High-efficiency light-emitting diodes of organometal halide perovskite amorphous nanoparticles

buir.contributor.authorDemir, Hilmi Volkan
buir.contributor.orcidDemir, Hilmi Volkan|0000-0003-1793-112X
dc.citation.epage6630en_US
dc.citation.issueNumber7en_US
dc.citation.spage6623en_US
dc.citation.volumeNumber10en_US
dc.contributor.authorXing, J.en_US
dc.contributor.authorYan, F.en_US
dc.contributor.authorZhao Y.en_US
dc.contributor.authorChen, S.en_US
dc.contributor.authorYu, H.en_US
dc.contributor.authorZhang, Q.en_US
dc.contributor.authorZeng, R.en_US
dc.contributor.authorDemir, Hilmi Volkanen_US
dc.contributor.authorSun, X.en_US
dc.contributor.authorHuan, A.en_US
dc.contributor.authorXiong, Q.en_US
dc.date.accessioned2018-04-12T10:50:46Z
dc.date.available2018-04-12T10:50:46Z
dc.date.issued2016en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractOrganometal halide perovskite has recently emerged as a very promising family of materials with augmented performance in electronic and optoelectronic applications including photovoltaic devices, photodetectors, and light-emitting diodes. Herein, we propose and demonstrate facile solution synthesis of a series of colloidal organometal halide perovskite CH3NH3PbX3 (X = halides) nanoparticles with amorphous structure, which exhibit high quantum yield and tunable emission from ultraviolet to near-infrared. The growth mechanism and photoluminescence properties of the perovskite amorphous nanoparticles were studied in detail. A high-efficiency green-light-emitting diode based on amorphous CH3NH3PbBr3 nanoparticles was demonstrated. The perovskite amorphous nanoparticle-based light-emitting diode shows a maximum luminous efficiency of 11.49 cd/A, a power efficiency of 7.84 lm/W, and an external quantum efficiency of 3.8%, which is 3.5 times higher than that of the best colloidal perovskite quantum-dot-based light-emitting diodes previously reported. Our findings indicate the great potential of colloidal perovskite amorphous nanoparticles in light-emitting devices. © 2016 American Chemical Society.en_US
dc.description.provenanceMade available in DSpace on 2018-04-12T10:50:46Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 179475 bytes, checksum: ea0bedeb05ac9ccfb983c327e155f0c2 (MD5) Previous issue date: 2016en
dc.identifier.doi10.1021/acsnano.6b01540en_US
dc.identifier.issn1936-0851
dc.identifier.urihttp://hdl.handle.net/11693/36721
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1021/acsnano.6b01540en_US
dc.source.titleACS Nanoen_US
dc.subjectElectroluminescenceen_US
dc.subjectLight-emitting diodesen_US
dc.subjectNanoparticlesen_US
dc.subjectOrganometal halide perovskiteen_US
dc.subjectPhotoluminescenceen_US
dc.titleHigh-efficiency light-emitting diodes of organometal halide perovskite amorphous nanoparticlesen_US
dc.typeArticleen_US

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