Zobrazeno 1 - 10
of 250
pro vyhledávání: '"Joon Seop, Kwak"'
Autor:
Tae Kyoung Kim, Abu Bashar Mohammad Hamidul Islam, Yu-Jung Cha, Seung Hyun Oh, Joon Seop Kwak
Publikováno v:
Nanomaterials, Vol 12, Iss 8, p 1342 (2022)
This work proposes an InGaN/GaN multiple-quantum-well flip-chip blue ultrathin side-emitting (USE) light-emitting diode (LED) and describes the sidewall light emission characteristics for the application of backlight units in display technology. The
Externí odkaz:
https://doaj.org/article/6806b9a8d56e4e778498b4a51a9d2e10
Autor:
S. J. Richard Prabakar, Amol Bhairuba Ikhe, Woon Bae Park, Kee‐Choo Chung, Hwangseo Park, Ki‐Jeong Kim, Docheon Ahn, Joon Seop Kwak, Kee‐Sun Sohn, Myoungho Pyo
Publikováno v:
Advanced Science, Vol 6, Iss 24, Pp n/a-n/a (2019)
Abstract Herein, graphite is proposed as a reliable Ca2+‐intercalation anode in tetraglyme (G4). When charged (reduced), graphite accommodates solvated Ca2+‐ions (Ca‐G4) and delivers a reversible capacity of 62 mAh g−1 that signifies the form
Externí odkaz:
https://doaj.org/article/816acba6f4794d428b99d4a7bbdcd4a5
Publikováno v:
Nanomaterials, Vol 11, Iss 11, p 3045 (2021)
This work proposes the use of integrated high-power InGaN/GaN multiple-quantum-well flip-chip blue micro light-emitting diode (μ-LED) arrays on an AlGaN/GaN-based heterojunction field-effect transistor (HFET), also known as a high electron mobility
Externí odkaz:
https://doaj.org/article/37a2f66bd3d749fab9ac74b118c5398b
Autor:
A. B. M. Hamidul Islam, Tae Kyoung Kim, Yu-Jung Cha, Jae Won Seo, Jiun Oh, Jong-In Shim, Dong-Soo Shin, Joon Seop Kwak
Publikováno v:
Gallium Nitride Materials and Devices XVIII.
Publikováno v:
ASME 2022 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems.
The demand for high power and high-frequency radio frequency (RF) power amplifiers makes AlGaN/GaN high electron mobility transistors (HEMTs) an attractive option due to their large critical field, high saturation velocity, and reduced device footpri
Autor:
Sang-Wan Ryu, Nak-Won Jang, Naesung Lee, June Key Lee, Manoj Kumar Chandra Mohan, Tae Kyoung Kim, Joonmo Park, Moon Uk Cho, Joon Seop Kwak, Sang Kyun Shim
Publikováno v:
Current Applied Physics. 28:72-77
We report a 2-inch wide-area AlGaN-based ultraviolet (UV) – cathodoluminescence (CL) light source emission using electron beam (EB) pumped source under DC electric field from an AlGaN/GaN multi-quantum-well grown on a sapphire substrate. The EB-pum
Publikováno v:
Journal of Nanoscience and Nanotechnology. 21:3721-3728
We study the effect of thermal interface material such as thermal-conductive plastic on the dissipation of generated heat from the light-emitting diodes (LEDs) based headlamp for the application of environment-friendly green energy in vehicles. The t
Publikováno v:
ACS Photonics. 8:1041-1047
III-Nitride vertical-cavity surface-emitting lasers (VCSELs) have attracted much attention during the last two decades. Control of the laser polarization in VCSELs is one of the main challenges tha...
Autor:
A. B. M. Hamidul Islam, Tae Kyoung Kim, Yu-Jung Cha, Jae Won Seo, Dong-Soo Shin, Jong-In Shim, Joon Seop Kwak
Publikováno v:
Light-Emitting Devices, Materials, and Applications XXVI.
Publikováno v:
Gallium Nitride Materials and Devices XVII.