1. Highly Efficient Three Primary Color Organic Single-Crystal Light-Emitting Devices with Balanced Carrier Injection and Transport.
- Author
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Ding, Ran, Feng, Jing, Dong, Feng‐Xi, Zhou, Wei, Liu, Yang, Zhang, Xu‐Lin, Wang, Xue‐Peng, Fang, Hong‐Hua, Xu, Bin, Li, Xian‐Bin, Wang, Hai‐Yu, Hotta, Shu, and Sun, Hong‐Bo
- Subjects
LIGHT emitting diodes ,SINGLE crystals ,OPTOELECTRONICS ,CRYSTAL structure ,DOPING agents (Chemistry) ,THERMAL stability - Abstract
Organic single crystals have a great potential in the field of organic optoelectronics because of their advantages of high carrier mobility and high thermal stability. However, the application of the organic single crystals in light-emitting devices (OLEDs) has been limited by single-layered structure with unbalanced carrier injection and transport. Here, fabrication of a multilayered-structure crystal-based OLED constitutes a major step toward balanced carrier injection and transport by introducing an anodic buffer layer and electron transport layer into the device structure. Three primary color single-crystal-based OLEDs based on the multilayered structure and molecular doping exhibit a maximum luminance and current efficiency of 820 cd cm
−2 and 0.9 cd A−1 , respectively, which are the highest performance to date for organic single-crystal-based OLEDs. This work paves the way toward high-performance organic optoelectronic devices based on the organic single crystals. [ABSTRACT FROM AUTHOR]- Published
- 2017
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