Show simple item record

dc.creatorValidžić, Ivana Lj.
dc.creatorMitrić, Miodrag
dc.creatorAhrenkiel, Scott Phillip
dc.creatorČomor, Mirjana
dc.date.accessioned2018-03-01T16:14:31Z
dc.date.available2018-03-01T16:14:31Z
dc.date.issued2015
dc.identifier.issn1073-5623 (print)
dc.identifier.issn1543-1940 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/620
dc.description.abstractWe report the synthesis of zinc oxide (ZnO) nano-leaves and nano-rods under high and extremely high alkaline experimental conditions, via a simple and low-temperature method. By performing transmission electron microscopy it is found that the nano-leaves and nano-rods grow along the (001) direction. Anisotropic, i.e., hkl-dependent line-shape broadening is observed in ZnO powder diffraction patterns. Rietveld analysis using Fullprof with model for handling the anisotropic size-like broadening is performed on these diffraction patterns. The refinement showed that ZnO powders belong to the hexagonal ZnS structure type with space group P63mc, and confirmed that the nano-leaves and nano-rods are oriented along the (001) direction. Results of visualization in 3D of the average crystallite shape obtained from refinement of spherical harmonics coefficients showed elongated shapes in the both samples, exhibiting a slight twisting for nano-leaves. Diffuse reflectance measurements reveal that the optical band-gap energies found for the ZnO nano-leaves and nano-rods is somewhat smaller than a wide-direct band gap of 3.37 eV. We argued that well defined and strong photoluminescence (PL) bands in the visible part that belong to the defects may influence the observed displacement of a ultraviolet (UV) near-band-edge emission, and which is related with obtained slightly lower band-gap energies than the established band gap of bulk ZnO. We discuss processes behind the multicolor UV/violet/blue/green/yellow emission band in PL spectra. (C) The Minerals, Metals and Materials Society and ASM International 2015en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172056/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45015/RS//
dc.rightsrestrictedAccessen
dc.sourceMetallurgical and Materials Transactions. A: Physical Metallurgy and Materials Scienceen
dc.titleMicrostructural Analysis and the Multicolor UV/Violet/Blue/Green/Yellow PL Observed from the Synthesized ZnO Nano-leaves and Nano-rodsen
dc.typearticleen
dcterms.abstractAхренкиел, С. Пхиллип; Чомор Мирјана; Младеновић Ивана; Митрић Миодраг;
dc.citation.volume46A
dc.citation.issue8
dc.citation.spage3679
dc.citation.epage3686
dc.identifier.wos000356728100035
dc.identifier.doi10.1007/s11661-015-2961-x
dc.citation.rankM21
dc.identifier.scopus2-s2.0-84932199526


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record