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Light Extraction from Organic Light Emitting Diodes Using Chemically Etched Glass Substrates
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- Authors
- Doo-Hee Cho, Jin-Wook Shin, Jeong-Ik Lee, Jonghee Lee, Jun-Han Han, Hye Yong Chu
- Issue Date
- 2012-04
- Citation
- Journal of Nanoscience and Nanotechnology, v.12, no.4, pp.3447-3450
- ISSN
- 1533-4880
- Publisher
- American Scientific Publishers (ASP),
- Language
- English
- Type
- Journal Article
- Abstract
- We have manufactured highly efficient OLED devices fabricated on chemically etched glass substrates. The external quantum efficiency of the OLED devices with the etched glass substrates was increased by 5~27% in comparison with the reference flat glass substrate. Surface morphology, such as indented patterns, significantly affected the external luminance efficiency. A clean surface and the presence of smooth bent edges of indented patterns were found to be important for improving the external luminous efficacy. © 2012 American Scientific Publishers.
- KSP Keywords
- External Quantum Efficiency, Luminance efficiency, OLED devices, Organic light-emitting diodes(OLEDS), flat Glass substrate, highly efficient, light extraction, light-emitting diode(LED), luminous efficacy, surface morphology