Zobrazeno 1 - 10
of 346
pro vyhledávání: '"Jaehee Cho"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Nanoporous Pt films fabricated by oblique angle deposition hold potential as electrocatalysts in various energy-related fields owing to their high surface area, structural stability, and adequate conductivity. In this study, we investigated
Externí odkaz:
https://doaj.org/article/20347eb3776746d9b91381e09ed35096
Publikováno v:
Materials, Vol 17, Iss 21, p 5385 (2024)
We investigated hybrid functional transparent conductive electrodes (HFTCEs) composed of indium-tin-oxide (ITO) and silver nanowires (AgNWs) for the enhancement of output efficiency in GaN-based ultraviolet light-emitting diodes (UVLEDs). The HFTCEs
Externí odkaz:
https://doaj.org/article/55fa9a91450148ca90c78893e2ee39d7
Autor:
Hyungsuk Kim, Jaehee Cho
Publikováno v:
선진국방연구, Vol 6, Iss 3 (2023)
This study was designed to determine the characteristics and tendencies of drones, which have emerged as a key weapon system in the Russian-Ukrainian War since 2022, and their use in modern warfare. A spatiotemporal analysis was conducted on 5,491 co
Externí odkaz:
https://doaj.org/article/1075114db85b42269b35357ef5eadcbf
Autor:
Bhishma Pandit, Hyeon‐Sik Jang, Yunjo Jeong, Sangmin An, S. Chandramohan, Kyung Kyu Min, Sang Min Won, Chel‐Jong Choi, Jaehee Cho, Seongin Hong, Keun Heo
Publikováno v:
Advanced Materials Interfaces, Vol 10, Iss 12, Pp n/a-n/a (2023)
Abstract The advantageous role of 2D electron gas presence at the AlGaN/GaN interface attracts huge interest in the field of GaN‐based ultraviolet photodetector technology. However, the presence of high dark current deteriorates the photodetector p
Externí odkaz:
https://doaj.org/article/7e01a6635329401b89a9f394406192bf
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-7 (2020)
Abstract A dual-functional ultraviolet (UV) photodetector with a large UV-to-visible rejection ratio is presented, in which interdigitated finger-type two-dimensional graphene electrodes are introduced to an AlGaN/GaN heterostructure. Two photocurren
Externí odkaz:
https://doaj.org/article/0e0c4535cf074727811785f75ac066fe
Design of a CMOS Image Sensor with Bi-Directional Gamma-Corrected Digital-Correlated Double Sampling
Publikováno v:
Sensors, Vol 23, Iss 2, p 1031 (2023)
We present a 640 × 480 CMOS image sensor (CIS) with in-circuit bi-directional gamma correction with a proposed digital-correlated double sampling (CDS) structure. To operate the gamma correction in the CIS, the transfer function of the analog-to-dig
Externí odkaz:
https://doaj.org/article/ade0c0d777bd48d6a3fd84cc40e68cde
Autor:
Bhishma Pandit, Jaehee Cho
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115322-115322-7 (2021)
Solar-blind deep-ultraviolet (UV) photodetectors (PDs) with high responsivity and fast response have attracted significant attention in environmental, industrial, biological, and military applications. AlGaN is a representative semiconductor material
Externí odkaz:
https://doaj.org/article/d0a2d685005446e485648fc47ea05422
Publikováno v:
AIP Advances, Vol 11, Iss 4, Pp 045314-045314-6 (2021)
A graphene Schottky contact was fabricated on an AlGaN/GaN heterostructure and subsequently analyzed. The calculated and experimentally measured Schottky barrier heights (SBHs) determined using the theoretical Schottky–Mott model, the thermionic em
Externí odkaz:
https://doaj.org/article/054904e83ce74472b93594e2223bd635
Publikováno v:
AIP Advances, Vol 10, Iss 4, Pp 045135-045135-6 (2020)
The junction temperature, one of the major parameters that strongly affect the performance of light-emitting diodes (LEDs), increases during operation because of the power dissipated as heat within an LED device. Therefore, LED devices with poor char
Externí odkaz:
https://doaj.org/article/d998fb9982bc483b81dba68679ba0918
Autor:
Jaehee Cho, Jong Kyu Kim
Publikováno v:
AIP Advances, Vol 9, Iss 10, Pp 100901-100901-4 (2019)
As the next-generation display technology, microscale light-emitting diode (μ-LED) displays have attracted significant attention recently. For applying μ-LEDs as direct emissive pixels in everyday display applications, many chips in a relatively sm
Externí odkaz:
https://doaj.org/article/83dce821283243bdb61a7d2117c73b50