Microstructural and optical properties of SiO2 glasses doped with ZnSe quantum dots and Nd3+ ions

Thami El Boukhari*, Hakan Kaygusuz, Gökhan Bilir, F. Bedia Erim, Gönül Özen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

SiO2 glasses doped with ZnSe quantum dots and Nd3+ ions with compositions of (1% ZnSe–99% SiO2), (2% ZnSe–98% SiO2) and (2% ZnSe–97% SiO2–1% Nd3+) were synthesized by sol-gel method and then annealed at 683 K and 873 K for one hour. X-Ray diffraction (XRD) technique was used to identify the crystalline phases of ZnSe quantum dots. It was observed that 0–1 mol% of Nd2O3 addition produced single phase structure in XRD. The average crystallite sizes of ZnSe quantum dots were determined using Scherrer's equation and the FW15/45 M method. The size of the nanoparticles was found to be in the range of 4–10 nm. It was shown that the presence of Nd3+ ions led to smaller quantum dot sizes and a narrow size distribution.

Original languageEnglish
Pages (from-to)41-45
Number of pages5
JournalPhysica B: Condensed Matter
Volume509
DOIs
Publication statusPublished - 15 Mar 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

  • Grain size distribution
  • Neodymium
  • Quantum dot
  • Sol-gel
  • XRD

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