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dc.contributor.author장재영-
dc.date.accessioned2021-03-31T02:26:33Z-
dc.date.available2021-03-31T02:26:33Z-
dc.date.issued2020-01-
dc.identifier.citationPHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, v. 14, no. 1, article no. 1900573en_US
dc.identifier.issn1862-6254-
dc.identifier.issn1862-6270-
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/pssr.201900573-
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/160994-
dc.description.abstractMost CsPbBr3 perovskite quantum dot light-emitting diodes (PQD-LEDs) are fabricated with an inverted device structure where hole transport/injection layers are vacuum-deposited on top of ITO/ZnO (as an electron transport layer (ETL))/PQDs. Standard device architecture of PQD-LEDs enables a solution-process of device fabrication; however, the spin-coating of ZnO ETL dissolved in polar solvent results in decreasing photoluminescence (PL) of PQDs because of PQD destabilization in polar medium. Herein, CsPbBr3 PQD-LEDs are fabricated by depositing Al2O3 and ZnO via atomic layer deposition (ALD) to avoid damages originating from the polar solvent during ZnO ETL spin-coating. Low temperature ALD is adopted to prevent the coarsening of the CsPbBr3 PQDs. A thicker Al2O3 interlayer can prevent PL quenching, but an excessively thick interlayer hinders electron transport due to the insulating nature of Al2O3. ZnO is sequentially deposited on Al2O3 interlayer via ALD, and therefore Al2O3/ZnO bilayer structure is used because of its better electron transporting ability and higher power efficiency in PQD-LED devices compared with Al2O3-only devices.en_US
dc.description.sponsorshipThis work was supported by the National Foundation of Korea (NRF) grantfunded by the Korea government (MSIT) (No. NRF-208R1C1B5044285).This work was also supported by the DGIST R&D Programs of theMinistry of Science, ICT & Future Planning of Korea (18-ET-01).Analysis of this experiment (SEM) was carried out in part in the KoreaAdvanced Nano Fab Center.en_US
dc.language.isoenen_US
dc.publisherWILEY-V C H VERLAG GMBHen_US
dc.subjectatomic layer depositionen_US
dc.subjectinterlayersen_US
dc.subjectlight-emitting diodesen_US
dc.subjectperovskitesen_US
dc.subjectquantum dotsen_US
dc.titleCsPbBr3 Perovskite Quantum Dot Light-Emitting Diodes Using Atomic Layer Deposited Al2O3 and ZnO Interlayersen_US
dc.typeArticleen_US
dc.relation.no1-
dc.relation.volume14-
dc.identifier.doi10.1002/pssr.201900573-
dc.relation.page1-9-
dc.relation.journalPHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS-
dc.contributor.googleauthorYun, Hwang-Sik-
dc.contributor.googleauthorNoh, Kyeongchan-
dc.contributor.googleauthorKim, Jigeon-
dc.contributor.googleauthorNoh, Sung Hoon-
dc.contributor.googleauthorKim, Gi-Hwan-
dc.contributor.googleauthorLee, Woongkyu-
dc.contributor.googleauthorNa, Hyon Bin-
dc.contributor.googleauthorYoon, Tae-Sik-
dc.contributor.googleauthorJang, Jaeyoung-
dc.contributor.googleauthorKim, Younghoon-
dc.relation.code2020048854-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ENERGY ENGINEERING-
dc.identifier.pidjyjang15-
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COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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