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

Abstract

The effect on band gap (E_g) 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 E_g 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 language	English
Pages (from-to)	18-26
Number of pages	9
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	418
DOIs	https://doi.org/10.1016/j.nimb.2017.12.015
Publication status	Published - 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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10.1016/j.nimb.2017.12.015

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Blue shift in absorption edge of polycrystalline zinc oxide modified by nanoparticles before and after irradiation exposure. / Mikhailov, M. M.; Neshchimenko, V. V.; Li, C.; Vlasov, V. A.

In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 418, 01.03.2018, p. 18-26.

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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.",

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AU - Vlasov, V. A.

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