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Investigation of Chemical Origin of White-Light Emission in Two-Dimensional (C4H9NH3)(2)PbBr4 via Infrared Nanoscopy

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dc.contributor.authorDae Young Park-
dc.contributor.authorSung-Jun An-
dc.contributor.authorChauwoo Lee-
dc.contributor.authorDuc Anh Nguyen-
dc.contributor.authorKang-Nyeoung Lee-
dc.contributor.authorMun Seok Jeong-
dc.date.available2020-01-31T00:51:23Z-
dc.date.created2020-01-07-
dc.date.issued2019-12-
dc.identifier.issn1948-7185-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/6739-
dc.description.abstractThe broadband light emission in low-dimensional organic lead halide perovskites (OHPs) is a fascinating property for white light-emitting diodes (LEDs). However, unique emission has been observed in highly distorted low-dimensional OHPs such as (110) and (111) perovskites. Herein, we report the first observation of white-light emission under ambient (21 degrees C) conditions in a rectangular microsheet of (C4H9NH3)(2)PbBr4, a (100) perovskite. The origin of white-light emission in (C4H9NH3)(2)PbBr4 was revealed as defect-assisted radiative recombination via excitation power-dependent photoluminescence measurement. Additionally, the origin of the defect was confirmed to be organic cation vacancies formed by intercalated water molecules via infrared nanoscopy. This result can help to improve the performance of white LEDs using low-dimensional OHPs. © 2019 American Chemical Society-
dc.description.uri1-
dc.language영어-
dc.publisherAMER CHEMICAL SOC-
dc.titleInvestigation of Chemical Origin of White-Light Emission in Two-Dimensional (C4H9NH3)(2)PbBr4 via Infrared Nanoscopy-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000503919300060-
dc.identifier.scopusid2-s2.0-85076866193-
dc.identifier.rimsid71051-
dc.contributor.affiliatedAuthorSung-Jun An-
dc.contributor.affiliatedAuthorChauwoo Lee-
dc.contributor.affiliatedAuthorMun Seok Jeong-
dc.identifier.doi10.1021/acs.jpclett.9b03328-
dc.identifier.bibliographicCitationJOURNAL OF PHYSICAL CHEMISTRY LETTERS, v.10, no.24, pp.7942 - 7948-
dc.citation.titleJOURNAL OF PHYSICAL CHEMISTRY LETTERS-
dc.citation.volume10-
dc.citation.number24-
dc.citation.startPage7942-
dc.citation.endPage7948-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusBROAD-BAND EMISSION-
dc.subject.keywordPlusPEROVSKITE-
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > 1. Journal Papers (저널논문)
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