Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Anthony Daleo | - |
dc.date.accessioned | 2019-08-01T16:30:27Z | - |
dc.date.available | 2019-08-01T16:30:27Z | - |
dc.date.issued | 2019 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.other | OAK-24330 | - |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/250364 | - |
dc.description.abstract | We report enhanced near-infrared (NIR) electroluminescence from a Nd3+-complex with thenoyltrifluoroacetone and 1,10-phenanthroline ligands. The NIR-emitting complex was blended into an exciplex-forming co-host system comprising 2,7-bis(diphenylphosphoryl)-9,9′-spirobifluorene as the electron transport material and 4,4′,4″-tris(carbazol-9-yl)triphenylamine as the hole transport material in solution-processed small molecule organic light-emitting diodes (OLEDs). This binary ambipolar host system favors direct charge trapping and exciton formation on the Nd3+-complex molecules. Efficient energy transfer from the singlet and triplet exciplexes formed between the host molecules to the Nd3+ ions contributes to the enhanced luminescence efficiency. The photoluminescence quantum yield of this blend is 1.2%, and the optimized OLED shows a maximum electroluminescence external quantum efficiency of 0.034%. The device also exhibits a low efficiency roll-off of only 12% over a current density range of 100 mA/cm2, due to the reduced triplet-polaron annihilation. © 2019 Author(s). | - |
dc.language | English | - |
dc.publisher | American Institute of Physics Inc. | - |
dc.title | Enhanced near-infrared electroluminescence from a neodymium complex in organic light-emitting diodes with a solution-processed exciplex host | - |
dc.type | Article | - |
dc.relation.issue | 3 | - |
dc.relation.volume | 114 | - |
dc.relation.index | SCIE | - |
dc.relation.index | SCOPUS | - |
dc.relation.journaltitle | Applied Physics Letters | - |
dc.identifier.doi | 10.1063/1.5054721 | - |
dc.identifier.wosid | WOS:000456825400018 | - |
dc.identifier.scopusid | 2-s2.0-85060635195 | - |
dc.author.google | Shahalizad A. | - |
dc.author.google | Kim D.-H. | - |
dc.author.google | Rao Bobbara S. | - |
dc.author.google | Tsuchiya Y. | - |
dc.author.google | D'Aléo A. | - |
dc.author.google | Andraud C. | - |
dc.author.google | Ribierre J.-C. | - |
dc.author.google | Nunzi J.-M. | - |
dc.author.google | Adachi C. | - |
dc.date.modifydate | 20210915115208 | - |