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마름모형 AFM 캔틸레버를 이용한 고분자 나노섬모의 점착력 측정
이학주(H-J Lee),조기호(K-H Cho),김재현(J-H Kim),유영은(Y-E Yoo),김완두(W-D Kim),김종만(J-M Kim),김용권(Y-K Kim),백창욱(C-W Baek) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
In the previous works, the success of rhombus-shaped AFM cantilever manufactured by standard MEMS process has been already proved by performing mechanical bending tests at a micro/nano-scale. In this paper, nano-newton scale adhesive force between micro/nano hair structure and silicon tip is measured by AFM at the atmospheric condition. A nano-hair structure of cyclic olefin copolymer (COC) is fabricated using an anodized aluminum oxide template. The diameter and the length of the nano-hair are approximately 150 ㎚ and 10 ㎛, respectively. This paper outlines a research process that encompasses: 1) design and fabrication of a symmetric rhombus-shaped AFM cantilever, 2) fabrication process of a polymeric nano-hair structure, and 3) adhesion test of nano-hair structure using the manufactured cantilever.
한승우(S. W. Han),하산(Hasan),김동호(D. H. Kim),이현우(H. W. Lee),조기호(K. H. Cho),김정엽(J. Y. Kim),이학주(H. J. Lee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
While the thermoelectric properties as well as the thermal, electric and mechanical properties of bulk Bi-Te and Sb-Te compounds are well known, properties of the thin films of these alloys are still not well defined. This study deals with the characterization of mechanical and electrical properties of Bi₂Te₃ thin films prepared by RF magnetron sputtering. Electrical transport and mechanical properties were measured by a hall effect measurement system and nanoindenter respectively. The thin film properties obtained from this study will be used in the ongoing research for design and development of micro thermoelectric coolers.