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Korean J. Met. Mater.
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Author is indexed since 2016
Author :
Dooho Choi
7 Articles
511
Thickness Dependence of Cu-layer-based Transparent Heaters
Cu 박막의 두께 변화에 따른 면상발열체 특성 연구
Dooho Choi최두호
Korean J. Met. Mater.
2022;60(7):511-516. Published online 2022 Jun 3
DOI:
https://doi.org/10.3365/KJMM.2022.60.7.511
Abstract
In this study, ultrathin (4-40 nm) Cu-layer-based transparent heaters prepared on glass substrates were investigated for cost-effective applications. The Cu heaters were embedded between ZnO layers serving as anti-reflection and anti-corrosion layers. The Cu layer thicknesses varied in the range of 4-40 nm, and the corresponding structural, electrical, optical and.....
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664
Fabrication of Semi-transparent W film Heaters via Phase Transformation
텅스텐 나노박막의 상변태를 이용한 반투명 면상발열체 형성 연구
Jiyun Choi, Dooho Choi최지윤, 최두호
Korean J. Met. Mater.
2021;59(9):664-669. Published online 2021 Aug 4
DOI:
https://doi.org/10.3365/KJMM.2021.59.9.664
Abstract
In this study, we prepared highly thermostable semi-transparent heaters composed of W layers with thicknesses of 1-20 nm, on which a 30 nm-thick ZnO layer was deposited to serve as an anti-oxidation barrier. The optical transmittance and sheet resistance of the heaters could be greatly modulated by varying the W.....
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Cited By 1
155
Simultaneous Improvement in the Corrosion Resistance and Visible Transparency of ZnO/Cu/ZnO Transparent Heaters with Reactively Sputtered Al
2
O
3
Layers
반응성 스퍼터링법으로 제조된 Al
2
O
3
막을 이용한 ZnO/Cu/ZnO 투명 히터의 내식성과 투과도 개선 연구
Geumhyuck Bang, Dooho Choi방금혁, 최두호
Korean J. Met. Mater.
2021;59(3):155-161. Published online 2021 Feb 19
DOI:
https://doi.org/10.3365/KJMM.2021.59.3.155
Abstract
In this study, we report a methodology that simultaneously improved the corrosion resistance and visible transparency of ZnO/Cu/ZnO transparent heaters with the addition of reactively sputtered Al
2
O
3
layers. To assess corrosion resistance, ZnO and Al
2
O
3
layers with thicknesses in the range of 0-20 nm were deposited onto 20 nm-thick Cu.....
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Cited By 2
715
Deposition of Low-Resistivity Aluminum Thin Films Via Application of Substrate Bias During Magnetron Sputtering
기판 바이어스와 스퍼터 압력 조절을 통한 저저항 알루미늄 박막 형성 연구
Dooho Choi최두호
Korean J. Met. Mater.
2020;58(10):715-720. Published online 2020 Oct 5
DOI:
https://doi.org/10.3365/KJMM.2020.58.10.715
Abstract
In this study, the critical role of substrate bias during the sputter deposition of Al thin films is discussed. Two sets of Al thin films having a nominal thickness of 300 nm were deposited at sputtering pressures of 4.1 and 1.5 mTorr, respectively, with an applied negative substrate bias in.....
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Cited By 1
795
Optimization of ZnO/Cu/ZnO Flexible Transparent Conductive Electrodes Fabricated by Magnetron Sputtering
마그네트론 스퍼터링법으로 제조된 ZnO/Cu/ZnO 유연 투명전극 성능 최적화 연구
Daekyun Kim, Taehyeong Lee, Dooho Choi김대균, 이태형, 최두호
Korean J. Met. Mater.
2019;57(12):795-800. Published online 2019 Nov 22
DOI:
https://doi.org/10.3365/KJMM.2019.57.12.795
Abstract
With the expanding development of flexible optoelectronic devices, the need for high-performance (i.e., high conductivity, high transmittance and flexibility) transparent conductive electrodes has grown. In this study, the critical role of thickness for each of the layers in ZnO/Cu/ZnO transparent conductive electrodes (TCE) for optoelectronic devices has been investigated. The.....
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Cited By 6
91
Optimization of ZnO/Ag/ZnO Transparent Conductive Electrodes Fabricated by Magnetron Sputtering
스퍼터링법으로 증착된 ZnO/Ag/ZnO 투명전극의 성능 최적화 연구
Woo Hyeon Jo, Dooho Choi조우현, 최두호
Korean J. Met. Mater.
2019;57(2):91-96. Published online 2019 Jan 11
DOI:
https://doi.org/10.3365/KJMM.2019.57.2.91
Abstract
The critical role of the thicknesses of the top and bottom oxide layers, as well as Ag layer, in ZnO/Ag/ZnO transparent conductive electrodes were investigated. The Ag forms a nearly continuous layer at the thickness of 8 nm, at which the Ag sheet resistance of 8.0 Ω/Sq. is lower than.....
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Cited By 9
605
Potential of Ruthenium and Cobalt as Next-generation Semiconductor Interconnects
Ru와 Co의 차세대 반도체 배선 적용성 연구
Dooho Choi최두호
Korean J. Met. Mater.
2018;56(8):605-610. Published online 2018 Aug 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.8.605
Abstract
Severe resistivity size effect in Cu interconnects is attributed to the relatively long bulk electron mean free path (39 nm at 298 K), which is inherently determined by phonon scattering. In this regard, Ru and Co have been recently considered as attractive alternatives for next-generation interconnect materials because the significantly.....
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Cited By 4