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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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Conjugated Polyelectrolytes as Efficient Hole Transport Layers in Perovskite Light-Emitting Diodes

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dc.contributor.authorLee, Bo Ramko
dc.contributor.authorYu, Jae Chulko
dc.contributor.authorPark, Jong Hyunko
dc.contributor.authorLee, Seungjinko
dc.contributor.authorMai, Cheng-Kangko
dc.contributor.authorZhao, Baodanko
dc.contributor.authorWong, Matthew S.ko
dc.contributor.authorJung, Eui Daeko
dc.contributor.authorNam, Yun Seokko
dc.contributor.authorPark, Song Yiko
dc.contributor.authorDi Nuzzo, Danieleko
dc.contributor.authorKim, Jin Youngko
dc.contributor.authorStranks, Samuel Dko
dc.contributor.authorBazan, Guillermo C.ko
dc.contributor.authorChoi, Hyosungko
dc.contributor.authorSong, Myoung Hoonko
dc.contributor.authorFriend, Richard H.ko
dc.date.available2018-05-24T00:42:13Z-
dc.date.created2018-05-24ko
dc.date.issued201806ko
dc.identifier.citationACS NANO, v.12, no.6, pp.5826 - 5833ko
dc.identifier.issn1936-0851ko
dc.identifier.urihttp://scholarworks.unist.ac.kr/handle/201301/24149-
dc.identifier.urihttps://pubs.acs.org/doi/10.1021/acsnano.8b01715ko
dc.description.abstractPerovskite-based optoelectronic devices have been rapidly developing in the past 5 years. Since the first report the external quantum efficiency (EQE) of perovskite light-emitting diodes (PeLEDs) has increased rapidly through the control of morphology and structure from 0.1% to more than 11%. Here, we report the use of various conjugated polyelectrolytes (CPEs) as the hole injection layer in PeLEDs. In particular, we find that poly[2,6-(4,4-bis-potassium butanylsulfonate)-4H-cyclopenta-[2,1-b;3,4-b′]-dithiophene)] (PCPDT-K) transfers holes effectively, blocks electron transport from the perovskite to the underlying ITO layer and reduces luminescence quenching at the perovskite/PCPDT-K interface. Our optimized PeLEDs with PCPDT-K show enhanced EQE by a factors of approximately 2 compared to control PeLEDs with PEDOT:PSS, reaching EQE values of 1.5%, and exhibit improved device stability.ko
dc.languageENGko
dc.publisherAMER CHEMICAL SOCko
dc.titleConjugated Polyelectrolytes as Efficient Hole Transport Layers in Perovskite Light-Emitting Diodesko
dc.typeARTICLEko
dc.identifier.pid1044null
dc.identifier.pid1045null
dc.identifier.rimsid30335ko
dc.identifier.scopusid2-s2.0-85047524222ko
dc.identifier.wosid000436910200079ko
dc.type.rimsAko
dc.identifier.doihttp://dx.doi.org/10.1021/acsnano.8b01715ko
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