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Channel과 gate 구조에 따른 산화물 박막트랜지스터의 전기적 특성 연구
공희성,조경아,김재범,임준형,김상식,Kong, Heesung,Cho, Kyoungah,Kim, Jaybum,Lim, Junhyung,Kim, Sangsig 한국전기전자학회 2022 전기전자학회논문지 Vol.26 No.3
In this study, we designed oxide thin-film transistors (TFTs) with dual gate and tri layered split channels, and investigated the structural effect of the TFTs on the electrical characteristics. The dual gates played a key role in increasing the driving current, and the channel structure of tri layers and split form contributed to the increase in the carrier mobility. The tri layered channels consisting of the a-ITGZO and two ITO layers inserted between the gate dielectric and a-ITGZO led to the increase in the on-current by using ITO layers with high conductivity, and the split channels lowered series resistance of the channels. Compared with the mobility (15 cm<sup>2</sup>/V·s) of the single gate a-ITGZO TFT, the mobility (134 cm<sup>2</sup>/V·s) of the dual gate tri-layer split channel TFT was remarkably enhanced by the structural effect.
사용자 참여를 통한 초등학교 환경색채 디자인에 관한 연구
박혜경(Park, Heykyung),오지영(Oh, Jiyoung),임준형(Lim, Junhyung),최예림(Choi, Yerim) 한국색채학회 2018 한국색채학회 논문집 Vol.32 No.4
This study aims to improve the environmental colors of elementary school and suggests ways to improve satisfaction by reflecting users` needs through participation by spatial users from the planning stage. This study consists largely of four stages. First, the environmental color planning criteria were established by examining the environmental color theory of elementary schools and the children`s color preference theory. Second, user participated color workshops and user surveys were used as data to derive direction of color design. Third, through the analysis of the existing color environment of the school, the problems and improvement plans were derived, and the design proposal followed by integrating the theoretical contents, the workshop results and the survey results. Fourth, the final design was constructed and the user’s satisfaction was investigated after construction to evaluate the improvement of the environmental colors. The conclusions are as follows: First, considering the spatial characteristics, the color design of corridors, classrooms, and stair rooms was changed and the range of colors, luminance and saturation could be selected. Second, through workshops and surveys, the user`s opinions on color preference, consciousness, and demands were collected and applied to color planning. Third, after construction, the user satisfaction survey showed that the satisfaction level increased by more than 23%.