Inferring relative dose-dependent color center populations in proton irradiated thoria single crystals using optical spectroscopy

Author:

Khanolkar Amey1ORCID,Dennett Cody A.1ORCID,Hua Zilong1,Mann J. Matthew2,Hurley David H.1,Khafizov Marat3ORCID

Affiliation:

1. Materials Science and Engineering Department, Idaho National Laboratory, 1955 N. Fremont Ave., Idaho Falls, ID 83415, USA

2. Air Force Research Laboratory, Sensors Directorate, 2241 Avionics Circle, Wright Patterson AFB, OH, 45433, USA

3. Department of Mechanical and Aerospace Engineering, The Ohio State University, 201 W 19th Ave, Columbus, OH, 43210, USA

Abstract

Transparent thoria crystals developed a deep blue color when exposed to energetic protons due to electrons trapped at oxygen vacancy sites. Optical spectroscopy offers a promising pathway to characterize the population of such atomic-level defects that cannot be imaged using electron microscopy.

Funder

U.S. Department of Energy

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Reference89 articles.

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4. Metal oxide-based materials as an emerging family of hydrogen evolution electrocatalysts

5. G.Choppin , J.-O.Liljenzin and J.Rydberg , Radiochemistry and nuclear chemistry , Butterworth-Heinemann , 2002

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