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Influence of nickel oxide nanolayer and doping in organic light-emitting devices
- Influence of nickel oxide nanolayer and doping in organic light-emitting devices
- Woo, S[Woo, Sungho]; Kim, J[Kim, Jaehyun]; Cho, G[Cho, Gwijeong]; Kim, K[Kim, Kangpil]; Lyu, H[Lyu, Hongkeun]; Kim, Y[Kim, Youngkyoo]
- DGIST Authors
- Woo, S[Woo, Sungho]; Kim, J[Kim, Jaehyun]; Kim, K[Kim, Kangpil]; Lyu, H[Lyu, Hongkeun]
- Issue Date
- Journal of Industrial and Engineering Chemistry, 15(5), 716-718
- Article Type
- Hole Injection; Nanolayer; NiO; OLED; Thermal Evaporation
- Here we report the effect of introducing nickel oxide (NiO) on the performance of organic light-emitting devices (OLEDs) based on small molecules. For the purpose of aligning the NiO deposition with the conventional OLED process, we employed a thermal evaporation method using the NiO powders. To understand the influence of the NiO introduction, we fabricated two types of devices: (1) OLED with the NiO nanolayer and (2) OLED with the NiO-doped hole transport layer. Results show that the NiO introduction improved the hole injection in both types of OLED. However, the device with the NiO nanolayer exhibited greatly improved efficiency, whereas the efficiency was significantly lowered for the device with the NiO-doped hole transport layer. © 2009 The Korean Society of Industrial and Engineering Chemistry.
- Korean Society of Industrial and Engineering Chemistry
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