Large-scale synthesis of CexLa1−xF3 nanocomposite scintillator materials

Russell K. Feller; Geraldine M. Purdy; Denisse Ortiz-Acosta; Sy Stange; Andy Li; Edward A. McKigney; Ernst I. Esch; Ross E. Muenchausen; Robert Gilbertson; Minesh Bacrania; Bryan L. Bennett; Kevin C. Ott; Leif Brown; Clay S. Macomber; Brian L. Scott; Rico E. Del Sesto

doi:10.1039/C0JM04162A

Large-scale synthesis of Ce_xLa_1−xF₃ nanocomposite scintillator materials†

Russell K. Feller,^a Geraldine M. Purdy,^a Denisse Ortiz-Acosta,^a Sy Stange,^b Andy Li,^b Edward A. McKigney,^b Ernst I. Esch,^b Ross E. Muenchausen,^c Robert Gilbertson,^d Minesh Bacrania,^b Bryan L. Bennett,^c Kevin C. Ott,^a Leif Brown,^e Clay S. Macomber,^a Brian L. Scott^a and Rico E. Del Sesto*^a

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* Corresponding authors

^a Materials Chemistry, Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM, USA
E-mail: ricod@lanl.gov
Fax: +1 505-667-9905
Tel: +1 505-665-9087

^b Safeguards Science and Technology, Nonproliferation Division, Los Alamos National Laboratory, Los Alamos, NM, USA

^c Structure Property Relations, Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM, USA

^d Polymers and Coatings, Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM, USA

^e Chemical Diagnostics and Engineering, Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM, USA

Abstract

Transparent nanocomposites have been developed which consist of nanocrystals embedded in an organic matrix. The materials are comprised of up to 60% by volume of 7–13 nm crystals of the phosphor Ce_xLa_1−xF₃, and are greater than 70% transparent in the visible region at a thickness of 1 cm. Consistencies of the nanocomposites range from a solid polymer to a wax to a liquid, depending on the workup conditions of the nanoparticle synthesis. These transparent nanophosphor composite materials have potential applications in radiation detection as scintillators, as well as in other areas such as imaging and lighting, and can be produced on large scales up to near-kilogram quantities at near ambient conditions, much lower in temperature than typical nanoparticle syntheses.

Journal of Materials Chemistry

Large-scale synthesis of Ce_xLa_1−xF₃ nanocomposite scintillator materials†

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Large-scale synthesis of Ce_xLa_1−xF₃ nanocomposite scintillator materials

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Journal of Materials Chemistry