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SnO{sub 2} nanoparticles embedded in silica by ion implantation followed by thermal oxidation

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.3257157· OSTI ID:21361938
;  [1]; ; ; ;  [2]
  1. ENEA, Advanced Physical Technologies and New Materials, SS.7 Appia km 706, I-72100 Brindisi (Italy)
  2. Dipartimento di Fisica and CNISM, Universita di Padova, via Marzolo 8, I-35131 Padova (Italy)
Nanoparticles of tin dioxide embedded in silica matrix were synthesized by ion implanting a Sn{sup +} ion beam in a silica slide and by annealing in oxidizing atmosphere at 800 deg. C. A detailed structural and optical characterization was performed by using glancing incidence x-ray diffraction, transmission electron microscopy, optical absorption, and photoluminescence spectroscopies. Metallic tetragonal beta-tin crystalline nanoparticles were formed in the as-implanted sample. The annealing in oxidizing atmosphere promotes the total oxidation of the tin nanoparticles with a preferential migration of the nanoparticles toward the surface of the matrix. A broad blue-violet emission band peaked at 388 nm was observed in the photoluminescence spectra of both the as-implanted and annealed samples, which was attributed to the Sn-related oxygen deficiency center defects and the SnO{sub 2} nanoparticles, respectively.
OSTI ID:
21361938
Journal Information:
Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 10 Vol. 106; ISSN JAPIAU; ISSN 0021-8979
Country of Publication:
United States
Language:
English

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