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Advances and Challenges in White Light-Emitting Electrochemical Cells

机译:白色发光电化学电池的进展和挑战

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摘要

Since the birth of light-emitting electrochemical cells (LECs) in 1995, white LECs (WLECs) still represent a milestone. To date, over 50 contributions have been reported, presenting record WLECs with brightness of up to 10 000 cd m(-2), efficiencies of 10 cd A(-1), and excellent color rendering index 90 in different contributions. This is achieved following three main strategies focused on modifying: i) the design of the emitters, that is, emissive aggregates, multiemissive mechanism, multifluorophoric emitters; ii) the active layer composition, that is, host-guest, multilayers, exciplex- and electroplex-like emitting species systems; and iii) the device architecture, that is, tandem, photoactive filters, and microcavity/interfacial dipole effects. Herein, all of them are comprehensively discussed with respect to the above strategies in the frame of the type of emitters employed. Overall, this work highlights both the advances and challenges of the WLEC field.
机译:自1995年发光电化学电池(LECS)的诞生以来,白LEC(WLEC)仍然代表一个里程碑。迄今为止,报告了超过50个贡献,呈现出具有高达10 000cd m(-2)的亮度的录制WLEC,> 10 CD A(-1)的效率,以及不同贡献的优异显色指数> 90。这是在修改的三个主要策略之后实现的:i)发射器的设计,即发射骨料,多态机制,多氟化物发射器; ii)活性层组合物,即宿主 - 客人,多层,ExciEns和Electoplex的发射物种系统;和iii)设备架构,即串联,光敏过滤器和微腔/界面偶极偶极效应。在此,所有这些都是在所用发射器类型的框架中综合讨论的。总体而言,这项工作突出了WLEC领域的进展和挑战。

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