BROWSE
Detail
Journal Article
Luminance Enhancement of Top-emitting Blue Organic Light Emitting Diodes Encapsulated with Silicon Nitride Thin Films by a Double-layer Nano-structure
- Authors
- Doo-Hee Cho, Young-Sam Park, Sukyung Choi, Hyunsu Cho, Byoung-Hwa Kwon, Jin-Wook Shin, Nam Sung Cho
- Issue Date
- 2022-03
- Citation
- Optics Express, v.30, no.7, pp.11959-11972
- ISSN
- 1094-4087
- Publisher
- Optical Society of America (OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- Even though it is in high demand to introduce a nano-structure (NS) light extraction technology on a silicon nitride to be used as a thin film encapsulation material for an organic light-emitting diode (OLED), only an industry-incompatible wet method has been reported. This work demonstrates a double-layer NS fabrication on the silicon nitride using a two-step organic vapor phase deposition (OVPD) of an industry-compatible dry process. The NS showed a wrinkle-like shape caused by coalescence of the nano-lenses. The NS integrated top-emitting OLED revealed 40 percent enhancement of current efficiency and improvement of the luminance distribution and color change according to viewing angle.
- KSP Keywords
- Blue organic light emitting diodes, Double layer, Dry process, Extraction technology, Industry-compatible, Luminance enhancement, Nano-structures, Organic light-emitting diodes(OLEDS), Silicon Nitride, Thin film encapsulation, Two-Step