Ambient Zinc K-Edge Extended X-Ray Absorption Fine Structure Studies on Solid Solution Hardening of the Ternary Alloys

Abstract

Solid solution hardening can be introduced in the zinc selenide by cationic substitution alloying. We are presenting our studies on gradual development of the hardening and the bond-length variations among the heavily Be-doped ternary alloys of Zn 1 Be Se. ese compositionally vivid ternary systems are grown by the Bridgman technique, and a set of careful measurements of synchrotron-based Zn core X-ray absorption spectroscopy are performed on the mixed alloy, which is followed by extraction of useful oscillations of extended X-ray absorption �ne structures. A detailed ab initio analysis is also carried out for the mixed alloy's theoretical EXAFS simulations, and suitable data processing codes are used for the subsequent experimental spectra �ttings. Various X-ray scattering single and multiple paths around the core atomic environ are simulated and compared with the spectroscopic results. With the aid of as-found parametric values, the hardening and crystalline disorders are discussed and explained in the midst of the multimodal bond-length behaviors and changes induced by the increased alloying amid as-found pseudocrystalline stabilities.

EXAFS study of the temperature dependence of the Debye–Waller factor in ZnSe zincblende compound

“…Characterization techniques such as scanning electron microscopy, transmission electron microscopic, energydispersive x-ray, x-ray diffraction (XRD) and Raman scattering are mostly used to examine the lattice dynamics electronic and optical properties including dielectric properties, thermal expansion, thermal and electrical conductivity, diffusion mechanism and phase change phenomena [12,[17][18][19][20][21][22]. However, a very few studies have been dedicated to x-ray absorption spectroscopy (XAS) technique to investigate the electronic and dynamic properties of ZnSe [23][24][25]. The better understanding of all properties of this material leads to its most use for various applications.…”

Demonstration of Near Edge X-ray Absorption Fine Structure Spectroscopy of Transition Metals Using Xe/He Double Stream Gas Puff Target Soft X-ray Source

“…Among these heavier elements, there are several transition metals of particular interest to researchers, i.e., Fe, Co, Ni, Cu, Zn, as well as their oxides [ 14 , 15 ] and compounds [ 16 , 17 , 18 , 19 , 20 , 21 , 22 ]. These interests are related to their magnetic [ 23 , 24 ], optical [ 25 ], as well as conductive and semi-conductive [ 20 , 21 , 26 ] properties, which in turn translate to possible applications in catalytic, photocatalytic and photoelectrocatalytic (PEC) processes [ 14 , 27 , 28 , 29 ], as electrodes in photovoltaic cells and lithium-ion batteries [ 30 , 31 , 32 ], optoelectronic and plasmonic devices [ 15 , 25 , 33 ], gas sensors [ 34 ] or drug delivery [ 16 , 35 ].…”