通过有效限制三线态实现高效单发射层荧光/磷光混合白色有机发光器件。
Achieving highly efficient simple-emission layer fluorescence/phosphorescence hybrid white organic light-emitting devices via effective confinement of triplets.
作者信息
Ye Jun, Chen Zhan, An Feifei, Sun Mingliang, Mo Hin-Wai, Zhang Xiaohong, Lee Chun-Sing
机构信息
Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Sciences, City University of Hong Kong , Tat Chee Avenue, Hong Kong SAR, P. R. China.
出版信息
ACS Appl Mater Interfaces. 2014 Jun 25;6(12):8964-70. doi: 10.1021/am502429e. Epub 2014 Jun 5.
Achieving high efficiencies in simple device configurations is a long-standing and meaningful target for organic light-emitting devices (OLEDs). Herein, by utilizing an efficient blue-violet fluorophor (CzS1) that has a high triplet energy of 2.62 eV, the significance of effective confinement of the green triplets in fluorescence/phosphorescence hybrid white devices (F/P-WOLEDs) that have highly simplified emission layers (EMLs) containing only RGB emitters was demonstrated. The non-p-i-n warm-white device exhibited excellent performance with a maximum forward power efficiency high up to 42.1 lm W(-1), and maintaining at 26.3 lm W(1-) at a practical luminance of 1000 cd m(-2).
在简单的器件结构中实现高效率是有机发光器件（OLED）长期以来的一个有意义的目标。在此，通过利用一种具有2.62 eV高三重态能量的高效蓝紫色荧光体（CzS1），证明了在仅包含RGB发射体的高度简化发射层（EML）的荧光/磷光混合白色器件（F/P-WOLED）中有效限制绿色三重态的重要性。非p-i-n暖白色器件表现出优异的性能，最大正向功率效率高达42.1 lm W⁻¹，在1000 cd m⁻²的实际亮度下保持在26.3 lm W⁻¹。
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