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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/075/05/0999-1004

    • Keywords

       

      Sol–gel synthesis; nanocrystallites; fluorescence; TEM.

    • Abstract

       

      Cadmium selenide nanocrystals along with dysprosium ions are doped in silica matrices through sol–gel route. The optical bandgap and size of the CdSe nanocrystals are calculated from the absorption spectrum. The size of the CdSe nanocrystallites is also evaluated from the TEM measurements. The fluorescence intensities are compared for SiO2–Dy3+ and CdSe-doped SiO2–Dy3+. The fluorescence intensity of Dy3+ is considerably increased in the presence of CdSe nanocrystals.

    • Author Affiliations

       

      P V Jyothy1 P R Rejikumar2 Thomas Vinoy3 S Kartika1 N V Unnikrishnan1

      1. School of Pure & Applied Physics, Mahatma Gandhi University, Kottayam 686 560, India
      2. Department of Physics, T.K.M.M. College, Nangiarkulangara, Alapuzha 690 513, India
      3. Department of Physics, Christian College, Chengannur 689 122, India

    • Dates

       
      Published
      November 2010

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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