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Seung Geun Jo 3 Articles
564 Fabrication of Mesh-Patterned Transparent Heater using Large-Sized Sheets of Reduced Graphene Oxide
대면적 시트의 환원된 산화 그래핀을 활용한 메쉬 패턴 투명히터 제작
Hae-In Moon, Seung Geun Jo, Yujin Shin, Yeoul Kang, Jung Woo Lee
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..... More

                        
570 A Study on Reduced Graphene Oxide in Large-area Transparent Heaters for Defrosting
성에 제거용 대면적 투명 히터를 위한 환원된 산화 그래핀 연구
Seung Geun Jo, Hae-In Moon, Young Won Kim, Hwan Soo Dow, Jung Woo Lee
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..... More

                        
206 A Study on Graphene Structure Control Using Ammonia Gas for a Highly Sensitive Pressure Sensor
암모니아를 이용한 그래핀 구조 제어 및 고감도 압력 센서로의 적용
Yeon Wook Jung, Seung Geun Jo, Hae-In Moon, Young Won Kim, Yujin Shin, Gil-Ryeong Park, Jung Woo Lee
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..... More

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