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Korean J. Met. Mater.
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방열판용 구리 후막의 잔류응력 제어를 위한 그래핀 효과에 관한 연구
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배정운
Korean J. Met. Mater.
2023;61(1):28-32. Published online 2022 Dec 28
DOI:
https://doi.org/10.3365/KJMM.2023.61.1.28
Abstract
Nowadays, high-density electronic devices and component mounting have gained popularity. Because of the heat generated from these devices, efficiency of the electronic parts is significantly lowered and life time of these devices is considerably shortened. Therefore, it is very important to efficiently dissipate the heat generated from the device to.....
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성에 제거용 대면적 투명 히터를 위한 환원된 산화 그래핀 연구
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조승근, 문해인, 김영원, 도환수, 이정우
Korean J. Met. Mater.
2022;60(8):570-576. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.570
Abstract
Transparent heaters are promising devices because of their versatile applications in vehicles, smart windows, and sensors, etc. Indium tin oxide is widely used for transparent heater materials due to its high electronic conductivity and visible light transmittance. However, the cost of indium is too high, and its fabrication needs sophisticated.....
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Web of Science 1
Crossref 2
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대면적 시트의 환원된 산화 그래핀을 활용한 메쉬 패턴 투명히터 제작
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문해인, 조승근, 신유진, 강여울, 이정우
Korean J. Met. Mater.
2022;60(8):564-569. Published online 2022 Jul 12
DOI:
https://doi.org/10.3365/KJMM.2022.60.8.564
Abstract
Transparent heaters are widely used for defrosting to improve visibility, insulation or heating of buildings, and thermal treatment. Indium tin oxide (ITO), which has excellent transmittance and electrical conductivity, is one of the representative materials used for these transparent heaters. However, it has several drawbacks including high material price, limited.....
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Web of Science 3
Crossref 3
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암모니아를 이용한 그래핀 구조 제어 및 고감도 압력 센서로의 적용
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정연욱, 조승근, 문해인, 김영원, 신유진, 박길령, 이정우
Korean J. Met. Mater.
2022;60(3):206-212. Published online 2022 Feb 8
DOI:
https://doi.org/10.3365/KJMM.2022.60.3.206
Abstract
Graphene has been used in various fields because of its excellent mechanical, optical, electrical, and thermal properties. However, its intrinsic low sensitivity to pressure limits its sensor applications. To overcome this drawback, many researchers have tried to improve the sensitivity by controlling the defects on the graphene, but have yet.....
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Web of Science 3
Crossref 2
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Korean J. Met. Mater.
2020;58(11):808-814. Published online 2020 Oct 21
DOI:
https://doi.org/10.3365/KJMM.2020.58.11.808
Abstract
Graphene oxide quantum dots (GOQDs) are nanometer-sized graphene oxide fragments that exhibit unique properties, making them interesting candidates for a range of new applications. Carbon black, one of the commercially available carbon precursors, is produced by the thermal decomposition or incomplete combustion of organic compounds. It is commonly used as.....
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Web of Science 3
Crossref 3
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전기방사법을 이용한 산화 그래핀-은 나노섬유 투명전극
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현재영, 좌성훈, 박경완, 석중현
Korean J. Met. Mater.
2020;58(9):626-632. Published online 2020 Aug 19
DOI:
https://doi.org/10.3365/KJMM.2020.58.9.626
Abstract
We fabricated a transparent conducting electrode composed of graphene oxide (GO) and silver (Ag) nanofibers. The graphene oxide was spray-coated on the Ag nanofiber film, which was fabricated by electrospinning process. Ag/poly(vinyl alcohol) ink was fabricated in a polymer matrix solution using the solgel method. The sprayed film was sintered.....
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Web of Science 4
Crossref 5
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Korean J. Met. Mater.
2019;57(10):663-672. Published online 2019 Sep 6
DOI:
https://doi.org/10.3365/KJMM.2019.57.10.663
Abstract
The dehydrogenation rates of graphene-added Mg (named Mg-5graphene) were very low at 573 K and 593 K. Ni was added to increase the dehydrogenation rates of graphene-added Mg. Samples (designated as Mg-2.5Ni-2.5graphene) with a composition of 95 wt% Mg + 2.5 wt% Ni + 2.5 wt% graphene were prepared by.....
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Web of Science 8
Crossref 7
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환원 그래핀 산화물을 이용하여 계면제어된
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형 Bismuth Telluride Selenide 복합체의 열전수송특성에 대한 연구
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황의경, 임영수
Korean J. Met. Mater.
2019;57(9):603-608. Published online 2019 Aug 21
DOI:
https://doi.org/10.3365/KJMM.2019.57.9.603
Abstract
We report the effect of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of Bi
2
Te
2.7
Se
0.3
(BTS)-RGO composites. The interface-controlled BTS-RGO composites were prepared by the consolidation of BTS-RGO hybrid powders using spark plasma sintering (SPS). The RGO-hybridization reduced the grain size in the BTS-RGO composites because.....
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Web of Science 5
Crossref 5
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Korean J. Met. Mater.
2019;57(8):529-534. Published online 2019 Jul 11
DOI:
https://doi.org/10.3365/KJMM.2019.57.8.529
Abstract
A Cu composite reinforced by a three-dimensionally interconnected graphene network was synthesized in situ by a simple two-step process utilizing compacted Cu powder (99% purity) as a template for the growth of graphene. Cu composites with different graphene contents were obtained by controlling the processing parameters. The composites were approximated.....
More
Web of Science 6
Crossref 6
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의 GO 혼합 양에 따른 페로브스카이트 태양전지의 물성 연구
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이혜령, 김광배, 송오성
Korean J. Met. Mater.
2019;57(7):456-461. Published online 2019 Jun 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.7.456
Abstract
The photovoltaic properties of perovskite solar cells (PSCs) were investigated by adding graphene oxide (GO) to the electron transport layer of TiO
2
. The PSCs were fabricated with a glass/FTO/BL-TiO
2
/meso-TiO
2
+ GO/perovskite/HTL/Au electrode structure by adding various contents of GO (0.0, 0.3, 0.5 and 0.7 wt%) to the TiO
2
layer. To.....
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Web of Science 8
Crossref 6
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Korean J. Met. Mater.
2018;56(7):524-531. Published online 2018 Jul 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.7.524
Abstract
To improve the hydrogen uptake and release properties of magnesium (Mg), five weight percent of graphene was added to pre-milled Mg by milling in hydrogen (reaction-involving milling). The hydrogen uptake and release properties of the graphene-added Mg (named Mg-5graphene) were investigated. Premilling of Mg (for 24 h) and then adding.....
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Crossref 10
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환원 산화 그래핀을 이용한 계면제어가 다결정 SnSe의 열전 수송특성에 미치는 효과
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이상태, 임영수
Korean J. Met. Mater.
2018;56(2):163-169. Published online 2018 Feb 5
DOI:
https://doi.org/10.3365/KJMM.2018.56.2.163
Abstract
We report the effects of interface control using reduced graphene oxide (RGO) on the thermoelectric transport properties of polycrystalline SnSe compounds. Polycrystalline SnSe-RGO composites were prepared by the consolidation of SnSe powder coated with the RGO by hot pressing, and the RGO content was controlled to be 0, 0.2, 0.5.....
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Korean J. Met. Mater.
2017;55(7):492-502. Published online 2017 Jul 4
DOI:
https://doi.org/10.3365/KJMM.2017.55.7.492
Abstract
Pt-functionalized RGO samples were prepared and subsequently irradiated with 2-MeV electron beams (e-beams). The effect of e-beam dose on the structural, electrical, and gas sensing properties of the samples was investigated. E-beam irradiation was found to induce significant microstructural changes in the Pt-functionalized RGO. Measurements of NO
2
sensing at room.....
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