Ultralarge Magneto-Electroluminescence in Exciplex-Based Devices Driven by Field-Induced Reverse Intersystem Crossing

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• 作者：Yanlian Lei ; Qiaoming Zhang ; Lixiang Chen ; Yongzhou Ling ; Ping Chen ; Qunliang Song and Zuhong Xiong
• 刊名：Advanced Optical Materials
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：4
• 期：5
• 页码：694-699
• 全文大小：1549K
• ISSN：2195-1071

文摘

Ultralarge magneto-electroluminescence (MEL) as high as ≈160% is achieved in donor–acceptor blend exciplex-based organic light-emitting diodes at room temperature. Such large MEL is crucially determined by the activation energy in the exciplex manifold. It is caused by the field-induced reverse intersystem crossing in the exciplexes, which is driven by a Δg spin-mixing mechanism.