Sky-Blue Organic Light Emitting Diode with 37% External Quantum Efficiency Using Thermally Activated Delayed Fluorescence from Spiroacridine-Triazine Hybrid

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• 作者：Ting-An Lin ; Tanmay Chatterjee ; Wei-Lung Tsai ; Wei-Kai Lee ; Meng-Jung Wu ; Min Jiao ; Kuan-Chung Pan ; Chih-Lung Yi ; Chin-Lung Chung ; Ken-Tsung Wong and Chung-Chih Wu
• 刊名：Advanced Materials
• 出版年：2016
• 出版时间：August 24, 2016
• 年：2016
• 卷：28
• 期：32
• 页码：6976-6983
• 全文大小：1867K
• ISSN：1521-4095

文摘

Extremely efficient sky-blue organic electroluminescence with external quantum efficiency of ≈37% is achieved in a conventional planar device structure, using a highly efficient thermally activated delayed fluorescence emitter based on the spiroacridine–triazine hybrid and simultaneously possessing nearly unitary (100%) photoluminescence quantum yield, excellent thermal stability, and strongly horizontally oriented emitting dipoles (with a horizontal dipole ratio of 83%).