (RD) effect using density functional theory and ab initio molecular dynamics (AIMD) simulations above the cubic-phase temperature. At the PbI2-terminated graphene/CsPbI3(001) interface, ferroelectric distortion toward graphene facilitates an inversion breaking field. At the MAI-terminated TiO2/MAPbI3(001) interface, the enrooted alignment of MA+ toward TiO2 by short-strong hydrogen bonding and concomitant PbI3 distortion preserve the RD interactions even above 330 K. The robust RD effect at the interface even at high temperatures, unlike in bulk, changes the direct-type band to indirect-type to suppress recombination of the electron and hole, thereby letting these accumulated carriers overcome the potential barrier between perovskite and charge transfer materials, which promotes the solar cell efficiency. -
dc.identifier.bibliographicCitation ACS ENERGY LETTERS, v.3, no.6, pp.1294 - 1300 -
dc.identifier.doi 10.1021/acsenergylett.8b00638 -
dc.identifier.issn 2380-8195 -
dc.identifier.scopusid 2-s2.0-85046786952 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/24165 -
dc.identifier.url https://pubs.acs.org/doi/10.1021/acsenergylett.8b00638 -
dc.identifier.wosid 000435159000012 -
dc.language 영어 -
dc.publisher AMER CHEMICAL SOC -
dc.title Rashba-Dresselhaus Effect in Inorganic/Organic Lead Iodide Perovskite Interfaces -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Electrochemistry; Energy & Fuels; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Chemistry; Electrochemistry; Energy & Fuels; Science & Technology - Other Topics; Materials Science -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordPlus ELECTRON-HOLE RECOMBINATION -
dc.subject.keywordPlus GRAPHENE -
dc.subject.keywordPlus ENERGY -
dc.subject.keywordPlus NANOCRYSTALS -
dc.subject.keywordPlus DYNAMICS -
dc.subject.keywordPlus EXCITONS -
dc.subject.keywordPlus BARRIER -
dc.subject.keywordPlus RUTILE -

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