Exciplex Enhancement as a Tool to Increase OLED Device Efficiency
Exciplex Enhancement as a Tool to Increase OLED Device Efficiency
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DOI：
10.1021/acs.jpcc.5b11263
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发表时间：
2016-02-01
影响因子：
3.7
通讯作者：
Monkman, Andrew P.
中科院分区：
文献类型：
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作者：
Data, Przemyslaw;Kurowska, Aleksandra;Monkman, Andrew P.
有机电子学，主要是由于OLED(有机发光二极管)技术的进步，是一个快速发展的研究领域，已经给显示器市场带来了革命性的变化。这个方向介绍了在OLED中使用激基复合体发射器和热激活延迟荧光(TADF)，以提供高效、稳定的发射器，而不使用稀有和昂贵的材料，如Ir。在这里，首次展示了几种可用作OLED器件发射体的二酮基吡咯(DPP)衍生物。我们能够通过形成激基复合体增强型OLED器件来提高DPP材料的效率。利用电化学和光谱等方法对这些有机材料进行了表征，以阐明各分子间的相互作用，降低其光致发光效率。
Organic electronics, mainly due to advancements in OLED (organic light-emitting diode) technology, is a fast developing research area having already revolutionized the displays market. This direction presents the use of exciplex emitters and thermally activated delayed fluorescence (TADF) in OLEDs, to give efficient, stable emitters that do not use scarce and expensive materials such as iridium. Here, it is shown for the first time several diketopyrrolopyrrole (DPP) derivatives that could be used as emitters in OLED devices. We were able to improve the efficiency of DPP materials by forming exciplex-enhanced OLED devices. These organic materials were also characterized by electrochemical and spectroscopic methods in order to elucidate each molecule's interaction and decrease the photoluminescence efficiency.