TY  - JOUR
AU  - Bundaleski, Nenad
AU  - Radisavljević, Ivana
AU  - Ivanović, Nenad
AU  - Rakočević, Zlatko Lj.
AU  - Medić-Ilić, Mirjana
AU  - Tadić, Julijana D.
AU  - Teodoro, Orlando M. N. D.
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0039602818307611
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7977
AB  - Local structural and electronic properties around Fe in multi-component Cd0.99Fe0.01Te0.97S0.03 system were studied by means of X-ray absorption fine structure (XAFS). Composition of non-polar (110) surfaces of Cd0.97Fe0.03Te and Cd0.99Fe0.01Te0.97S0.03 systems and mechanism of their oxidation in ambient conditions were studied by Atomic Force Microscopy (AFM) and X-ray Photoelectron Spectroscopy (XPS). It has been found that Fe preferentially substitutes Cd, but due to much smaller covalent radius and preferences for paring with S, it causes local distortion of the host CdTe lattice. The distortion is confined to the Fe-immediate surrounding and the second and third coordination shell atoms are (inside experimental uncertainties) placed at distances expected in CdTe. Although local structure around Fe is well defined in the bulk of both samples, their near-surface region is completely depleted from Fe, and in case of Cd0.99Fe0.01Te0.97S0.03 somewhat enriched in S. Special attention is, therefore, paid to characterization of the near-surface region and evaluation of its composition and structure. To that end we have introduced a general standard-free algorithm for XPS data analysis of the two-layer surface structure (bulk, oxide layer, and the impurity layer). Results of the in-depth composition analysis revealed that despite different bulk composition and impurity layer thickness, underneath the topmost impurity layer lays approximately one monolayer of CdTeO3 which passivates the surface. © 2018 Elsevier B.V.
T2  - Surface Science
T1  - Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems
VL  - 681
SP  - 76
EP  - 86
DO  - 10.1016/j.susc.2018.11.007
ER  - 

@article{
author = "Bundaleski, Nenad and Radisavljević, Ivana and Ivanović, Nenad and Rakočević, Zlatko Lj. and Medić-Ilić, Mirjana and Tadić, Julijana D. and Teodoro, Orlando M. N. D.",
year = "2019",
abstract = "Local structural and electronic properties around Fe in multi-component Cd0.99Fe0.01Te0.97S0.03 system were studied by means of X-ray absorption fine structure (XAFS). Composition of non-polar (110) surfaces of Cd0.97Fe0.03Te and Cd0.99Fe0.01Te0.97S0.03 systems and mechanism of their oxidation in ambient conditions were studied by Atomic Force Microscopy (AFM) and X-ray Photoelectron Spectroscopy (XPS). It has been found that Fe preferentially substitutes Cd, but due to much smaller covalent radius and preferences for paring with S, it causes local distortion of the host CdTe lattice. The distortion is confined to the Fe-immediate surrounding and the second and third coordination shell atoms are (inside experimental uncertainties) placed at distances expected in CdTe. Although local structure around Fe is well defined in the bulk of both samples, their near-surface region is completely depleted from Fe, and in case of Cd0.99Fe0.01Te0.97S0.03 somewhat enriched in S. Special attention is, therefore, paid to characterization of the near-surface region and evaluation of its composition and structure. To that end we have introduced a general standard-free algorithm for XPS data analysis of the two-layer surface structure (bulk, oxide layer, and the impurity layer). Results of the in-depth composition analysis revealed that despite different bulk composition and impurity layer thickness, underneath the topmost impurity layer lays approximately one monolayer of CdTeO3 which passivates the surface. © 2018 Elsevier B.V.",
journal = "Surface Science",
title = "Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems",
volume = "681",
pages = "76-86",
doi = "10.1016/j.susc.2018.11.007"
}

Bundaleski, N., Radisavljević, I., Ivanović, N., Rakočević, Z. Lj., Medić-Ilić, M., Tadić, J. D.,& Teodoro, O. M. N. D.. (2019). Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems. in Surface Science, 681, 76-86.
https://doi.org/10.1016/j.susc.2018.11.007

Bundaleski N, Radisavljević I, Ivanović N, Rakočević ZL, Medić-Ilić M, Tadić JD, Teodoro OMND. Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems. in Surface Science. 2019;681:76-86.
doi:10.1016/j.susc.2018.11.007 .

Bundaleski, Nenad, Radisavljević, Ivana, Ivanović, Nenad, Rakočević, Zlatko Lj., Medić-Ilić, Mirjana, Tadić, Julijana D., Teodoro, Orlando M. N. D., "Local, electronic and surface structure of multi-component Fe-doped CdTe(S) systems" in Surface Science, 681 (2019):76-86,
https://doi.org/10.1016/j.susc.2018.11.007 . .