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dc.contributor.authorSingh, Amandeep
dc.contributor.authorMinh, Tam Hoang
dc.contributor.authorNgoc, Duy Pham
dc.contributor.authorWang, Tony
dc.contributor.authorMcdonald, Joshua
dc.contributor.authorLi, Qin
dc.contributor.authorOstrikov, Kostya Ken
dc.contributor.authorWang, Hongxia
dc.contributor.authorSonar, Prashant
dc.date.accessioned2021-11-04T01:20:43Z
dc.date.available2021-11-04T01:20:43Z
dc.date.issued2021
dc.identifier.issn2365-709X
dc.identifier.doi10.1002/admt.202100583
dc.identifier.urihttp://hdl.handle.net/10072/409768
dc.description.abstractThe halide perovskite nanocrystals (P-NCs) can address a plethora of issues of the light-emission technologies, due to its low temperature processing. To successfully employ P-NCs for light-emitting diodes (LEDs), one needs to resolve the issues of stability of the LEDs. The stability of device can be achieved by charge balance of electrons and holes recombination in active material. To investigate this herein, a self-assembled carbon dots (CDs) layer is fabricated from waste small strands of human hair. The self-assembled CDs layer is used beneath P-NCs layer to reduce the band-off set for hole transport, thus balancing the electron and holes carrier in active layer. The layer is used as an active light-emitting layer to fabricate a LED device that exhibits green luminescence of 4800 cd m−2 at a current efficiency of 10.7 cd A−1 and external quantum efficiency of 4.8%. The LED exhibits operational stability of nearly 200 h. The same film is used to demonstrate a flexible device with maximum luminescence of 2259 cd m−2, with a high current density of 474 mA cm−2, current efficiency of 1.37 cd A−1 and a low turn-on voltage of 3.5 V. All the display devices are measured in air without encapsulation.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherWiley
dc.relation.ispartofjournalAdvanced Materials Technologies
dc.subject.fieldofresearchNanotechnology
dc.subject.fieldofresearchElectrical engineering
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchPhysical sciences
dc.subject.fieldofresearchcode4018
dc.subject.fieldofresearchcode4008
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode40
dc.subject.fieldofresearchcode51
dc.subject.keywordsScience & Technology
dc.subject.keywordsMaterials Science, Multidisciplinary
dc.subject.keywordsMaterials Science
dc.subject.keywordscarbon dots
dc.titleBand Alignment with Self-Assembled 2D Layer of Carbon Derived from Waste to Balance Charge Injection in Perovskite Crystals Based Rigid and Flexible Light Emitting Diodes
dc.typeJournal article
dc.type.descriptionC1 - Articles
dcterms.bibliographicCitationSingh, A; Minh, TH; Ngoc, DP; Wang, T; Mcdonald, J; Li, Q; Ostrikov, KK; Wang, H; Sonar, P, Band Alignment with Self-Assembled 2D Layer of Carbon Derived from Waste to Balance Charge Injection in Perovskite Crystals Based Rigid and Flexible Light Emitting Diodes, Advanced Materials Technologies, 2021
dc.date.updated2021-11-04T01:12:18Z
gro.description.notepublicThis publication has been entered as an advanced online version in Griffith Research Online.
gro.hasfulltextNo Full Text
gro.griffith.authorLi, Qin
gro.griffith.authorPannu, Amandeep Singh S.


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