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首页> 外文期刊>Optical Materials >Enhancement of spectral stability and outcoupling efficiency in organic light-emitting diodes with breath figure patterned microlens array films
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Enhancement of spectral stability and outcoupling efficiency in organic light-emitting diodes with breath figure patterned microlens array films

机译：呼吸图图案化的微透镜阵列膜增强了有机发光二极管的光谱稳定性和输出耦合效率

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摘要

We report outcoupling efficiency enhanced organic light-emitting diodes (OLEDs) using microlens array films prepared by a simple solution-processed imprinting technique with breath figure patterns. The films with breath figure micro-patterns (BFMP) effectively extract confined light in the glass substrate, which leads to the greatly improved outcoupling performance of OLEDs. We observe the enhancement of external quantum efficiency of the OLEDs employing the BFMP outcoupling film is about 1.51, corresponding to the enhancement of the power efficiency by a factor of 1.65. Moreover, the device with the outcoupling film shows the limited angle-dependency of emission spectrum over viewing angles. The BFMP films prepared with a low-cost, simple, and solution-processable fabrication process can pave the way to achieving high-performance OLEDs.
机译：我们报告使用微透镜阵列膜通过简单的溶液处理印迹技术和呼吸图图案制备的外耦合效率增强的有机发光二极管（OLED）。具有呼吸图微图案（BFMP）的薄膜可有效地将受限光提取到玻璃基板中，从而大大提高了OLED的输出耦合性能。我们观察到采用BFMP外耦合膜的OLED的外部量子效率提高了约1.51，相当于功率效率提高了1.65倍。此外，具有外耦合膜的装置显示出发射光谱在视角上有限的角度依赖性。以低成本，简单且可溶液加工的制造工艺制备的BFMP薄膜可为实现高性能OLED铺平道路。

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