Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Kyu Nyun Kim"'
Autor:
Ju Hyun Hwang, Hong Seok Jo, Sun Gyu Jung, Yong Sub Shim, Young Wook Park, Byeong Kwon Ju, Seongpil An, Cheol Hwee Park, Hyun Jun Lee, Sam S. Yoon, Kyu Nyun Kim
Publikováno v:
ACS Applied Materials & Interfaces. 7:68-74
We fabricated a PAN (polyacrylonitrile) NF (nanofiber)-embedded composite layer to adjust the light-control layer in light-emitting-diode (LED) and organic-light-emitting-diode (OLED) lighting systems with unique optical characteristics, for effectiv
Autor:
Hyun Jun Lee, Sun Gyu Jung, Byeong Kwon Ju, Cheol Hwee Park, Yong Sub Shim, Kyung Bok Choi, Kyu Nyun Kim, Young Wook Park, Ju Hyun Hwang
Publikováno v:
Advanced Functional Materials. 24:6414-6421
In this study, organic light-emitting diodes (OLEDs) with enhanced optical properties are fabricated by inserting a nanosized stripe auxiliary electrode layer (nSAEL) between the substrate and an indium tin oxide (ITO) layer. This design can avoid th
Autor:
Cheol Hwee Park, Kyu Nyun Kim, Sun Gyu Jung, Yong Sub Shim, Young Wook Park, Byeong Kwon Ju, Ju Hyun Hwang
Publikováno v:
Nanotechnology. 28(4)
Despite their generally good performance, photonic crystal (PC)-based organic light-emitting diodes (OLEDs) encounter a serious spectral distortion problem. In this study, we obtained spectral-distortion-free PC-based OLEDs by lowering the pitch (per
Autor:
Ju Hyun Hwang, Bong Han Bae, Sun Gyu Jung, Cheol Hwee Park, Yong Sub Shim, Chan Hyuk Park, Kyu Nyun Kim, Young Wook Park, Dong Jun Lee, Byeong Kwon Ju, Hyun Jun Lee
Publikováno v:
SID Symposium Digest of Technical Papers. 46:1647-1649
A hybrid buffer layer with superior plasma protection ability and high injection efficiency was developed. The hybrid buffer layer composed by dual-layered structure of HATCN/MoO3 enhances hole-injection efficiency and protects organic layers under t
Autor:
Ju Hyun Hwang, Cheol Hwee Park, Young Wook Park, Byeong Kwon Ju, Sun-Gyu Jung, Yong Sub Shim, Kyu Nyun Kim, Hyun Jun Lee
Publikováno v:
SID Symposium Digest of Technical Papers. 46:1699-1701
Organic light emitting diodes (OLEDs) with nanoscale corrugation for light extraction (NCLE) enhanced the current efficiency and power efficiency. The haze of the nanoscale corrugation for light extraction is comparable to that of bare glass. Further
Autor:
Sun Gyu Jung, Chan Hyuk Park, Byeong Kwon Ju, Cheol Hwee Park, Bong Han Bae, Kyu Nyun Kim, Hyun Jun Lee, Young Wook Park, Ju Hyun Hwang, Dong Jun Lee, Yong Sub Shim
Publikováno v:
SID Symposium Digest of Technical Papers. 46:1704-1706
In this study, we report the thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs) having enhanced efficiency. We optimized TADF OLED by HTL, ETL materials and thickness. An enhanced power efficiency, current efficienc
Autor:
Young Wook Park, Sun Gyu Jung, Byeong Kwon Ju, Ju Hyun Hwang, Kyu Nyun Kim, Yong Sub Shim, Kyung Bok Choi, Cheol Hwee Park, Hyun Jun Lee
Publikováno v:
ACS Applied Materials & Interfaces. 5:10397-10403
We demonstrate a flexible, transparent, and conductive composite electrode comprising silver nanowires (Ag NWs), and indium-doped zinc oxide (IZO) layers. IZO is sputtered onto an Ag NW layer, with the unique structural features of the resulting comp
Autor:
Young Wook Park, Yong Sub Shim, Sun Gyu Jung, Kyu Nyun Kim, Cheol Hwee Park, Byeong Kwon Ju, Ju Hyun Hwang, Hyun Jun Lee
Publikováno v:
SID Symposium Digest of Technical Papers. 45:1206-1208
The hybrid Ag NW/IZO thin electrode shows a remarkable electrochemical stability, strong adhesiveness, and outstanding flexibility, as well as enhanced electrical conductivity and great optical transparency. The newly designed hybrid electrode enable
Autor:
Kyung Bok Choi, Hyun Jun Lee, Young Wook Park, Byeong Kwon Ju, Kyu Nyun Kim, Ju Hyun Hwang, Cheol Hwei Park, Yong Sub Shim, Sun Gyu Jung
Publikováno v:
SID Symposium Digest of Technical Papers. 45:1533-1535
In this study, we demonstrate high-efficiency distortion-free spectrum Organic Light-Emitting Diodes (OLEDs) using photonic crystal (PC) and micro lens array (MLA). The PC structure is fabricated by laser interference lithography (LIL), which enables
Autor:
Sun Gyu Jung, Kyu Nyun Kim, Ju Hyun Hwang, Young Wook Park, Kyung Bok Choi, Cheol Hwee Park, Byeong Kwon Ju, Yong Sub Shim, Hyun Jun Lee
Publikováno v:
SID Symposium Digest of Technical Papers. 45:1530-1532
Organic light emitting diode (OLED) lighting with a highly improved efficiency and low haze is demonstrated by selective microlens arrays (SMLAs). Black grid lines in the emission region became brighter with a low haze using the SMLAs, and the spectr