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태양전지용 MgF<sub>2</sub> 반사방지막 특성연구
박계춘(Park, Gye-Choon),양현훈(Yang, Hyeon-Hun),백수웅(Baek, Su-Ung),나길주(Na, Kil-Ju),소순열(So, Soon-Youl),이진(Lee, Jin),정해덕(Chung, Hae-Deok) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.11
MgF₂ is a current material for the optical applications in the UV and deep UV range. Process variables for manufacturing the MgF₂ thin film were established in order to clarify optimum conditions for growth of the thin film depending upon process conditions, and then by changing a number of vapor deposition conditions and substrate temperature, Annealing conditions variously, structural and Optical characteristics were measured. Thereby, optimum process variables were derived. Nevertheless, modern applications still require improvement of the optical and structural quality of the deposited layers. In the present work, the composition and microstructure of MgF₂ single layers grown on slide glass substrate by Electro beam Evaporator(KV-660) processes, were analyzed and compared. The surface Substrate temperature having an effect on the quality of the thin film was changed from 200[?C] to 350[?C] at intervals of 50[?C]. and annealing temperature an effect on the thin film was changed from 200[?C] to 400[?C] at intervals of 50[?C]. Physical properties of the thin film were investigated at various fabrication conditions substrate temperature, annealing and temperature, annealing time by XRD, FE-SEM.
태양전지 변환 효율 향상을 위한 근적외선 파장 변환 필름에 관한 연구
박병규,박계춘,이진,Park, Byung Kyu,Park, Gye Choon,Lee, Jin 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.11
The amount of electric power for photovoltaic power generation depends on the location of the power plant and the direction of solar cell. The solar cell controls the generation of solar power plants. Therefore, the structure of solar cell, manufacturing method, and optic technology were factors contributing to increased solar cell efficiency; however, the technical limit has been reached. Herein, we propose a new method to increase the solar cell efficiency using a wavelength conversion technology that converts ultraviolet and infrared rays, which are not effectively used in solar cells, into effective wavelength of solar cell. We used fluoride $Na(Ca)YF_4$ phosphor for wavelength conversion. Then, a wavelength-conversion fluorescent paste, prepared using an organic-silicon binder, was used to prepare a film that was applied to Si solar cells. It was confirmed that conversion efficiency improved by 5% or more.