Published August 15, 2014 | Version v1
Journal article Metadata-only

Optical property degradation of titanium dioxide micro- and nanopowders under irradiation

Creators

  • 1. Radiation and Space Materials Laboratory, Tomsk State University of Control Systems and Radio-electronics, Tomsk, Tomsk Region 634050 (Russian Federation)
  • 2. Science and Technology on Material Performance Evaluating in Space Environment Laboratory, Harbin Institute of Technology, Harbin, Heilongjiang Province 150001 (China)
  • 3. Space Materials Laboratory, Amur State University, Blagoveshchensk, Amur Region 675027 (Russian Federation)

Description

Diffuse reflection spectra and absorption spectra of titanium dioxide (anatase) micro- and nanopowders induced by exposure to 100 keV protons and electrons were analyzed at wavelengths between 250 and 2500 nm. It is established that the radiation stability of the nanopowders is higher than the micropowders in the absorption region λ > 500 nm for proton and electron exposure. This effect is caused by the high concentration of radiation defects in micropowders, which is associated with defects of interstitial titanium ions (Tii···, Tii····), titanium vacancies (VTi⁗, VTi‴ ) and oxygen vacancies VOX

Availability note (English)

Available from http://dx.doi.org/10.1016/j.nimb.2014.04.014

Additional details

Identifiers

DOI
10.1016/j.nimb.2014.04.014;
PII
S0168-583X(14)00516-3;

Publishing Information

Journal Title
Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms
Journal Volume
333
Journal Page Range
p. 52-57
ISSN
0168-583X
CODEN
NIMBEU

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46129030
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ABSORPTION; ABSORPTION SPECTRA; CONCENTRATION RATIO; DEFECTS; ELECTRONS; IRRADIATION; KEV RANGE 10-100; NANOSTRUCTURES; OPTICAL PROPERTIES; OXYGEN; POWDERS; PROTONS; REFLECTION; TITANIUM; TITANIUM IONS; TITANIUM OXIDES; VACANCIES
Descriptors DEC
BARYONS; CHALCOGENIDES; CHARGED PARTICLES; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY RANGE; FERMIONS; HADRONS; IONS; KEV RANGE; LEPTONS; METALS; NONMETALS; NUCLEONS; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; SORPTION; SPECTRA; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.