Thermally Activated Delayed Fluorescence Sensitized Phosphorescence: A Strategy To Break the Trade-Off between Efficiency and Efficiency Roll-Off

• Published in: ACS applied materials & interfaces Vol. 7; no. 28; pp. 15154 - 15159
• Main Authors: Li, Chen, Duan, Lian, Zhang, Dongdong, Qiu, Yong
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 22.07.2015
• Subjects: energy transfer; fluorescence; phosphorescence; efficiency roll-off; quantum efficiency; exciton annihilation; exciton dynamics; organic light-emitting diodes

Materials with thermally activated delayed fluorescence (TADF) realized 100% internal quantum efficiency (IQE) but suffered significant efficiency roll-off. Here, an exciton dynamics study reveals that materials with TADF may play opposite roles in affecting the efficiency roll-off: decreasing the t...