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Enhancing photoluminescence quantum efficiency of metal halide perovskites by examining luminescence-limiting factors
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jang, Hyun Myung | - |
dc.contributor.author | Kim, Joo-Sung | - |
dc.contributor.author | Heo, Jung-Min | - |
dc.contributor.author | Lee, Tae-Woo | - |
dc.date.accessioned | 2021-01-31T04:59:26Z | - |
dc.date.available | 2021-01-31T04:59:26Z | - |
dc.date.created | 2020-05-15 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.citation | APL Materials, Vol.8 No.2, p. 020904 | - |
dc.identifier.issn | 2166-532X | - |
dc.identifier.other | 100115 | - |
dc.identifier.uri | https://hdl.handle.net/10371/171783 | - |
dc.description.abstract | Metal halide perovskites (MHPs) show superior optoelectronic properties, which give them the great potential for use in next generation light-emitting diodes (LEDs). In particular, their narrow emission linewidths can achieve ultrahigh color purity. However, the reported luminescence efficiency (LE) values are not high enough to be commercialized in displays and solid-state lightings. Moreover, the operational stability of LEDs associated with the overshooting of luminance and the high relative standard deviation of reported external quantum efficiencies are still problematic. In this perspective, we review photophysical factors that limit the photoluminescence quantum efficiency of perovskite-based LEDs. These factors are categorized into (i) weak exciton binding, (ii) nonradiative recombinations, (iii) slow cooling of long-lived hot carriers, (iv) deep-level defects, and (v) interband transition rates. We then present various physicochemical methods to effectively overcome these luminescence-limiting factors. We finally suggest some useful research directions to further improve the LE of MHP emitters as core components in displays and solid-state lightings. | - |
dc.language | 영어 | - |
dc.publisher | American Institute of Physics Publising LLC | - |
dc.title | Enhancing photoluminescence quantum efficiency of metal halide perovskites by examining luminescence-limiting factors | - |
dc.type | Article | - |
dc.contributor.AlternativeAuthor | 이태우 | - |
dc.identifier.doi | 10.1063/1.5136308 | - |
dc.citation.journaltitle | APL Materials | - |
dc.identifier.wosid | 000515530400001 | - |
dc.identifier.scopusid | 2-s2.0-85079747499 | - |
dc.citation.number | 2 | - |
dc.citation.startpage | 020904 | - |
dc.citation.volume | 8 | - |
dc.identifier.sci | 000515530400001 | - |
dc.description.isOpenAccess | Y | - |
dc.contributor.affiliatedAuthor | Lee, Tae-Woo | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | ORGANOMETAL TRIHALIDE PEROVSKITE | - |
dc.subject.keywordPlus | EXCITON BINDING-ENERGY | - |
dc.subject.keywordPlus | RECOMBINATION DYNAMICS | - |
dc.subject.keywordPlus | CH3NH3PBBR3 PEROVSKITE | - |
dc.subject.keywordPlus | CARRIER LIFETIME | - |
dc.subject.keywordPlus | SURFACE-DEFECTS | - |
dc.subject.keywordPlus | CHARGE-TRANSFER | - |
dc.subject.keywordPlus | ION MIGRATION | - |
dc.subject.keywordPlus | THIN-FILMS | - |
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