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Optimization of Ce Content in CexLa1-xF3 Colloidal Nanocrystals for Gamma Radiation Detection

Published online by Cambridge University Press:  31 January 2011

Nathan J Withers ,
Krishnaprasad Sankar ,
John B Plumley ,
Brian A Akins ,
Tosifa A Memon ,
Antonio C Rivera ,
Gennady Smolyakov  and
Marek Osiński
Nathan J Withers
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Krishnaprasad Sankar
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
John B Plumley
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Brian A Akins
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Tosifa A Memon
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Antonio C Rivera
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Gennady Smolyakov
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
Marek Osiński
Affiliation:
[email protected], University of New Mexico, Center for High Technology Materials, Albuquerque, New Mexico, United States
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Abstract

We report on experimental investigations of CexLa1-xF3 colloidal nanocrystals (CNCs) and their properties in function of Ce content. The CNCs were characterized by TEM, energy-dispersive X-ray spectroscopy (EDS), steady-state UV-VIS optical absorption and photoluminescence (PL) spectroscopy, and by PL lifetime measurements. We also report on observations of scintillation from the cerium-doped lanthanum fluoride CNC material in experiments on radiation detection.

Keywords

Cecolloidnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1164: Symposium L – Nuclear Radiation Detection Materials–2009 , 2009 , 1164-L07-02
Copyright
Copyright © Materials Research Society 2009

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