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首页> 外文期刊>RSC Advances >Non-doped deep blue light-emitting electrochemical cells from charged organic small molecules
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Non-doped deep blue light-emitting electrochemical cells from charged organic small molecules

机译：来自带电有机小分子的非掺杂深蓝色发光电化学电池

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Blue emitters are still elusive for solid-state light-emitting electrochemical cells, and limit the development of white light emitting devices for display applications. We report the photophysical, electrochemical, thermal and electroluminescence properties of two charged organic deep blue-emitters. The synthesized materials showed intense blue fluorescence with high quantum efficiencies and good thermal stabilities. Single-layered non-doped LEC devices were fabricated from solution. The fabricated non-doped LEC devices exhibited deep blue electroluminescence centered at 432 and 434 nm with the CIE coordinates of (0.15, 0.09) and (0.16, 0.10), respectively for compounds 1 and 2 , which are quite close to the National Television System Committee (NTSC) standard for blue color coordinates. Electroluminescent devices operated at very low turn-on voltages reveal maximum luminance of 118 cd m ~(?2) for compound 1 and 136 cd m ~(?2) for compound 2 . These promising results are highly desirable for the development of low cost white light-emitting devices.
机译：蓝色发射器仍然难以实现固态发光电化学电影，并限制了用于显示应用的白光发光装置的开发。我们报告了两个带电有机深蓝色发射器的光物理，电化学，热电致发光性能。合成的材料显示出强烈的蓝色荧光，具有高量子效率和良好的热稳定性。单层非掺杂LEC器件由溶液制成。所制造的非掺杂LEC器件在432和434nm处表现出以432和434nm为中心的（0.15,0.09）和（0.16,0.10）的CIE坐标，用于化合物1和2，它们非常接近国家电视系统蓝色坐标委员会（NTSC）标准。在非常低的导通电压下操作的电致发光器件显示化合物2的化合物1和136cdm〜（α2）的最大亮度为118℃〜（α2）。这些有前途的结果对于开发低成本的白色发光装置非常理想。

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