Kim, Yong-Jae Son, Kwangsoo Choi, In-Chul Choi, In-Suk Park, Won Il Jang, Jae-il 2024-01-20T17:35:06Z 2024-01-20T17:35:06Z 2021-09-02 2011-01-21 1616-301X https://pubs.kist.re.kr/handle/201004/130722 Despite many efforts to advance the understanding of nanowire mechanics, a precise characterization of the mechanical behavior and properties of nanowires is still far from standardization. The primary objective of this work is to suggest the most appropriate testing method for accurately determining the mechanical performance of silicon nanowires. To accomplish this goal, the mechanical properties of silicon nanowires with a radius between 15 and 70 nm (this may be the widest range ever reported in this research field) are systematically explored by performing the two most popular nanomechanical tests, atomic force microscopy (AFM) bending and nanoindentation, on the basis of different analytical models and testing conditions. A variety of nanomechanical experiments lead to the suggestion that AFM bending based on the line tension model is the most appropriate and reliable testing method for mechanical characterization of silicon nanowires. This recommendation is also guided by systematic investigations of the testing environments through finite element simulations. Results are then discussed in terms of the size-dependency of the mechanical properties; in the examined range of nanowire radius, the elastic modulus is about 185 GPa without showing significant size dependency, whereas the nanowire strength dramatically increases from 2 to 10 GPa as the radius is reduced. English WILEY-V C H VERLAG GMBH CATALYST-FREE SYNTHESIS MECHANICAL-PROPERTIES ELASTIC PROPERTIES MODULUS STRENGTH HARDNESS INDENTER FILMS LOAD SI Exploring Nanomechanical Behavior of Silicon Nanowires: AFM Bending Versus Nanoindentation Article 10.1002/adfm.201001471 1 ADVANCED FUNCTIONAL MATERIALS, v.21, no.2, pp.279 - 286 ADVANCED FUNCTIONAL MATERIALS 21 2 279 286 scie scopus 000285887100011 2-s2.0-78650693362 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article CATALYST-FREE SYNTHESIS MECHANICAL-PROPERTIES ELASTIC PROPERTIES MODULUS STRENGTH HARDNESS INDENTER FILMS LOAD SI AFM bending mechanical properties nanoindentation silicon nanowires size effects