title: Out-coupling efficiency enhancement of organic light emitting diode device by SiO2-UV hardener composite layer.
abstract: The enhancement of out-coupling efficiency of organic light emitting diode (OLED) using SiO2-polymer composite layers was investigated. The SiO2-polymer composite was made from a SiO2 nanopowder and commercial UV-hardeners. The composite layer was coated on glass by dip-coating method in a SiO2 suspension, followed by spin-coating of 1 microm thick UV-hardener of was found that the optical properties were depend on the quantity of SiO2 nanopowder in the composite layer and dispersion of SiO2 suspension. 194/440 nm size of SiO2 nanopowders were added to the composite layer to enhance the light scattering effect. The OLED device which the SiO2-polymer composite layer was applied showed enhanced out-coupling efficiency around 30%.
authors: Department of Advanced Materials Engineering, Chosun University, Gwangju 501-759, Korea.
authors: Hyo Kyun
authors: HK
authors: Ham
authors: Yong Taeg
authors: YT
authors: Oh
authors: Seok Eui
authors: SE
authors: Choi
authors: Jong Woon
authors: JW
authors: Park
authors: BumHo
authors: B
authors: Choi
authors: Dong Chan
authors: DC
authors: Shin