Hybrid Tamm plasmon-polariton/microcavity modes for white top-emitting organic light-emitting devices
Hybrid Tamm plasmon-polariton/microcavity modes for white top-emitting organic light-emitting devices
复制标题
用于白色顶发射有机发光器件的混合塔姆等离子体激元极化/微腔模式
DOI：
10.1364/optica.2.000579
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发表时间：
2015-06
期刊：
影响因子：
10.4
通讯作者：
Sun, Hong-Bo
中科院分区：
文献类型：
--
作者：
Song, Jun-Feng;Song, Jun-Feng;Sun, Hong-Bo;Sun, Hong-Bo
通过透明顶部金属电极发射白色光的白色顶部发射有机电致发光器件（WTOLED）已经作为节能固态光源和全色平板显示器的有希望的候选者而出现。由于使用金属电极而导致的微腔效应仅在特定颜色处导致发射增强，并且因此为WTOLED设置了障碍，其中应当发射具有平衡强度的至少两种颜色。目前解决该问题的努力基本上依赖于微腔效应的弛豫，导致在原始谐振区域中牺牲光出耦合效率。在这里，我们证明，通过集成的顶部金属电极上的光子晶体结构，一个额外的发射增强峰以外的一个确定的微腔共振可以提供由Tamm等离子体极化激元模式。模式杂交诱导的双混合模式，具有可比的光输出耦合效率，然后可以激发，从其中可以发出两种颜色的平衡强度。实验和理论结果表明，该模式混合策略为实现WTOELD的高白色色彩质量、改善观看特性和电致发光效率铺平了道路。
White top-emitting organic light-emitting devices (WTOLEDs), emitting white light through a transparent top metallic electrode, have emerged as promising candidates as energy-efficient solid-state lighting sources and full-color flat-panel displays. The microcavity effect due to usage of metallic electrodes results in emission enhancement solely at a particular color, and therefore sets an obstacle for WTOLEDs, where at least two colors with balanced intensity should be emitted. Current efforts solving the problem basically rely on the relaxation of the microcavity effect, resulting in sacrificed light outcoupling efficiency in the original resonance region. Here, we demonstrate that by integrating a photonic crystal structure upon the top metallic electrode, an additional emission enhancement peak other than the one determined by the microcavity resonance could be provided by the Tamm plasmon-polariton mode. Mode hybridization induced dual hybrid modes with comparable light outcoupling efficiency can then be excited, from which two colors with balanced intensity could be emitted. Both experimental and theoretical results demonstrate that the proposed mode hybridization strategy may pave the way for the realization of WTOELDs towards high white color quality, improved viewing characteristics, and electroluminescence efficiency.
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影响因子：
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作者：
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通讯作者：
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影响因子：
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