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- W3214642321 abstract "In this work, an efficient carrier-regulating structure was constructed by incorporating iridium(III)bis(4-(tert-butyl)-2,6-diuoro-2,3-bipyridine)acetylacetonate (FK306) into electron transport layer as electron manager. Experimental results confirmed that the carrier-regulating structure was efficient in modulating carriers balance due to the deep LUMO (lowest unoccupied molecular orbital) level allowed for preferential electron trapping. As electron manager, the presence of FK306 molecules retarded electron migration toward light-emitting layer (EML) and relieved electron accumulation near the hole transport layer/EML interface, thus boosting carriers recombination probability. Furthermore, trapping of electrons on FK306 molecules led to the shift of recombination center toward cathode and the broadening of recombination zone, thus reducing exciton density and suppressing exciton quenching. Finally, high-performance yellow phosphorescent organic light-emitting diodes (OLEDs) with a carrier-regulating structure obtained a maximum brightness (B) of 53 006 cd m–2, a current efficiency (ηc) of 52.36 cd A–1, a power efficiency (ηp) of 47.81 lm W–1, and an external quantum efficiency of 19.4%. Our experimental results demonstrated an efficient and simple device design strategy for regulating carriers balance and realizing high-performance OLEDs." @default.
- W3214642321 created "2021-11-22" @default.
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- W3214642321 date "2021-11-15" @default.
- W3214642321 modified "2023-09-30" @default.
- W3214642321 title "High Performance Yellow Phosphorescent Organic Light-Emitting Diodes Based on an Efficient Carriers Regulating Structure with Iridium Complex as Electron Manager" @default.
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- W3214642321 doi "https://doi.org/10.1021/acs.jpcc.1c08060" @default.
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