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실리콘 레이저 소결에서 은 나노 입자의 도핑 효과에 관한 연구
백승현(Seunghyun Back),권승갑(Seung-Gab Kwon),Liyana Hazawani Biniti Zamri,강인구(Ingu Kang),강봉철(Bongchul Kang) 한국생산제조학회 2019 한국생산제조학회지 Vol.28 No.1
Silicon is used as an essential material in the electronic and energy industries owing to its high accessibility and inherent semiconducting properties. Typically, silicon devices are produced by top-down chemical etchings, such as anisotropic etching and reactive ion etching, to make micropatterns and surface textures. In addition, doping using thermal diffusion or ion implantation is also required to optimize electrical characteristics. We propose a one-step method for fabricating multi-scale silicon layer based on the concurrent interaction of doping of silver nanoparticles during laser-induced sintering of silicon nanocrystals. The silver-doped silicon patterns were characterized by a uniform distribution and the concentration of dopants was easily adjustable by controlling the relative amount of silver nanoparticles. We expect that this method will contribute to fabricating multi-scale silicon semiconductors without using complicated chemical and vacuum processes.
김대철(Daechul Kim),조의찬(Euichan Cho),전원석(Wonseok Jun),백승현(Seunghyun Back),김용태(Yongtae Kim) 한국자동차공학회 2017 한국자동차공학회 부문종합 학술대회 Vol.2017 No.5
A new point of view in door belt molding is variable shape, which is a new method based on press or mold and extrusion. This paper aims to make 1-piece belt molding with variable shape which has small angle of corner unless any other problems of glass moving ability for C project car.