CAJ | 학술논문

制备了一种荧光粉转换型白光有机发光二级管(pc-WOLEDs),器件由发蓝光的荧光装置和发红光的无机荧光粉Sr2Si5N8∶Eu2+颜色转化层(CCL)复合组成,前者通过真空镀膜得到,后者采用旋涂法制备.CCL发射的红光和未被吸收的蓝光复合产生白光,最大发光效率为22.1 cd/A,最大能量效率为11.26 lm/W,外量子效率为10.2％.该pc-WOLEDs的色坐标为(0.32,0.34),非常接近标准白光(0.33,0.33).稳定性实验结果显示,该器件在不同电流密度下表现出了良好的稳定性.
제비료일충형광분전환형백광유궤발광이급관(pc-WOLEDs),기건유발람광적형광장치화발홍광적무궤형광분Sr2Si5N8∶Eu2+안색전화층(CCL)복합조성,전자통과진공도막득도,후자채용선도법제비.CCL발사적홍광화미피흡수적람광복합산생백광,최대발광효솔위22.1 cd/A,최대능량효솔위11.26 lm/W,외양자효솔위10.2％.해pc-WOLEDs적색좌표위(0.32,0.34),비상접근표준백광(0.33,0.33).은정성실험결과현시,해기건재불동전류밀도하표현출료량호적은정성.
Phosphor-converted white organic light emitting diodes (pc-WOLEDs) are fabricated by combining blue OLED with red Sr2Si5N8∶ Eu2+ phosphor spin coated color conversion layer (CCL).The pc-WOLED shows maximum luminous efficiency of 22.1 cd/A,maximum power efficiency of 11.26 lm/W,external quantum efficiency of 10.2％ and CIE coordinates of (0.32,0.34).Moreover,the output spectral and CIE coordinates of the pc-WOLED have a small shift in different driving current density,which demonstrate good color stability.