Research Topics
| Byoungchoo ParkSummaryAffiliation: Kwangwoon University Country: Korea Publications
|
Detail Information
Publications
Photonic crystal film with three alternating layers for simultaneous R, G, B multi-mode photonic band-gapsByoungchoo Park
Department of Electrophysics, Kwangwoon Univ, Wolgye Dong, Nowon Gu, Seoul 139 701, Korea
Opt Express 16:14524-31. 2008..Moreover, it was demonstrated that a 1-D PC of [a/b/c] structure can be used for making white organic light emitting devices (OLEDs) with improved color rendering index (CRI) for color display or lighting...
Polarized micro-cavity organic light-emitting devicesByoungchoo Park
Department of Electrophysics, Kwangwoon University, Seoul, Korea
Opt Express 17:7059-67. 2009..We demonstrated that the polarization and emission mode of the micro-cavity OLED may be selected by choosing the appropriate optical axis of the anisotropic 1-D PC film...
Polarized organic light-emitting device on a flexible giant birefringent optical reflecting polarizer substrateByoungchoo Park
Department of Electrophysics, Kwangwoon Univ, Wolgye Dong, Nowon Gu, Seoul, Korea
Opt Express 17:10136-43. 2009..Furthermore, the estimated polarization ratio between the brightness of two linearly polarized EL emissions parallel and perpendicular to the passing axis could be as high as 25 when measured over the whole emitted luminance range...
Circularly polarized unidirectional lasing from a cholesteric liquid crystal layer on a 1-D photonic crystal substrateByoungchoo Park
Department of Electrophysics, Kwangwoon Univ, Wolgye Dong, Nowon Gu, Seoul 139 701, Korea
Opt Express 17:12323-31. 2009..7. These results show that the CLC / 1-D PC device enables unidirectional lasing with highly circularly polarized laser emission....
Photovoltaic characteristics of polymer solar cells fabricated by pre-metered coating processByoungchoo Park
Department of Electrophysics, Kwangwoon Univ, Wolgye Dong, Nowon Gu, Seoul 139 701, Korea
Opt Express 17:13830-40. 2009..4.2% with a large active area. It was demonstrated that this pre-metered process for solution coating may be promising for achieving highly efficient, reliable, and large-area PSCs...
Polarized electroluminescence from organic light-emitting devices using photon recyclingByoungchoo Park
Department of Electrophysics, Kwangwoon University, Seoul, Korea
Opt Express 18:19824-30. 2010..e. the ratio between the brightness of two linearly polarized EL emissions parallel and perpendicular to the passing axis, is greater than 40 over the whole range of emitted luminance...
Spontaneous buckling in flexible organic light-emitting devices for enhanced light extractionByoungchoo Park
Department of Electrophysics, Kwangwoon Univ, Wolgye Dong, Nowon Gu, Seoul, Korea
Opt Express 19:A1117-25. 2011..3.1. These results show that spontaneous buckling yields patterned structures that offer considerable promise for the production of high performance, reproducible and reliable FOLEDs...
