Concentration quenching of the emission of F

G. Baldacchini, F. Menchini, R.M. Montereali

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Abstract

In this work the emission efficiencies of F3+and F2centers as a function of their concentration have been investigated in LiF crystals colored at RT with 5 MeV electrons. From a careful investigation of their absorption and emission spectra at 80 K and RT, we evaluated that the emission efficiencies η of both F3+and F2defects are constant up to ∼ 1016centers/cm3. When increasing the concentration up to 2 × 1018centers/cm3, η decreases slightly for the F2centers and considerably more, down to a factor of 100 at the maximum concentration, for the F3+ones. The same results have been obtained at 80 K for the F2centers, while the concentration quenching of F3+centers is 10 times less intense with respect to RT.
Original languageEnglish
Pages (from-to)71 - 75
Number of pages5
JournalRadiation Effects and Defects in Solids
Volume155
Issue number1-4
DOIs
Publication statusPublished - 2001

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All Science Journal Classification (ASJC) codes

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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