Zobrazeno 1 - 10 of 63 pro vyhledávání: '"Im Taek Yoon"'
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Akademický článek
Polarity Control of ZnO Films Grown on Ferroelectric (0001) LiNbO3 Substrates without Buffer Layers by Pulsed-Laser Deposition
Autor: Im Taek Yoon, Juwon Lee, Ngoc Cuong Tran, Woochul Yang
Publikováno v: Nanomaterials, Vol 10, Iss 2, p 380 (2020)
For this study, polarity-controlled ZnO films were grown on lithium niobate (LiNbO3) substrates without buffer layers using the pulsed-laser deposition technique. The interfacial structure between the ZnO films and the LiNbO3 was inspected using high
Externí odkaz: https://doaj.org/article/50a90f114650489792bc66b54d9b9c60
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4
Two-step preparation and characterization of ZnO Core–Si shell coaxial nanorods
Autor: Hak Dong Cho, Im Taek Yoon
Publikováno v: Journal of Theoretical and Applied Physics. 14:9-16
This study compares and analyzes the key characteristics of the ZnO core–Si shell coaxial nanorod (Si@ZnO NR) heterostructures that were grown on semi-insulating, (100)-oriented Si substrates at Si layer temperatures of 450, 500, 550 and 600 °C fo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea87cea69b59db285f39d82e0edbde55
https://doi.org/10.1007/s40094-020-00398-x
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5
Fabrication and characterization of Mn-implanted GaN layers followed by annealing
Autor: Im Taek Yoon, Dejun Fu
Publikováno v: Journal of Theoretical and Applied Physics. 14:17-25
We report the effect of Mn incorporation on the structural and optical properties of GaN grown on a sapphire substrate in a plasma-enhanced molecular-beam epitaxy system followed by Mn ion implantation and annealing. The crystalline quality and phase
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd1180f592192f0cf9b966fd734fc676
https://doi.org/10.1007/s40094-020-00399-w
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Accounting for the thermo-stability of PdHx (x = 1–3) by density functional theory
Autor: Im Taek Yoon, Wei Luo, Yunbin He, Dongxue Meng, Debing Long, Rajeev Ahuja, Mingkai Li
Publikováno v: International Journal of Hydrogen Energy. 43:18372-18381
We calculate the formation enthalpies of PdHx (x = 0–3) by cluster expansion (CE) and calculations based on density functional theory. CE predicts the stable palladium hydride structures PdH, PdH2.67, and PdH2.75. The band structures and density of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ee8755d3023b2fd8a24c23ba31483240
https://doi.org/10.1016/j.ijhydene.2018.08.030
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Proton beam flux dependent work function of mono-layer MoS2
Autor: You Joong Kim, Soo Ho Choi, Im Taek Yoon, Woochul Yang, Sangwoo Kwon
Publikováno v: Thin Solid Films. 660:766-770
Monolayer (ML)-molybdenum disulfide (MoS2) with a direct band gap of ~1.8 eV exhibits considerable potential for advanced electronic and optical device applications. The surface electronic properties of ML-MoS2 need to be controlled for developing no
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9df870100f037fda62250d44549e4a2b
https://doi.org/10.1016/j.tsf.2018.03.078
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8
Influence of the Quantum Well Structure and Growth Temperature on a Five-Layer InGaMnAs Quantum Well with an InGaAs Buffer Layer
Autor: Dmitry Roshchupkin, Sejoon Lee, Im Taek Yoon, Gennady N. Panin
Publikováno v: Journal of Nanoscience and Nanotechnology. 18:4355-4359
The influence of quantum well structure and growth temperature on a synthesized multilayer system composed of a five-layer InMnGaAs quantum well with an InGaAs buffer layer grown on semi-insulating (100)-oriented substrates prepared by low temperatur
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54bb2426ed39b8429017aa916387d4bd
https://doi.org/10.1166/jnn.2018.15008
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9
Low-temperature photoluminescence of WO3 nanoparticles
Autor: Kwun-Bum Chung, Im Taek Yoon, Tae Won Kang, Deuk Young Kim, Hak Dong Cho, Sh. U. Yuldashev
Publikováno v: Journal of Luminescence. 195:344-347
In this paper we report the results on the study of the low-temperature photoluminescence of WO3 nanoparticles uncoated and coated by carbon. The photoluminescence spectra of WO3 nanoparticles at T = 15 K demonstrate the two sharp emission bands at 3
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34c705472127ec5b81dbe12a6ec0da8d
https://doi.org/10.1016/j.jlumin.2017.11.053
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Enhanced Structural and Luminescent Properties of Carbon-Assisted ZnO Nanorod Arrays on (100) Si Substrate
Autor: Sejoon Lee, Dmitry Roshchupkin, Im Taek Yoon, Hak Dong Cho
Publikováno v: Journal of Electronic Materials. 47:4404-4411
We have fabricated as-grown ZnO nanorods (NRs) and carbon-assisted NR arrays on semi-insulating (100)-oriented Si substrates. We compared the structural and luminescent properties of them. High-resolution transmission microscopy, field emission scann
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8bbb2adc0ec238446deae19763f4e5d
https://doi.org/10.1007/s11664-018-6106-z
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