title: Light extraction from organic light emitting diodes using chemically etched glass substrates.
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.
authors: OLED Lighting Team, Convergence Components and Materials Research Laboratory, ETRI, 138 Gajeongno, Yuseong-Gu, Daejeon 305-350, Korea.
authors: Doo-Hee
authors: DH
authors: Cho
authors: Jin-Wook
authors: JW
authors: Shin
authors: Jeong-Ik
authors: JI
authors: Lee
authors: Jonghee
authors: J
authors: Lee
authors: Jun-Han
authors: JH
authors: Han
authors: Hye Yong
authors: HY
authors: Chu