title: Omnidirectional emission from top-emitting organic light-emitting devices with microstructured cavity.
abstract: We demonstrate optimized viewing-angle characteristics from top-emitting organic light-emitting devices by integrating a periodic microstructure into the cavity. A holographic lithography technique combined with filling process of the groove by spin coating of a polymer film has been employed to enable its periodically and gradually changed cavity length and suppress the viewing-angle dependence of the peak emission wavelength and intensity. The theoretical and experimental results support that the proposed microstructured cavity can resolve the angular-dependence effect in a very simple and effective way, and a desired omnidirectional emission has been obtained.
authors.affiliation: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, China.
authors.forename: Yue-Feng
authors.initials: YF
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Feng
authors.forename: Yan-Gang
authors.initials: YG
authors.lastname: Bi
authors.forename: Jun-Feng
authors.initials: JF
authors.lastname: Song
authors.forename: Yu
authors.initials: Y
authors.lastname: Jin
authors.forename: Yu
authors.initials: Y
authors.lastname: Bai
authors.forename: Qi-Dai
authors.initials: QD
authors.lastname: Chen
authors.forename: Hong-Bo
authors.initials: HB
authors.lastname: Sun