Deflection and Resonance Frequency Shift of a Microcantilever Induced by Chemisorption:Oxygen on Si(100)
An energy-based model is presented to predict the deflection and resonance frequency shift of a microcantilever induced by chemisorption.The chemisorption of oxygen on Si(100) surface is taken as a representative example.The connection between the continuum-level cantilever responses (e.g.static deflection,resonance frequency) and the molecular-level interactions (covalent bond interactions) are established.The mechanical behavior of the cantilever on the density of adsorbed atoms/molecules and the property of the substrate is investigated.This study is helpful for designing microcantilever-based sensors which have many technologically important applications.
Microcantilever Chemisorption Deflection Resonance frequency Surface elasticity
Jiqiao Zhang Ganyun Huang Xiqiao Feng Shouwen Yu
Faculty of Civil and Transportation Engineering,Guangdong University of Technology,Guangzhou 510006, Department of Mechanics,School of Mechanical Engineering,Tianjin University,Tianjin 300072,China AML,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China
国际会议
西安
英文
455-458
2012-06-12(万方平台首次上网日期,不代表论文的发表时间)