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ZnS와 SnO 혼합 분말을 열 증발시켜 성장한 팔면체 Zn
2
SnO
4
결정과 육각 원통형 ZnO 결정
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이근형
Korean J. Met. Mater.
2024;62(9):721-725. Published online 2024 Sep 5
DOI:
https://doi.org/10.3365/KJMM.2024.62.9.721
Abstract
Octahedron-shaped zinc stannate (Zn
2
SnO
4
) crystals and hexagonal cylinder-like ZnO crystals were synthesized through a simple thermal evaporation method under uncomplicated conditions of air atmosphere. The Zn
2
SnO
4
octahedrons were grown by heating a mixture of ZnS and SnO powders, and the ZnO hexagonal cylinder-like crystals were fabricated by heating mixtures of.....
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Korean J. Met. Mater.
2024;62(2):106-114. Published online 2024 Jan 30
DOI:
https://doi.org/10.3365/KJMM.2024.62.2.106
Abstract
This research elucidates the intricate interplay of lithium content, oxygen pressure, and temperature and their influence on the electrical properties of Lithium-doped zinc oxide (LZO). The electrical behavior of zinc oxide (ZnO), a prominent semiconductor material, can be modulated when doped with lithium (Li). Through systematic experimentation, we demonstrate that.....
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Zn-ion 배터리용 ZnMn
2
O
4
양극재의 입자 크기 증가를 통한 Mn
3+
용출 완화로 수명 증가
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박재영, 최영묵, 전상은
Korean J. Met. Mater.
2023;61(12):923-932. Published online 2023 Nov 30
DOI:
https://doi.org/10.3365/KJMM.2023.61.12.923
Abstract
ZnMn
2
O
4
(ZMO) cathode possesses a high theoretical capacity of 224 mAh g
-1
and high operating voltage (1.9 V vs. Zn
2+
/Zn) for aqueous Zn–ion batteries. However, the disproportionation reaction of Mn
3+
leads to Mn dissolution in the ZMO cathode, deteriorating lifespan. In this study, we attempted to reduce Mn dissolution by.....
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대기압의 공기 분위기에서 열증발법에 의해 성장한 육각형 디스크 형상의 ZnO 나노결정
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이근형
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
Abstract
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.....
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Web of Science 2
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도금폐액에 함유된 팔라듐의 아연치환물 염산침출액에서 상용화추출제를 이용한 용매추출로 팔라듐(II)과 아연(II)의 분리
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송시정, Viet Nhan Hoa Nguyen, 이만승
Korean J. Met. Mater.
2022;60(3):188-197. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.188
Abstract
The demand for palladium (Pd) has increased and this has made it necessary to recover pure Pd from diverse secondary resources. To recover the small amount of Pd(II) present in spent electroplating solutions, Pd(II) is concentrated by cementation with zinc metal. In this work, a hydrometallurgical process consisting of leaching.....
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Web of Science 5
Crossref 5
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염산과 황산용액에서 팔라듐과 아연 금속혼합물의 침출
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송시정, Viet Nhan Hoa Nguyen, 이만승
Korean J. Met. Mater.
2021;59(7):469-475. Published online 2021 Jun 16
DOI:
https://doi.org/10.3365/KJMM.2021.59.7.469
Abstract
Spent electroplating solutions contain small amounts of Pd(II). Cementation of Pd(II) with zinc metal powder is practiced to concentrate the Pd. Dissolution of the cemented Pd metal is necessary to recover pure Pd metal or compounds. In this work, the leaching behavior of Pd metal in inorganic acid solutions (hydrochloric.....
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Web of Science 7
Crossref 7
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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
Abstract
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
Web of Science 7
Crossref 8
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Photoacid generator가 포함된 광경화성 전구체 기반 자가패턴 가능한 용액 공정형 Zinc Tin 산화물 트랜지스터 연구
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김재영, 최건오, 안태규, 정용진
Korean J. Met. Mater.
2021;59(3):162-167. Published online 2021 Feb 19
DOI:
https://doi.org/10.3365/KJMM.2021.59.3.162
Abstract
Solution-processed zinc tin oxide (ZTO) thin-film transistors (TFTs) have great potential uses in next-generation wearable and flexible electronic products. Zinc and tin precursor materials are naturally abundant and have low fabrication costs. To integrate a single ZTO TFT into logic circuits including inverters, NAND, and NOR gates will require the.....
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Web of Science 6
Crossref 5
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전도식 원자현미경을 이용한 ZnO 나노로드 기반 압전 나노발전기의 사이즈 의존성 평가
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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
Abstract
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’.....
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Web of Science 8
Crossref 6
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마그네트론 스퍼터링법으로 제조된 ZnO/Cu/ZnO 유연 투명전극 성능 최적화 연구
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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
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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Crossref 7
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스핀코팅과 자외선 조사의 동시 적용을 기반한 용액 공정형 Indium Zinc 산화물 트랜지스터 연구
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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
Abstract
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.....
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Journal Impact Factor 1.1