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Title: Fluorescent temperature sensor

Abstract

The present invention is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

Inventors:
 [1];  [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
986487
Patent Number(s):
7497993
Application Number:
10/934,454
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01K - MEASURING TEMPERATURE
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Baker, Gary A, Baker, Sheila N, and McCleskey, T Mark. Fluorescent temperature sensor. United States: N. p., 2009. Web.
Baker, Gary A, Baker, Sheila N, & McCleskey, T Mark. Fluorescent temperature sensor. United States.
Baker, Gary A, Baker, Sheila N, and McCleskey, T Mark. Tue . "Fluorescent temperature sensor". United States. https://www.osti.gov/servlets/purl/986487.
@article{osti_986487,
title = {Fluorescent temperature sensor},
author = {Baker, Gary A and Baker, Sheila N and McCleskey, T Mark},
abstractNote = {The present invention is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {3}
}

Works referenced in this record:

Correlation between the fluorescent response of microfluidity probes and the water content and viscosity of ionic liquid and water mixtures
journal, January 2004


Liquid-Phase Thermometry Based on Fluorescence Lifetimes of Intramolecular Excimers
journal, January 1999


A Dual Fluorescence Temperature Sensor Based on Perylene/Exciplex Interconversion
journal, October 2001


Fluorescence methods for determination of temperature in fuel sprays
journal, January 1985


Fluorescent Probes for Monitoring Temperature in Organic Solvents
journal, March 1997


Fluorescence-Based Thermometry:Principles and Applications
journal, January 1999