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Title: Nanocomposite thin films for optical temperature sensing

The disclosure relates to an optical method for temperature sensing utilizing a temperature sensing material. In an embodiment the gas stream, liquid, or solid has a temperature greater than about 500.degree. C. The temperature sensing material is comprised of metallic nanoparticles dispersed in a dielectric matrix. The metallic nanoparticles have an electronic conductivity greater than approximately 10.sup.-1 S/cm at the temperature of the temperature sensing material. The dielectric matrix has an electronic conductivity at least two orders of magnitude less than the dispersed metallic nanoparticles at the temperature of the temperature sensing material. In some embodiments, the chemical composition of a gas stream or liquid is simultaneously monitored by optical signal shifts through multiple or broadband wavelength interrogation approaches. In some embodiments, the dielectric matrix provides additional functionality due to a temperature dependent band-edge, an optimized chemical sensing response, or an optimized refractive index of the temperature sensing material for integration with optical waveguides.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1343760
Assignee:
U.S. Department of Energy NETL
Patent Number(s):
9,568,377
Application Number:
14/177,306
Resource Relation:
Patent File Date: 2014 Feb 11
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Other works cited in this record:

Composite material including nanocrystals and methods of making
patent, April 2010

Nanocomposite thin films for high temperature optical gas sensing of hydrogen
patent, April 2013

Carbon nanotube temperature and pressure sensors
patent, October 2013

Plasmonic transparent conducting metal oxide nanoparticles and films for optical sensing applications
patent, January 2014

Device and methods for temperature and humidity measurements using a nanocomposite film sensor
patent, February 2016

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