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Effects of Composition on the Electromagnetic Wave Shielding/Absorption and Corrosion in Zn-Ni Alloy Thin Film
조성에 따른 Zn-Ni 합금 박막의 전자파 차폐/흡수 특성 및 부식특성 연구
Jeongwook Lim, Yonghwan Kim, Yeonjoo Kim, Pungkeun Song, Ahram Kwon
임정욱, 김용환, 김연주, 송풍근, 권아람
Korean J. Met. Mater. 2022;60(1):62-67.   Published online 2021 Dec 10
DOI: https://doi.org/10.3365/KJMM.2022.60.1.62

Abstract
In the Fourth industrial age, there is increasing use of electronic devices with high frequency (GHz) operating circuits for radio wave transmission/reception. This can lead to electromagnetic noise, and malfunctions in nearby devices. Electromagnetic shielding technology has emerged as an important way of preventing device malfunctions due to noise, and..... More

                        
A Study on the ZnO Thin Film Deposited by RF Sputtering Method as an Electron Transport Layer in Quantum Dot Light-Emitting Diodes
RF sputtering으로 증착된 ZnO 박막을 전자 수송층으로 사용한 양자점 발광 다이오드에 관한 연구
Myoungsuk Kang, Jiwan Kim
강명석, 김지완
Korean J. Met. Mater. 2021;59(10):718-723.   Published online 2021 Sep 6
DOI: https://doi.org/10.3365/KJMM.2021.59.10.718

Abstract
We report a highly efficient quantum dot light emitting diode (QLEDs) with a radio frequency (RF) sputtered ZnO thin film as an electron transport layer (ETL) instead of the conventional ZnO nanoparticles (NPs) by solution process. ZnO NPs have been used as a key material to improve the performance of..... More

                        
Effect of Co-Solvent Percentages on the Exfoliation Rate of NiTe<sub>2</sub> Thin Film for Transparent Electrodes
혼합용매 비율이 투명전극 용 NiTe2 박막의 박리에 미치는 영향
Jun Ho Lee, Ho Jun Park, Chae Eun Im, Jong Gyeom Kim, Dong Eun Gu, Suk Jun Kim
이준호, 박호준, 임채은, 김종겸, 구동은, 김석준
Korean J. Met. Mater. 2021;59(7):481-490.   Published online 2021 Jun 16
DOI: https://doi.org/10.3365/KJMM.2021.59.7.481

Abstract
We attempted to maximize the transmittance of 2D NiTe2 thin film using the liquid-phase exfoliation (LPE) process to confirm the applicability of NiTe2 as a transparent electrode. The LPE process, using a co-solvent of organic solvent and water, is a stable and efficient method of increasing transmittance at low cost...... More

                           Cited By 1
Simultaneous Improvement in the Corrosion Resistance and Visible Transparency of ZnO/Cu/ZnO Transparent Heaters with Reactively Sputtered Al<sub>2</sub>O<sub>3</sub> Layers
반응성 스퍼터링법으로 제조된 Al2O3 막을 이용한 ZnO/Cu/ZnO 투명 히터의 내식성과 투과도 개선 연구
Geumhyuck Bang, Dooho Choi
방금혁, 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 Al2O3 layers. To assess corrosion resistance, ZnO and Al2O3 layers with thicknesses in the range of 0-20 nm were deposited onto 20 nm-thick Cu..... More

                           Cited By 2
Effective Method for Preparing Low-Oxygen Titanium Ingot by Combined Powder Deoxidation and Vacuum Arc Melting Processes
Jung-Min Oh, Jaeyeol Yang, Jaesik Yoon, Jae-Won Lim
Korean J. Met. Mater. 2021;59(3):149-154.   Published online 2021 Feb 19
DOI: https://doi.org/10.3365/KJMM.2021.59.3.149

Abstract
In this study, an effective method is demonstrated for fabricating titanium sputtering targets, which are used to fabricate thin films in the semiconductor industry. The method is an alternative to the existing electron beam melting (EBM) process under high vacuum. Titanium sputtering targets used in the production of semiconductors must..... More

                           Cited By 2
Enhanced Optical and Electrical Properties of Ti Doped In<sub>2</sub>O<sub>3</sub> thin Films Treated by Post-deposition Electron Beam Irradiation
Su-Hyeon Choe, Yun-Je Park, Yu-Sung Kim, Byung-Chul Cha, Sung-Bo Heo, Sungook Yoon, Young-Min Kong, Daeil Kim
Korean J. Met. Mater. 2020;58(11):793-797.   Published online 2020 Oct 15
DOI: https://doi.org/10.3365/KJMM.2020.58.11.793

Abstract
Transparent and conductive Ti doped In2O3 (TIO) films were prepared on slide glass substrate using a radio frequency (RF) magnetron sputter and then subjected to Transparent and conductive Ti doped In2O3 (TIO) films were prepared on a glass slide substrate using radio frequency (RF) magnetron sputter. The film surface was..... More

                           Cited By 1
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 Choi
최두호
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..... More

                           Cited By 1
The Effect of Post Annealing on Physical Properties of NiTe<sub>2</sub> Thin Film Fabricated by Magnetron Sputtering
후열처리 공정이 스퍼터링법으로 제조된 NiTe2 박막의 물리적 성질에 미치는 영향
Ho Jun Park, Jun Ho Lee, Byeong Uk Min, Suk Jun Kim
박호준, 이준호, 민병욱, 김석준
Korean J. Met. Mater. 2020;58(3):195-200.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.195

Abstract
In this study, the effect of post annealing time on the physical properties of NiTe2 thin films with 2D structure deposited by co-sputtering was investigated. After heat treatment for 10 min, nickel ditelluride thin films with a composition of Ni : Te = 1 : 2 exhibited transmittance of 46%..... More

                           Cited By 3
Electron Irradiation Effects on the Optical and Electrical Properties of ZnO/Ag/SnO<sub>2</sub> Thin Films
Yu-Sung Kim, Jin-Young Choi, Yun-je park, Su-Hyeon Choe, Byung-Chul Cha, Young-Min Kong, Daeil Kim
Korean J. Met. Mater. 2020;58(3):190-194.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.190

Abstract
Transparent conductive ZnO 50 nm/Ag 10 nm/SnO2 50 nm (ZAS) tri-layer films were deposited on glass substrates by magnetron sputtering, and then the surface was subjected to intense electron beam irradiation to investigate the effects of electron irradiation on the structural, optical, and electrical properties of the films. After deposition,..... More

                           Cited By 2
Effect of a Metal Thin Film's Residual Stress and Manufacturing Process on Thin Film Micro-Crack
박막 잔류응력 및 제조공정에 따른 금속박막층 미세크랙 영향
Byung-Kyu Cho, Seung-Chan Hong, Byung-Sam Kim, Jae-Kyung Cheon
조병규, 홍승찬, 김병삼, 천재경
Korean J. Met. Mater. 2020;58(3):175-181.   Published online 2020 Mar 5
DOI: https://doi.org/10.3365/KJMM.2020.58.3.175

Abstract
In recent automobile trends, the functions of opening and closing the vehicle door are accomplished by touch sensor and smart-phone NFC (Near Field Communication) systems. These convenience features are incorporated into the outdoor handle. However, this function can’t be used when chrome plating is applied to this part for design..... More

                        
Effects of Rapid Thermal Annealing on the Structural, Optical, and Electrical Properties of ZnO/Ag/SnO<sub>2</sub> Tri-Layer Films
Su-Hyeon Choe, Yu-Sung Kim, Jin-Young Choi, Yun-Je Park, Byung-Chul Cha, Young-Min Kong, Daeil Kim
Korean J. Met. Mater. 2019;57(8):506-509.   Published online 2019 Aug 5
DOI: https://doi.org/10.3365/KJMM.2019.57.8.506

Abstract
ZnO 50 nm/Ag 10 nm/SnO2 50 nm (ZAS) tri-layer films were deposited on a glass substrate by RF and DC magnetron sputtering and then underwent rapid thermal annealing in a low vacuum of 1×10-3 Torr to investigate the effects of post-deposition annealing on the optical and electrical properties of the..... More

                           Cited By 2
Effect of Process Parameters on the Angular Distribution of Sputtered Cu Flux in Long-Throw Sputtering System
Hee-Young Shin, Tae-Ho Kim, Jun-Woo Park, Hyun-Chul Sohn
Korean J. Met. Mater. 2019;57(7):462-467.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.462

Abstract
In this work, the angular distribution of the sputtered Cu flux in a long throw sputtering (LTS) system is extracted from the comparison of experimentally-measured profiles of deposited films with simulated profiles of films in overhang contact structure. And effects of the sputtering process parameters such as Ar pressure during..... More

                           Cited By 1
Effect of Rapid Thermal Annealing Temperature on Oxygen-Deficient TiO<sub>2-x</sub>-based Thin-Film Transistors Deposited by RF Magnetron Sputtering
RF 마그네트론 스퍼터링으로 증착한 산소 결핍 구조 TiO2-x 박막 트랜지스터에 미치는 급속 열처리 온도의 영향
Han-Sang Kim, Jae-Yun Lee, Sung-Jin Kim
김한상, 이재윤, 김성진
Korean J. Met. Mater. 2019;57(7):438-446.   Published online 2019 Jun 5
DOI: https://doi.org/10.3365/KJMM.2019.57.7.438

Abstract
We investigated the effect of rapid thermal annealing (RTA) temperature report on oxygendeficient rutile TiO2-x thin-film transistors deposited by RF magnetron sputtering. Amorphous TFTs that use TiO2-x semiconductors as an active layer can be fabricated by low-temperature process and show remarkable electrical performance. The RTA post-annealing process provides greater production..... More

                           Cited By 1
Influence of the Thickness of TiO<sub>2</sub>/TiO<sub>2-x</sub> Layers on the Behavior of a Memristor Device
TiO2/TiO2-x 박막층의 두께가 멤리스터 소자의 특성에 미치는 영향
Han-Sang Kim, Sung-Jin Kim
김한상, 김성진
Korean J. Met. Mater. 2019;57(2):84-90.   Published online 2019 Feb 5
DOI: https://doi.org/10.3365/KJMM.2019.57.2.84

Abstract
Memristors have been extensively investigated as the fourth fundamental circuit element. Titanium oxide is a common material used to fabricate memristors. In this paper, we investigated the influence of the thickness of the oxide active layer on the Al/TiO2-x/TiO2/heavily doped electrode memristor architecture. An insulating TiO2 thin-film was deposited using..... More

                           Cited By 4
Electrical and Optical Investigation of the Growth Behavior of Au Nanoparticles Fabricated on Various Matrix Materials by the Alternating Sputtering Method
교번스퍼터링법에 의해 다양한 기지상 재료위에 형성된 Au 나노입자의 성장거동에 대한 전기, 광학적 분석
Bum-Joon Kim, Hyun Chul Kim, Jong-Geon Park, Kyeong-Seok Lee
김범준, 김현철, 박종건, 이경석
Korean J. Met. Mater. 2017;55(10):739-744.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.739

Abstract
Nanocomposite films, which are comprised of metal nanoparticles dispersed in a matrix layer, have attracted great interest due to their unique electrical and optical properties, which are mainly due to the excitation of localized surface plasmons. In this study, we employed an alternating sputtering method to fabricate such nanocomposite films...... More

      
Near Infrared Reflecting Properties of TiO<sub>2</sub>/Ag/TiO<sub>2</sub> Multilayers Prepared by DC/RF Magnetron Sputtering
Sung Han Kim, Seo Han Kim, Pung Keun Song
Korean J. Met. Mater. 2017;55(8):581-586.   Published online 2017 Aug 1
DOI: https://doi.org/10.3365/KJMM.2017.55.8.581

Abstract
The near-infrared (NIR) reflecting properties of TiO2 /Ag /TiO2 (TAT) multilayers deposited using DC/RF magnetron sputtering were investigated. For high transmittance and reflectance in the visible and NIR ranges, respectively, the thickness of each layer was theoretically optimized by the index matching method. As the Ag layer thickness increased, the..... More

      
Enhancement of the Opto-Electrical Properties of Ag Intermediate ZTO Films by Vacuum Annealing
Hyun-Joo Moon, Daeil Kim
Korean J. Met. Mater. 2017;55(3):209-212.   Published online 2017 Mar 3
DOI: https://doi.org/10.3365/KJMM.2017.55.3.209

Abstract
Sn-doped ZnO (ZTO)/Ag/ZTO tri-layer films were deposited on glass substrates by radio frequency (RF) and direct current (DC) magnetron sputtering and then vacuum annealed at 100, 200 and 300 ℃ for 30 min with a proportions of H2/N2 gas flow of 6/6 sccm, to investigate the effects of annealing temperature..... More

      
Effect of Post-Deposition Annealing on the Structural, Optical and Electrical Properties of Ti-doped Indium Oxide Thin Films
Sung-Bo Heo, Hyun-Joo Moon, Jeong-Hyeon Oh, Young-Hwan Song, Tae-Young Eom, Jun-Ho Kim, Daeil Kim
Korean J. Met. Mater. 2016;54(10):775-779.   Published online 2016 Oct 5
DOI: https://doi.org/10.3365/KJMM.2016.54.10.775

Abstract
Ti-doped In2O3 (TIO) thin films were deposited on glass substrates by RF magnetron sputtering. The films were then annealed at 100, 200 or 300 °C for 30 min to investigate the effects of the annealing temperature on the films’ structural, electrical and optical properties. The films annealed at 200 °C..... More

         Cited By 1
Electronic Materials
Enhanced Optical and Electrical Properties of TiO<sub>2</sub> Buffered IGZO/TiO<sub>2</sub> Bi-Layered Films
Hyun-Joo Moon, Daeil Kim
Korean J. Met. Mater. 2016;54(8):605-608.   Published online 2016 Aug 5
DOI: https://doi.org/10.3365/KJMM.2016.54.8.605

Abstract
In and Ga doped ZnO (IGZO, 100-nm thick) thin films were deposited by radio frequency magnetron sputtering without intentional substrate heating on a bare glass substrate and a TiO2-deposited glass substrate to determine the effect of the thickness of a thin TiO2 buffer layer on the structural, optical, and electrical..... More

         Cited By 1
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