Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151832
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dc.contributor.authorKar, Shaonien_US
dc.contributor.authorNur Fadilah Jamaludinen_US
dc.contributor.authorYantara, Nataliaen_US
dc.contributor.authorMhaisalkar, Subodh Gautamen_US
dc.contributor.authorLeong, Wei Linen_US
dc.date.accessioned2021-07-02T07:08:13Z-
dc.date.available2021-07-02T07:08:13Z-
dc.date.issued2021-
dc.identifier.citationKar, S., Nur Fadilah Jamaludin, Yantara, N., Mhaisalkar, S. G. & Leong, W. L. (2021). Recent advancements and perspectives on light management and high performance in perovskite light-emitting diodes. Nanophotonics, 10(8), 2103-2143. https://dx.doi.org/10.1515/nanoph-2021-0033en_US
dc.identifier.issn2192-8614en_US
dc.identifier.urihttps://hdl.handle.net/10356/151832-
dc.description.abstractPerovskite semiconductors have experienced meteoric rise in a variety of optoelectronic applications. With a strong foothold on photovoltaics, much focus now lies on their light emission applications. Rapid progress in materials engineering have led to the demonstration of external quantum efficiencies that surpass the previously established theoretical limits. However, there remains much scope to further optimize the light propagation inside the device stack through careful tailoring of the optical processes that take place at the bulk and interface levels. Photon recycling in the emitter material followed by efficient outcoupling can result in boosting external efficiencies up to 100%. In addition, the poor ambient and operational stability of these materials and devices restrict further commercialization efforts. With best operational lifetimes of only a few hours reported, there is a long way to go before perovskite LEDs can be perceived as reliable alternatives to more established technologies like organic or quantum dot-based LED devices. This review article starts with the discussions of the mechanism of luminescence in these perovskite materials and factors impacting it. It then looks at the possible routes to achieve efficient outcoupling through nanostructuring of the emitter and the substrate. Next, we analyze the instability issues of perovskite-based LEDs from a photophysical standpoint, taking into consideration the underlying phenomena pertaining to defects, and summarize recent advances in mitigating the same. Finally, we provide an outlook on the possible routes forward for the field and propose new avenues to maximally exploit the excellent light-emitting capabilities of this family of semiconductors.en_US
dc.description.sponsorshipAgency for Science, Technology and Research (A*STAR)en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationNRFCRP14-2014-03en_US
dc.relationNRF2018-ITC001-001en_US
dc.relation2018-T2-1-075en_US
dc.relation2019-T2-2-106en_US
dc.relationW1925d0106en_US
dc.relation.ispartofNanophotonicsen_US
dc.rights© 2021 Shaoni Kar et al., published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License.en_US
dc.subjectEngineering::Materials::Photonics and optoelectronics materialsen_US
dc.subjectEngineering::Electrical and electronic engineering::Optics, optoelectronics, photonicsen_US
dc.titleRecent advancements and perspectives on light management and high performance in perovskite light-emitting diodesen_US
dc.typeJournal Articleen
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.identifier.doi10.1515/nanoph-2021-0033-
dc.description.versionPublished versionen_US
dc.identifier.issue8en_US
dc.identifier.volume10en_US
dc.identifier.spage2103en_US
dc.identifier.epage2143en_US
dc.subject.keywordsLight Managementen_US
dc.subject.keywordsPerovskite Light Emitting Diodesen_US
dc.description.acknowledgementThis research was supported by National Research Foundation, Prime Minister’s Office, Singapore, under its Competitive Research Programme (CRP Award No. NRFCRP14-2014-03), and Intra-CREATE Collaborative Grant (NRF2018-ITC001-001), as well as Ministry of Education (MOE) under AcRF Tier 2 grants (2018-T2-1-075 and 2019-T2-2-106), and A*STAR National Robotics Programme (W1925d0106).en_US
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