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• W3167566466 endingPage "118226" @default.
• W3167566466 startingPage "118226" @default.
• W3167566466 abstract "In this work, novel blue and white organic light-emitting diodes (OLEDs) were designed by utilizing iridium(Ⅲ)bis(4-(tert-butyl)-2,6-diuoro-2,3-bipyridinne)acetylacetonate (FK306) as sensitizer in both light-emitting and electron transport layers. Analysis of device configuration demonstrated that FK306 molecules work as electron trappers in view of their low-lying energy levels and triplet energy, which broaden the width of recombination zone, thus enhancing carriers' recombination probability and suppressing the annihilation of excitons. Consequently, blue and white devices with low turn-on voltages were reported with current efficiencies of 71.95 and 72.23 cd A −1 , external quantum efficiencies of 32.62% and 31.30%, power efficiencies of 74.85 and 70.80 lm W −1 and brightness of 43171 and 37848 cd m −2 , respectively. Within electron transport layer, the optimal doping concentration of FK306 is 2 wt%, which can be easily controlled in device manufacture processes. In addition, it is much more flexible in terms of sensitizer choice for doped electron transport layer compared with light-emitting layer. High performance blue and white organic light-emitting diodes (OLEDs) with slow efficiency roll-off were designed by utilizing iridium(Ⅲ)bis(4-(tert-butyl)-2,6-diuoro-2,3-bipyridinne)acetylacetonate (FK306) as sensitizer in both light-emitting and electron transport layers. • Effective device structure was designed by utilizing iridium(Ⅲ) complex FK306 as sensitizer. • Co-doped sensitizer molecules function as electron trappers, which balanced carriers' distribution and broadened recombination zone. • The sensitized devices displayed higher EL efficiency and slower efficiency roll-off. • It is much more flexible in terms of sensitizer choice within doped electron transport layer." @default.
• W3167566466 created "2021-06-22" @default.
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• W3167566466 date "2021-10-01" @default.
• W3167566466 modified "2023-10-14" @default.
• W3167566466 title "High performance blue and white phosphorescent organic light-emitting diodes obtained by sensitizing both light-emitting and electron transport layers" @default.
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• W3167566466 doi "https://doi.org/10.1016/j.jlumin.2021.118226" @default.
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