Affiliation:
1. Department of Mechanical Systems Engineering, Tohoku University, Sendai 980-8579, Japan
Abstract
A metal-multilayered nanomechanical cantilever sensor was proposed to reduce the temperature effect for highly sensitive gas molecular detection. The multilayer structure of the sensor reduces the bimetallic effect, allowing for the detection of differences in molecular adsorption properties on various metal surfaces with higher sensitivity. Our results indicate that the sensor exhibits higher sensitivity to molecules with greater polarity under mixed conditions with nitrogen gas. We demonstrate that stress changes caused by differences in molecular adsorption on different metal surfaces can be detected and that this approach could be used to develop a gas sensor with selectivity for specific gas species.
Funder
Cabinet Office, Government of Japan, through the Cross-Ministerial Strategic Innovation Promotion Program
New Energy and Industrial Technology Development Organization
Japan Agency for Medical Research and Development
Subject
Clinical Biochemistry,General Medicine,Analytical Chemistry,Biotechnology,Instrumentation,Biomedical Engineering,Engineering (miscellaneous)