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On the question of structure of ZnO thin films formed by IBAD and subsequently implanted with silver ions
Authors
Faizrakhmanov I.
Gumarov A.
+4 more
Kashapov R.
Lyadov N.
Shustov V.
Vakhitov I.
Publication date
1 January 2018
Publisher
Abstract
© 2018 Institute of Physics Publishing. All rights reserved. Nanocrystalline ZnO thin films with a thickness of ∼ 235 nm were synthesized by ion beam-assisted deposition (IBAD) technique using a metal target of zinc and oxygen (O2) as a reactive gas. The near-surface region of the synthesized films was subsequently implanted with 30 keV Ag+ ions in the fluence range of (0.25-1)×1017 ion/cm2 at high ion current density of 12 μA/cm2. The structure parameters and morphology of as-deposited and subsequently implanted with silver ions ZnO films were investigated by X-ray diffraction and scanning electron microscopy techniques. It was found that the as-deposited ZnO films have inhomogeneous structure, which consists of nanocrystallites and disordered amorphous phase. The nanocrystallites of the obtained ZnO thin films have values of lattice parameters higher than for a bulk ZnO. Subsequent implantation with silver ions leads to a significant radiation heating and microstress relaxation of the film as well as to an increase in the size of nanocrystallites due to the amorphous phase
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Last time updated on 07/05/2019