Abstract Highly efficient white phosphorescent organic light-emitting diodes (OLEDs) were reported using a donor–acceptor type material as a host material. A donor–acceptor type material, 10-phenyl-10H-spiro[acridine-9,9′-fluorene]-2′,7′-dicarbonitrile (ACRFLCN), was doped with a yellow emitting iridium(III) bis(4-phenylthieno[3,2-c]pyridinato-N,C2′) acetylacetonate (PO-01) dopant and high quantum efficiency of 26.9% was realized in the yellow phosphorescent OLEDs using the ACRFLCN host material. Efficient energy transfer and bipolar charge transport properties of ACRFLCN increased the quantum efficiency of the PO-01 doped yellow phosphorescent OLEDs. In addition, white phosphorescent OLEDs with the PO-01 doped ACRFLCN yellow emitting layer exhibited a high quantum efficiency of 22.8% and a high power efficiency above 50.0 lm/W.

中文翻译：

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供体-受体型材料作为高效白色磷光有机发光二极管的三重态主体

摘要 使用供体-受体型材料作为主体材料的高效白色磷光有机发光二极管 (OLED) 被报道。供体-受体型材料 10-苯基-10H-螺[吖啶-9,9'-芴]-2',7'-二甲腈（ACRFLCN）掺杂有黄色发光铱（III）双（4-在使用 ACRFLCN 主体材料的黄色磷光 OLED 中实现了苯基噻吩并 [3,2-c] 吡啶并-N,C2') 乙酰丙酮 (PO-01) 掺杂剂和 26.9% 的高量子效率。ACRFLCN 的高效能量转移和双极电荷传输特性提高了掺杂 PO-01 的黄色磷光 OLED 的量子效率。此外，具有 PO-01 掺杂的 ACRFLCN 黄色发光层的白色磷光 OLED 表现出 22.8% 的高量子效率和高于 50.0 lm/W 的高功率效率。