Nano thermal sensors for sensing temperature in water environment

Haitham M. ElShimy, Masahiro Nakajima, Fumihito Arai, Toshio Fukuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

In this paper we illustrate the fabrication process of nano temperature sensors using focused ion beam chemical vapor deposition (FIB-CVD) of tungsten over atomic force microscope (AFM) cantilevers, to be used in sensing temperature distribution in local area. We present the fabrication approach & modifications for making these sensors capable of sensing temperature distributions not only in air but in water environment as well. The nano sensor was calibrated in water using the hot stage of the environmental scanning electron microscope (ESEM). The experimental results show the positive characteristics of the temperature coefficient of resistance (TCR). We also illustrate the response of the sensor to sudden changes in the surrounding medium. The characteristics of this sensor were compared to previously reported temperature sensing devices. The comparison verifies that our sensor is relatively uncomplicated and reliable in fabrication. The capability of sensing temperature in water will allow our sensor to be used in wide range of bio-applications, especially in studying thermogenesis in single cells.

Original languageEnglish
Title of host publication2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings
Pages1045-1049
Number of pages5
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007 - Hong Kong, China
Duration: Aug 2 2007Aug 5 2007

Publication series

Name2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007, Proceedings

Other

Other2007 7th IEEE International Conference on Nanotechnology - IEEE-NANO 2007
Country/TerritoryChina
CityHong Kong
Period8/2/078/5/07

Keywords

  • Chemical vapor deposition
  • Focused ion beam
  • Local temperature
  • Nano-sensors
  • Water environment

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

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