Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full-Color Delayed Fluorescence OLEDs
Luminous Butterflies: Efficient Exciton Harvesting by Benzophenone Derivatives for Full-Color Delayed Fluorescence OLEDs
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DOI：
10.1002/anie.201402992
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发表时间：
2014-06-01
影响因子：
16.6
通讯作者：
Adachi, Chihaya
中科院分区：
文献类型：
--
作者：
Lee, Sae Youn;Yasuda, Takuma;Adachi, Chihaya
蝴蝶形发光二苯甲酮衍生物的单重态和三重态激发态之间具有小的能隙，用于实现高效的全色延迟荧光。将这些二苯甲酮衍生物掺杂到发光层中的有机发光二极管（OLED）可以产生从蓝色到橙红色和白色的电致发光，最大外量子效率高达14.3%。三重态激子通过延迟荧光通道被有效地收获。
Butterfly-shaped luminescent benzophenone derivatives with small energy gaps between their singlet and triplet excited states are used to achieve efficient full-color delayed fluorescence. Organic light-emitting diodes (OLEDs) with these benzophenone derivatives doped in the emissive layer can generate electroluminescence ranging from blue to orange-red and white, with maximum external quantum efficiencies of up to 14.3%. Triplet excitons are efficiently harvested through delayed fluorescence channels.