Stable and efficient pure blue quantum-dot LEDs enabled by inserting an anti-oxidation layer
Henan University · University of Science and Technology of China · +4 more institutions
Abstract
Abstract The efficiency and stability of red and green quantum-dot light-emitting diodes have already met the requirements for commercialization in displays. However, the poor stability of the blue ones, particularly pure blue color, is hindering the commercialization of full-color quantum-dot light-emitting diode technology. Severe hole accumulation at the blue quantum-dot/hole-transport layer interface makes the hole-transport layer prone to oxidation, limiting the device operational lifetime. Here, we propose inserting an anti-oxidation layer (poly(p-phenylene benzobisoxazole)) between this interface to take in some holes from the hole-transport layer, which mitigates the oxidation-induced device…
Citation impact
- FWCI
- 14.49
- Percentile
- 100%
- References
- 42
Authors
13Topics & keywords
- Quantum dot
- Optoelectronics
- Light-emitting diode
- Materials science
- Brightness
- Diode
- Quantum efficiency
- Layer (electronics)