High-Efficiency Solution-Processed Inorganic Metal Halide Perovskite Light-Emitting Diodes

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dc.contributor.authorCho, Himchanko
dc.contributor.authorWolf, Christophko
dc.contributor.authorKim, Joo Sungko
dc.contributor.authorYun, Hyung Joongko
dc.contributor.authorBae, Jong Seongko
dc.contributor.authorKim, Hobeomko
dc.contributor.authorHeo, Jung-Minko
dc.contributor.authorAhn, Soyeongko
dc.contributor.authorLee, Tae-Wooko
dc.date.accessioned2021-03-06T04:30:20Z-
dc.date.available2021-03-06T04:30:20Z-
dc.date.created2021-03-06-
dc.date.issued2017-08-
dc.identifier.citationADVANCED MATERIALS, v.29, no.31-
dc.identifier.issn0935-9648-
dc.identifier.urihttp://hdl.handle.net/10203/281288-
dc.description.abstractThis paper reports highly bright and efficient CsPbBr3 perovskite light-emitting diodes (PeLEDs) fabricated by simple one-step spin-coating of uniform CsPbBr3 polycrystalline layers on a self-organized buffer hole injection layer and stoichiometry-controlled CsPbBr3 precursor solutions with an optimized concentration. The PeLEDs have maximum current efficiency of 5.39 cd A(-1) and maximum luminance of 13752 cd m(-2). This paper also investigates the origin of current hysteresis, which can be ascribed to migration of Br-anions. Temperature dependence of the electroluminescence (EL) spectrum is measured and the origins of decreased spectrum area, spectral blue-shift, and linewidth broadening are analyzed systematically with the activation energies, and are related with Br-anion migration, thermal dissociation of excitons, thermal expansion, and electron-phonon interaction. This work provides simple ways to improve the efficiency and brightness of all-inorganic polycrystalline PeLEDs and improves understanding of temperature-dependent ion migration and EL properties in inorganic PeLEDs.-
dc.languageEnglish-
dc.publisherWILEY-V C H VERLAG GMBH-
dc.titleHigh-Efficiency Solution-Processed Inorganic Metal Halide Perovskite Light-Emitting Diodes-
dc.typeArticle-
dc.identifier.wosid000407565700008-
dc.identifier.scopusid2-s2.0-85020401147-
dc.type.rimsART-
dc.citation.volume29-
dc.citation.issue31-
dc.citation.publicationnameADVANCED MATERIALS-
dc.identifier.doi10.1002/adma.201700579-
dc.contributor.localauthorCho, Himchan-
dc.contributor.nonIdAuthorWolf, Christoph-
dc.contributor.nonIdAuthorKim, Joo Sung-
dc.contributor.nonIdAuthorYun, Hyung Joong-
dc.contributor.nonIdAuthorBae, Jong Seong-
dc.contributor.nonIdAuthorKim, Hobeom-
dc.contributor.nonIdAuthorHeo, Jung-Min-
dc.contributor.nonIdAuthorAhn, Soyeong-
dc.contributor.nonIdAuthorLee, Tae-Woo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorcesium lead halides-
dc.subject.keywordAuthorelectron-phonon coupling-
dc.subject.keywordAuthorinorganic halide perovskites-
dc.subject.keywordAuthorlight-emitting diodes-
dc.subject.keywordAuthornext-generation emitters-
dc.subject.keywordPlusDEPENDENT EXCITONIC PHOTOLUMINESCENCE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusBRIGHT-
dc.subject.keywordPlusNANOCRYSTALS-
dc.subject.keywordPlusCSPBBR3-
dc.subject.keywordPlusSTABILITY-
dc.subject.keywordPlusMIGRATION-
dc.subject.keywordPlusDEVICES-
dc.subject.keywordPlusCSPBX3-
dc.subject.keywordPlusFILMS-
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