Fluorescent temperature sensor

Patent · Tue Mar 03 00:00:00 EST 2009

OSTI ID:986487

Baker, Gary A ^[1]; Baker, Sheila N ^[1]; McCleskey, T Mark ^[1]

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1. Los Alamos, NM

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.

• Research Organization: Univ. of California, Oakland, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-36
• Assignee: The United States of America as represented by the United States Department of Energy (Washington, DC)
• Patent Number(s): 7,497,993
• Application Number: 10/934,454
• OSTI ID: 986487
• Country of Publication: United States
• Language: English

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