【摘要】 白光有机发光二极管（WOLEDs）由于面光源、可柔性、轻薄、自发光等优势而广泛应用于显示和照明领域。目前，高效溶液处理的混合白光有机发光二极管很少被报道。本文选择蓝色热致延迟荧光材料DMAC-DPS作为传统橙色磷光材料PO-01-TB的敏化主体，制备了热活化敏化的杂化单发光层有机发光二极管白光器件，分析了器件能量传递机制。通过主客体掺杂浓度调控，实现了外部量子效率最高为8.00%、电流效率为22.32 cd/A、对应CIE坐标（0.405,0.497）及色温为4 059 K的暖白光OLED器件，增加空穴阻挡层DPEPO有效地提高了器件的光谱稳定性，实现了更小的ΔCIE (0.017,0.016)。更多还原

【Abstract】 White organic light-emitting diodes(WOLEDs) are widely used in display and lighting applications due to the advantages of surface light source, flexibility, thinness, and self-emission. Highly efficient solution-processed hybrid white light-emitting organic light-emitting diodes(WOLEDs) are seldom reported. In this paper, we chose the blue thermally delayed fluorescent material DMAC-DPS to be the sensitised host of the conventional orange phosphorescent material PO-01-TB, and prepared thermally activated sensitised hybrid single light-emitting layer organic light-emitting diode white-light devices, and analysed the mechanism of the energy transfer of the devices.The highest external quantum efficiency of 8. 00%, current efficiency of 22. 32 cd/A, corresponding to the CIE coordinates(0. 405, 0. 497) and a warm white OLED device with a color temperature of 4 059 K were achieved through the modulation of the doping concentration of the host and the guest. The addition of a hole-blocking layer, DPEPO, effectively improves the spectral stability of the device and achieves a smaller ΔCIE(0. 017, 0. 016). This study inspires the development of efficient WOLEDs in the future.更多还原