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Structural Investigations of (Ni,Cu) Co–Doped ZnO Nanocrystals by X‐ray Absorption Spectroscopy
Author(s) -
Tiwari Nidhi,
Kumar Shiv,
Kamal Chinnathambi,
Chakrabarti Aparna,
Prajapat Champa Lal,
Mishra P. K.,
Mondal Pushpen,
Jha Sambhu Nath,
Bhattacharyya Dibyendu
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800310
Subject(s) - x ray absorption spectroscopy , xanes , extended x ray absorption fine structure , materials science , absorption spectroscopy , transmission electron microscopy , synchrotron radiation , absorption (acoustics) , spectroscopy , analytical chemistry (journal) , doping , nanocrystal , absorption edge , x ray absorption fine structure , crystallography , chemistry , nanotechnology , optics , band gap , optoelectronics , physics , chromatography , quantum mechanics , composite material
(Ni,Cu) co‐doped ZnO nanocrystals have been prepared through wet chemical route using nitrate based precursors and have been characterized thoroughly. Phase purity of the samples has been investigated by X‐ray diffraction (XRD) and Transmission Electron Microscopy (TEM) measurements. To have further micro structural insight, the samples have subsequently been subjected to synchrotron radiation based X‐ray absorption spectroscopy (XAS) measurements comprising of both X‐ray near edge structure (XANES) and Extended X‐ray Absorption Fine Structure (EXAFS) techniques. The results of the above measurements have been used to explain the magnetic properties of the samples which have further been corroborated by density functional theory (DFT) based electronic structure calculations.