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Modified model for static behavior of microcantilever gas sensor adsorbed with monolayer molecules

  • Harbin Institute of Technology
  • Ministry of Education of the People's Republic of China

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The modified static bending model of microcantilever with monolayer molecules has been established based on energy method, in which the change in neutral layer position caused by adsorption-induced stress has been considered. On this basis, we have analyzed the relationship between the bending curvature radius of a microcantilever with its thickness, Young's modulus and molecule-molecule distance of adsorbed molecules when it is adsorbed with monolayer water molecules. Additionally, we have investigated the effect of change in neutral layer position on the static behavior of microcantilever sensors and have found that: 1) the bending curvature radius of microcantilever is affected by its Young's modulus, thickness and distance of adsorbed molecules respectively; 2)the predicted error of bending curvature radius caused by the change in neutral layer position slightly increases with decreasing Young's modulus and thickness, whereas the effect of distance between adsorbed molecules on the error is significant.

Original languageEnglish
Title of host publicationAdvanced Materials
Pages455-459
Number of pages5
DOIs
StatePublished - 2012
Event2nd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2011 - Guilin, China
Duration: 16 Dec 201118 Dec 2011

Publication series

NameAdvanced Materials Research
Volume415-417
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2011
Country/TerritoryChina
CityGuilin
Period16/12/1118/12/11

Keywords

  • Adsorption
  • Microcantilever
  • Neutral layer position
  • Static bending model

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