title: Random nanostructure scattering layer for suppression of microcavity effect and light extraction in OLEDs.
abstract: In this study, we investigated the effect of a random nanostructure scattering layer (RSL) on the microcavity and light extraction in organic light emitting diodes (OLEDs). In the case of the conventional OLED, the optical properties change with the thickness of the hole transporting layer (HTL) because of the presence of a microcavity. However, OLEDs equipped with the an RSL showed similar values of external quantum efficiency and luminous efficacy regardless of the HTL thickness. These phenomena can be understood by the scattering effect because of the RSL, which suppresses the microcavity effect and extracts the light confined in the device. Moreover, OLEDs with the RSL led to reduced spectrum and color changes with the viewing angle.
authors: Jin-Wook
authors: JW
authors: Shin
authors: Doo-Hee
authors: DH
authors: Cho
authors: Jaehyun
authors: J
authors: Moon
authors: Chul Woong
authors: CW
authors: Joo
authors: Jonghee
authors: J
authors: Lee
authors: Jin Woo
authors: JW
authors: Huh
authors: Seung Koo
authors: SK
authors: Park
authors: Jun-Han
authors: JH
authors: Han
authors: Nam Sung
authors: NS
authors: Cho
authors: Joohyun
authors: J
authors: Hwang
authors: Hye Yong
authors: HY
authors: Chu
authors: Jeong-Ik
authors: JI
authors: Lee