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ZnO Nanocrystals with Hexagonal Disk Shape Grown by Thermal Evaporation Method in Air at Atmospheric Pressure
대기압의 공기 분위기에서 열증발법에 의해 성장한 육각형 디스크 형상의 ZnO 나노결정
Geun-Hyoung Lee
Korean J. Met. Mater. 2022;60(8):601-606.   Published online 2022 Jul 12
DOI: https://doi.org/10.3365/KJMM.2022.60.8.601

Hexagonal-shaped ZnO nanodisks were synthesized at temperatures above 1000oC via thermal evaporation of a mixture of ZnO, SnO, and graphite powders as the source materials. Notably, the ZnO nanodisks were easily formed in ambient air at atmospheric pressure. The ZnO nanodisks could not be obtained without SnO in the source..... More

Evaluation of the Mechanical Properties of ZnO Nanorods Treated with Oxygen Plasma using Atomic Force Microscopy
Donghyuck Park, Yijun Yang, Kwanlae Kim
Korean J. Met. Mater. 2021;59(3):209-216.   Published online 2021 Feb 19
DOI: https://doi.org/10.3365/KJMM.2021.59.3.209

Zinc oxide (ZnO) simultaneously exhibits semiconducting and piezoelectric properties. ZnO in the form of nanorods has been studied intensively for application in self-powering devices. The power generation in piezoelectric nanogenerators based on ZnO nanorods can be improved via several approaches, including an oxygen plasma treatment. When ZnO nanorods are exposed..... More

                           Cited By 2
Size Dependency of a ZnO Nanorod-Based Piezoelectric Nanogenerator Evaluated by Conductive Atomic Force Microscopy
전도식 원자현미경을 이용한 ZnO 나노로드 기반 압전 나노발전기의 사이즈 의존성 평가
Yijun Yang, Kwanlae Kim
양이준, 김관래
Korean J. Met. Mater. 2020;58(1):67-75.   Published online 2020 Jan 1
DOI: https://doi.org/10.3365/KJMM.2020.58.1.67

ZnO nanorods are one of the most studied materials because it can be facilely grown on a wide range of substrates at low temperature. ZnO exhibits piezoelectricity as well as semiconducting properties, and hence is applicable to piezoelectric nanogenerators and sensors. In the present work, the effect of ZnO nanorods’..... More

                           Cited By 5
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 Choi
김대균, 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

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..... More

                           Cited By 5
Study of Solution-Processed Indium Zinc Oxide TFTs Made by Simultaneous Spin Coating and Ultraviolet Light Irradiation
스핀코팅과 자외선 조사의 동시 적용을 기반한 용액 공정형 Indium Zinc 산화물 트랜지스터 연구
Fei Shan, Sung-Jin Kim
선비, 김성진
Korean J. Met. Mater. 2017;55(8):572-575.   Published online 2017 Aug 1
DOI: https://doi.org/10.3365/KJMM.2017.55.8.572

We investigated solution-processed indium zinc oxide (IZO) thin-film transistors (TFTs) which were fabricated by spin coating with simultaneous irradiation by ultraviolet light. The proposed treatment enhanced the efficient condensation and densification of the oxide semiconducting channel layer by decreasing oxygen-vacancy-related defects and increasing metal-oxide bonds. An IZO TFT irradiated for..... More

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