Blue shift in absorption edge of polycrystalline zinc oxide modified by nanoparticles before and after irradiation exposure

M. M. Mikhailov, V. V. Neshchimenko, C. Li, V. A. Vlasov

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The effect on band gap (Eg) and crystal structure of ZnO modified by Al2O3, ZrO2, SiO2, CeO2, TiO2 and Y2O3 nanoparticles at concentrations less than 30 wt% has been investigated. Established that change of Eg reach to 0.03 eV and determined by charge of cations and their radius, as well as the concentration of the nanoparticles. Lattice parameters changes at modifying by nanoparticles with a smaller and larger radius of cations than the ion Zn2+. Influence of 100 keV protons irradiation result in blue shift in absorption edge of polycrystalline zinc oxide modified by Al2O3, ZrO2, SiO2, CeO2, TiO2 and Y2O3 nanoparticles.

Original languageEnglish
Pages (from-to)18-26
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume418
DOIs
Publication statusPublished - 1 Mar 2018

Keywords

  • Band gap
  • Crystal structure
  • Irradiation
  • Nanoparticles
  • Optical properties
  • Zinc oxide

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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