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Effects of Gamma Irradiation on Optical Properties of Colloidal Nano-crystals

Conference ·
OSTI ID:21091582
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  1. Center for High Technology Materials, University of New Mexico, Albuquerque, New Mexico (United States)
  2. Chemical and Nuclear Engineering, University of New Mexico, Albuquerque, New Mexico (United States)
The effects of {sup 137}Cs gamma irradiation on photoluminescence properties, such as spectra, light output, and lifetime, of several types of colloidal nano-crystals have been investigated. Irradiation-induced damage testing was performed on CdSe/ZnS, LaF{sub 3}:Eu, LaF{sub 3}:Ce, ZnO, and PbI{sub 2} nano-crystals synthesized on a Schlenk line using appropriate solvents and precursors. Optical degradation of the nano-crystals was evaluated based on the measured dependence of their photoluminescence intensity on the irradiation dose. Radiation hardness varies significantly between various nano-crystalline material systems. (authors)
Research Organization:
Materials Research Society, 506 Keystone Drive, Warrendale, PA, 15086-7573 (United States)
OSTI ID:
21091582
Country of Publication:
United States
Language:
English