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김진영

Kim, Jin Young
Next Generation Energy Lab.
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dc.citation.number 9 -
dc.citation.startPage 2000296 -
dc.citation.title SMALL METHODS -
dc.citation.volume 4 -
dc.contributor.author Kajal, Sandeep -
dc.contributor.author Kim, Junu -
dc.contributor.author Shin, Yun Seop -
dc.contributor.author Singh, Aditya Narayan -
dc.contributor.author Myung, Chang Woo -
dc.contributor.author Kim, Jin Young -
dc.contributor.author Kim, Kwang S. -
dc.date.accessioned 2023-12-21T17:07:38Z -
dc.date.available 2023-12-21T17:07:38Z -
dc.date.created 2020-09-03 -
dc.date.issued 2020-09 -
dc.description.abstract Low-temperature alpha-phase stabilization using HI or zwitterions in cesium lead iodide (CsPbI3) endures the metastable phase properties but is thermally unstable. Doping with a small amount of heterovalent metals (i.e., Bi3+, Sb3+) in CsPbI(3)has been assumed to stabilize the alpha-phase, while here this assumption is challenged. It is demonstrated that heterovalent metal ion doping stabilizes beta-CsPbI3 at low temperatures without replacing the Pb(2+)cations, while divalent cations (i.e., Ba2+, Sr2+, and Sn2+) doping stabilizes the alpha-CsPbI3 by replacing the Pb(2+)cations. This finding is demonstrated by both theoretical and experimental results. It is also found that the divalent cations stabilize alpha-CsPbI3 films, making thermally stable at high temperatures, whereas heterovalent metal-doping stabilizes beta-CsPbI3 films, making metastable. The doping influence on crystal grains and the chemical composition of thin films is discussed. In particular, the charge dissociation kinetics for the Sr doped thin film are much enhanced than alpha-CsPbI(3)and Ba doped thin films, also the initial results of the fabricated perovskite red-light-emmiting diode suggests that the Sr-doped thin films would be more suitable for the device fabrication. These findings will guide a way for further development in thermally and air-stable optoelectronic devices. -
dc.identifier.bibliographicCitation SMALL METHODS, v.4, no.9, pp.2000296 -
dc.identifier.doi 10.1002/smtd.202000296 -
dc.identifier.issn 2366-9608 -
dc.identifier.scopusid 2-s2.0-85089149646 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/48070 -
dc.identifier.url https://onlinelibrary.wiley.com/doi/full/10.1002/smtd.202000296 -
dc.identifier.wosid 000557369100001 -
dc.language 영어 -
dc.publisher WILEY-V C H VERLAG GMBH -
dc.title Unfolding the Influence of Metal Doping on Properties of CsPbI(3)Perovskite -
dc.type Article -
dc.description.isOpenAccess FALSE -
dc.relation.journalWebOfScienceCategory Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary -
dc.relation.journalResearchArea Chemistry; Science & Technology - Other Topics; Materials Science -
dc.type.docType Article; Early Access -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.subject.keywordAuthor heterovalent metals -
dc.subject.keywordAuthor metal-doping -
dc.subject.keywordAuthor photo-stability -
dc.subject.keywordAuthor thermal stability -
dc.subject.keywordAuthor alpha-CsPbI3 -
dc.subject.keywordPlus PEROVSKITE SOLAR-CELLS -
dc.subject.keywordPlus STABILIZED ALPHA-CSPBI3 -
dc.subject.keywordPlus EFFICIENCY -
dc.subject.keywordPlus CSPBI2BR -
dc.subject.keywordPlus PHASE -

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