Graded-host phosphorescent light-emitting diodes with high efficiency and reduced roll-off
buir.contributor.author | Demir, Hilmi Volkan | |
buir.contributor.orcid | Demir, Hilmi Volkan|0000-0003-1793-112X | |
dc.citation.epage | 012192-7 | en_US |
dc.citation.issueNumber | 1 | en_US |
dc.citation.spage | 012192-1 | en_US |
dc.citation.volumeNumber | 2 | en_US |
dc.contributor.author | Liu, S. W. | en_US |
dc.contributor.author | Sun, X. W. | en_US |
dc.contributor.author | Demir, Hilmi Volkan | en_US |
dc.date.accessioned | 2016-02-08T09:43:17Z | |
dc.date.available | 2016-02-08T09:43:17Z | |
dc.date.issued | 2012 | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.department | Department of Physics | en_US |
dc.department | Institute of Materials Science and Nanotechnology (UNAM) | en_US |
dc.description.abstract | We demonstrated graded-host phosphorescent organic light-emitting diodes with high efficiency and reduced efficiency roll-off. The emissive layer of the graded host device consists of both electron and hole transport type hosts, 1,3,5-tris(N-phenylbenzimidazole-2-yl)benzene (TPBI) and 4,4-,4- tris(Ncarbazolyl) triphenylamine, respectively, with graded composition, and the phosphorescent red emitter bis(2-phenylquinoline) (acetylacetonate) iridium(III), which wasuniformly doped into the graded hostmatrix. The graded host device shows improved quantum efficiency and power efficiency with significantly reduced efficiency rolloff as compared to the unipolar-host and double layer heterojunction host devices. | en_US |
dc.description.provenance | Made available in DSpace on 2016-02-08T09:43:17Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2012 | en |
dc.identifier.doi | 10.1063/1.3701685 | en_US |
dc.identifier.eissn | 2158-3226 | en_US |
dc.identifier.issn | 2158-3226 | |
dc.identifier.uri | http://hdl.handle.net/11693/21221 | |
dc.language.iso | English | en_US |
dc.publisher | A I P Publishing LLC | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1063/1.3701685 | en_US |
dc.source.title | AIP Advances | en_US |
dc.subject | Acetylacetonates | en_US |
dc.subject | Double layers | en_US |
dc.subject | Emissive layers | en_US |
dc.subject | Graded composition | en_US |
dc.subject | Hole transports | en_US |
dc.subject | Host devices | en_US |
dc.subject | Phosphorescent organic light-emitting diodes | en_US |
dc.subject | Power efficiency | en_US |
dc.subject | Red emitter | en_US |
dc.subject | Triphenyl amines | en_US |
dc.subject | Benzene | en_US |
dc.subject | Heterojunctions | en_US |
dc.subject | Iridium compounds | en_US |
dc.subject | Light emission | en_US |
dc.subject | Light emitting diodes | en_US |
dc.subject | Phosphorescence | en_US |
dc.subject | Efficiency | en_US |
dc.title | Graded-host phosphorescent light-emitting diodes with high efficiency and reduced roll-off | en_US |
dc.type | Article | en_US |
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