Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Dong-Soo Shi"'
Autor:
Sangjin Min, Won-Jin Choi, Dong Hwan Kim, Keuk Kim, Jaehyeok Park, Han-Youl Ryu, Jong-In Shim, Dong-Soo Shin
Publikováno v:
AIP Advances, Vol 14, Iss 10, Pp 105201-105201-4 (2024)
Red micro-light-emitting diodes (μ-LEDs) with AlGaInP/GaInP multiple quantum wells are fabricated with an oxide perimeter region to control the current injection path. When the values of the external quantum efficiency (EQE) of the 30 μm-size μ-LE
Externí odkaz:
https://doaj.org/article/7c1f442fe70c4de3bd3b63373d5269fe
Autor:
Dong-Guang Zheng, Hyeon-Dong Lee, Gyeong Won Lee, Dong-Soo Shin, Jeongwon Kim, Jong-In Shim, Zhiqun Lin, Tae-Woo Lee, Dong Ha Kim
Publikováno v:
Nano Research Energy, Vol 3, Iss 2, p e9120109 (2024)
Organic light-emitting diodes (OLEDs) have demonstrated remarkable advancements in both device lifetime and luminous efficiency. However, insufficient operation lifetime due to device degradation remains a major hurdle, especially for brighter device
Externí odkaz:
https://doaj.org/article/d0df1e0b1b9a4735a79f38b567bc574b
Autor:
Yung Ryel Ryu, Sung Ki Hong, E. Fred Schubert, Dong-Min Jeon, Dong-Soo Shin, Jong-In Shim, Sang-Mook Kim, Jong Hyeob Baek
Publikováno v:
AIP Advances, Vol 14, Iss 4, Pp 045215-045215-6 (2024)
We have developed a light-emitting device, called the ZOGAN light-emitting diode (LED). The ZOGAN LED is formed with the p-layer composed of both ZnO-based oxide and GaN-based nitride semiconductors. The ZOGAN LED shows the characteristics of light-e
Externí odkaz:
https://doaj.org/article/84b28cd810cc4b43af2f4a2f1b2c69e3
Publikováno v:
Electronics Letters, Vol 59, Iss 23, Pp n/a-n/a (2023)
Abstract The ideality factor of a diode gives the information on the current conduction or recombination processes occurring inside the device. The ideality factor obtained from the electrical current–voltage (I–V) characteristics by the conventi
Externí odkaz:
https://doaj.org/article/c0109b33a7aa4987aa8216361588e01d
Publikováno v:
ChemInform. 40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b289a2fc9c4b78bf06fc38887ea5fdb3
https://doi.org/10.1002/chin.200910156
https://doi.org/10.1002/chin.200910156
Publikováno v:
Advances in Condensed Matter Physics, Vol 2022 (2022)
Electronic and optical properties of type-II InGaN/GaNSb/GaN quantum-well (QW) structures are investigated by using the multiband effective mass theory for potential applications in red light-emitting diodes. The heavy-hole effective mass around the
Externí odkaz:
https://doaj.org/article/87f0a14b77a64d5a8fda6493d00356bf
Publikováno v:
Results in Chemistry, Vol 4, Iss , Pp 100260- (2022)
An easy and highly efficient one-pot synthesis of (E)-styrylperfluoroalkyl ketone from styrene using trifluoro-, pentafluoro-, heptafluoroacetic anhydride has been developed. This procedure mainly works on substituted styrene having electron donating
Externí odkaz:
https://doaj.org/article/ae0d6bd0692d45ddbcf02e57bbc3e84a
Publikováno v:
Journal of Preventive Medicine and Public Health, Vol 51, Iss 4, Pp 188-195 (2018)
Objectives This study aimed to examine the level of dementia knowledge of older Korean adults living alone in rural areas and to identify related factors. Methods A cross-sectional descriptive design was applied. The participants were 231 older adult
Externí odkaz:
https://doaj.org/article/845130d2a14047849b47044a979e25f4
Analysis of Transient Degradation Behaviors of Organic Light-Emitting Diodes under Electrical Stress
Publikováno v:
Applied Sciences, Vol 11, Iss 16, p 7627 (2021)
Despite the wide application of organic light-emitting diodes (OLEDs), the performance of OLED devices is sometimes limited by their reliabilities. In this paper, we report the transient degradation behaviors of fluorescent blue OLEDs, where both the
Externí odkaz:
https://doaj.org/article/457179b0fb09493bac6cd5634cc7d6a5
Publikováno v:
Applied Sciences, Vol 10, Iss 8, p 2751 (2020)
Drilling work on Inconel, a well-known super-heat-resistant alloy, requires a significant quantity of cutting oil to prevent heat-induced abrasion and damage to the cutting tool, caused by the strength and toughness of the alloy. This high requiremen
Externí odkaz:
https://doaj.org/article/78f4c33b7cb7498da965db869a519462