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할라이드 페로브스카이트 소재를 이용한 전자 소자에 관한 리뷰
박형기 ( Hyeong Gi Park ),양정엽 ( Jungyup Yang ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.5
This review examines the use of halide perovskite materials in electronic devices, highlighting their exceptional optoelectronic properties and the challenges associated with them. Despite their potential for high-performance devices, practical applications are limited by sensitivity to environmental factors such as moisture and oxygen, etc. We discuss advances in enhancing stability and operational reliability, featuring innovative synthesis methods and device engineering strategies that help mitigate degradation. Furthermore, we explore the integration of perovskites in applications such as field-effect transistors and LEDs, emphasizing their transformative potential. This review also outlines future research directions, stressing the need for ongoing improvements in material stability and device integration to fully realize the commercial potential of perovskites.
광 포획 향상을 위한 다중 아키텍처 식각 기술을 적용한 박막 실리콘 태양전지에 관한 연구
박형기 ( Hyeong Gi Park ),이준신 ( Junsin Yi ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.3
This work focuses on improving the light-harvesting efficiency of thin-film silicon solar cells through innovative multi-architecture surface modifications. To create a regular optical structure, a lithographic process was performed to form it on a glass substrate through various etching processes, from Etch-1 to Etch-3. AZO was deposited on top of the structures and re-etched to create a multi-architectural surface. These surface-modified structures improved the light absorption and overall performance of the solar cell through changes in optical and physical properties, which we will analyze. In addition, we investigated the effect of post-cleaning on the etched glass structures through EDX analysis to understand the mechanism of the etching action. The results of this study are expected to provide important guidelines for the design and fabrication of solar cells and other photovoltaic devices.
태양광 모듈 시스템의 에너지 변환을 위한 전력 반도체에 관한 리뷰
박형기 ( Hyeong Gi Park ),김도영 ( Do Young Kim ),이준신 ( Junsin Yi ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.2
This study offers a comprehensive evaluation of the role and impact of advanced power semiconductors in solar module systems. Focusing on silicon carbide (SiC) and gallium nitride (GaN) materials, it highlights their superiority over traditional silicon in enhancing system efficiency and reliability. The research underscores the growing industry demand for high-performance semiconductors, driven by global sustainable energy goals. This shift is crucial for overcoming the limitations of conventional solar technology, paving the way for more efficient, economically viable, and environmentally sustainable solar energy solutions. The findings suggest significant potential for these advanced materials in shaping the future of solar power technology.
이종접합 실리콘 태양전지의 효율 개선을 위한 열처리의 효과
박형기 ( Hyeong Gi Park ),이준신 ( Junsin Yi ) 한국전기전자재료학회 2024 전기전자재료학회논문지 Vol.37 No.4
This study investigates the post-thermal treatment effects on the efficiency of silicon heterojunction solar cells, specifically examining the influence of annealing on p-type microcrystalline silicon oxide and ITO thin films. By assessing changes in carrier concentration, mobility, resistivity, transmittance, and optical bandgap, we identified conditions that optimize these properties. Results reveal that appropriate annealing significantly enhances the fill factor and current density, leading to a notable improvement in overall solar cell efficiency. This research advances our understanding of thermal processing in siliconbased photovoltaics and provides valuable insights into the optimization of production techniques to maximize the performance of solar cells.
초소형 고감도 나노 바이오 센서의 연구개발 및 시장 동향
박형기,국준원,최권영,이재현,Hyeong Gi Park,Jun-Won Kook,Kwon-Young Choi,Jae-Hyun Lee 한국전기전자재료학회 2023 전기전자재료학회논문지 Vol.36 No.6
This paper presents the development and market trends of nano biosensors. These biosensors must possess high sensitivity and selectivity to effectively detect diseases. Presently, many research groups are focusing on the field-effect transistor aspect of nano biosensors, which can identify diseases such as Down syndrome, bladder cancer, breast cancer, and numerous other cancers, utilizing graphene and transition metal dichalcogenide materials. In the case of in-vitro diagnostics, the use of nano biosensors has been rapidly growing since the onset of the COVID-19 pandemic. This paper also discusses market trends and the outlook for both national and international enterprises engaged in the nano biosensor field. Nano biosensors are expected to play a beneficial and significant role soon, contributing to the early diagnosis of diseases and subsequently improving patient outcomes.