Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Geun-Su Choi"'
Publikováno v:
Nanomaterials, Vol 13, Iss 16, p 2366 (2023)
We report the electroluminescence (EL) characteristics of blue ultra-thin emissive layer (U-EML) phosphorescent (PH) organic light-emitting diodes (OLED) and thermally activated delayed fluorescence (TADF) OLED. A variety of transport layer (TL) mate
Externí odkaz:
https://doaj.org/article/bbe5274faf2749518af5e0f9e5f5f2fc
Publikováno v:
Nanomaterials, Vol 13, Iss 15, p 2253 (2023)
This study investigates the application of scattering structures to the metal layer in a DMD (Dielectric/Metal/Dielectric) configuration through plasma treatment. The purpose is to enhance the light extraction efficiency of organic light-emitting dio
Externí odkaz:
https://doaj.org/article/39af96b7eba34f8c9b81043b5a2d0e33
Publikováno v:
Nanomaterials, Vol 13, Iss 15, p 2216 (2023)
In this study, we demonstrated organic light-emitting diodes (OLEDs) outcoupling with a flexible polydimethylsiloxane (PDMS) film with a micro-convex structure using the breath figure (BF) method. We can easily control the micro-convex pattern by adj
Externí odkaz:
https://doaj.org/article/92eb1fcee60748a0b68945cdf0f4233f
Autor:
Eun-Jeong Bae, Shin-Woo Kang, Geun-Su Choi, Eun-Bi Jang, Dong-Hyun Baek, Byeong-Kwon Ju, Young-Wook Park
Publikováno v:
Nanomaterials, Vol 12, Iss 8, p 1266 (2022)
In this study, an external light extraction layer with a micro-nano hybrid structure was applied to improve the external light extraction efficiency of organic light-emitting diodes (OLEDs). A reactive ion-etching (RIE) process, using O2 and CHF3 pla
Externí odkaz:
https://doaj.org/article/f3ff884a831549bc90fcfd5d163e0c59
Autor:
Geun-Su Choi, Shin-Woo Kang, Eun-Jeong Bae, Eun-Bi Jang, Dong-Hyun Baek, Byeong-Kwon Ju, Young-Wook Park
Publikováno v:
Nanomaterials, Vol 12, Iss 9, p 1430 (2022)
In this study, we fabricated a random nanostructure (RNS) external light extraction composite layer containing high-refractive-index nanoparticles through a simple and inexpensive solution process and a low-temperature mask-free process. We focused o
Externí odkaz:
https://doaj.org/article/e117650419df490e9a5326f92dc481ae
Publikováno v:
Journal of Nanoscience and Nanotechnology. 21:4208-4211
In this study, we report the effects of the substrate rotational speed on the morphological characteristics of lithium fluoride (LiF) during thermal evaporation. LiF is used as a typical material in a vacuum-level shift-based electron injection layer
Publikováno v:
Journal of nanoscience and nanotechnology. 21(8)
In this paper, we report on the effects of the substrate thermal evaporation process rotation speed on the electroluminescence (EL) characteristics of organic light-emitting diodes (OLEDs). In general OLED research, rotational and angle tilted deposi
Publikováno v:
Journal of nanoscience and nanotechnology. 20(11)
The phenomenon by which the efficiency decreases rapidly with the increase in luminance or current density in organic light-emitting diodes is termed efficiency roll-off. In particular, phosphorescent organic light-emitting diodes are known to have h