کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1264288 | 972119 | 2010 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Efficient phosphorescent white OLEDs with high color rendering capability Efficient phosphorescent white OLEDs with high color rendering capability](/preview/png/1264288.png)
By utilizing a newly developed deep-blue iridium complex along with efficient green and orange-red phosphors, we have successfully demonstrated efficient three-component phosphorescent white-emitting organic light-emitting devices (WOLEDs) with excellent performances. Such WOLEDs were based on the deep-blue phosphorescent OLEDs architecture with double emitting layers and double confining layers; portions of the deep-blue phosphors were selectively replaced with green and orange-red phosphors, thereby forming a structure with the green/orange-red emitting layers sandwiched between the two deep-blue emitting layers. Such three-component phosphorescent WOLEDs yielded a high color rendering index (CRI) of up to 94 and Commission Internationale de l’Eclairage (CIE) coordinates close to the ideal equal-energy white (0.33, 0.33). Furthermore, they exhibited rather stable colors and high CRI over a wide brightness range of 102–104 cd/m2 and yielded electroluminescence efficiencies of up to 10.3%, 24.0 cd/A and 16.4 lm/W for the forward directions.
Journal: Organic Electronics - Volume 11, Issue 3, March 2010, Pages 412–418