The Design of Dual Emitting Cores for Green Thermally Activated Delayed Fluorescent Materials |
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| Authors: | Yong Joo Cho Sang Kyu Jeon Prof Byung Doo Chin Dr Eunsun Yu Prof Jun Yeob Lee |
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| Institution: | 1. Department of Polymer Science and Engineering, Dankook University, 152, Jukjoen‐ro, Suji‐gu, Yongin, Gyeonggi, 448‐701 (Korea);2. School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu‐ro, Jangan‐gu, Suwon, Gyeonggi, 440‐746 (Korea);3. Central R&D Center, Samsung SDI, Samsung‐Ro 130, Yeongtong‐Gu, Suwon, Gyeonggi‐Do 443‐803 (Korea) |
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| Abstract: | Dual emitting cores for thermally activated delayed fluorescent (TADF) emitters were developed. Relative to the corresponding TADF emitter with a single emitting core the TADF emitter with a dual emitting core, 3,3′,5,5′‐tetra(carbazol‐9‐yl)‐1,1′‐biphenyl]‐2,2′,6,6′‐tetracarbonitrile, showed enhanced light absorption accompanied by a high photoluminescence quantum yield. The quantum and power efficiencies of the TADF devices were enhanced by the dual emitting cores. |
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| Keywords: | fluorescence fluorescent materials photochemistry photoluminescence quantum efficiency |
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