Using X-ray induced Photoelectron Spectroscopy, Time of Flight Secondary Ion Mass Spectrometry and Atomic Force Microscopy we have investigated elemental composition, structure and oxidation process taking place at the surfaces of polycrystalline Cd0.99Fe0.01Te0.97Se0.03 and Cd0.95Mn0.05Te0.97Se0.03 systems stored in ambient conditions. The surface oxidation destroys the native CdTe matrix and provokes substantial atomic rearrangement in the first few atomic layers. The near surface region of both systems is enriched in Cd and to some extent Te-deficient, but the surface structure, morphology and the native oxide composition are all found to be considerably different. In Cd0.99Fe0.01Te0.97Se0.03 system both Fe and Se dopants diffuse into the bulk and oxidation of its surface results in formation of a thin CdTeO3 layer which covers the CdTe matrix. In Cd0.95Mn0.05Te0.97Se0.03 system oxygen-rich atmosphere triggers Mn and Se out diffusion and the nonuniform oxide layer predominantly cons...ists of MnO and a small amount of Te-oxide which both lay underneath a thin layer of metallic Cd segregated at the top of the surface. (C) 2016 Elsevier B.V. All rights reserved.
TY - JOUR
AU - Bundaleski, Nenad
AU - Radisavljević, Ivana
AU - Trigueiro, Joao
AU - Tolstogouzov, Alexander
AU - Rakočević, Zlatko Lj.
AU - Medić, Mirjana
AU - Teodoro, Orlando M. N. D.
AU - Romčević, Nebojša Ž.
AU - Ivanović, Nenad
PY - 2017
UR - https://vinar.vin.bg.ac.rs/handle/123456789/1422
AB - Using X-ray induced Photoelectron Spectroscopy, Time of Flight Secondary Ion Mass Spectrometry and Atomic Force Microscopy we have investigated elemental composition, structure and oxidation process taking place at the surfaces of polycrystalline Cd0.99Fe0.01Te0.97Se0.03 and Cd0.95Mn0.05Te0.97Se0.03 systems stored in ambient conditions. The surface oxidation destroys the native CdTe matrix and provokes substantial atomic rearrangement in the first few atomic layers. The near surface region of both systems is enriched in Cd and to some extent Te-deficient, but the surface structure, morphology and the native oxide composition are all found to be considerably different. In Cd0.99Fe0.01Te0.97Se0.03 system both Fe and Se dopants diffuse into the bulk and oxidation of its surface results in formation of a thin CdTeO3 layer which covers the CdTe matrix. In Cd0.95Mn0.05Te0.97Se0.03 system oxygen-rich atmosphere triggers Mn and Se out diffusion and the nonuniform oxide layer predominantly consists of MnO and a small amount of Te-oxide which both lay underneath a thin layer of metallic Cd segregated at the top of the surface. (C) 2016 Elsevier B.V. All rights reserved.
T2 - Materials Chemistry and Physics
T1 - Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air
VL - 189
SP - 35
EP - 43
DO - 10.1016/j.matchemphys.2016.12.029
ER -
@article{
author = "Bundaleski, Nenad and Radisavljević, Ivana and Trigueiro, Joao and Tolstogouzov, Alexander and Rakočević, Zlatko Lj. and Medić, Mirjana and Teodoro, Orlando M. N. D. and Romčević, Nebojša Ž. and Ivanović, Nenad",
year = "2017",
abstract = "Using X-ray induced Photoelectron Spectroscopy, Time of Flight Secondary Ion Mass Spectrometry and Atomic Force Microscopy we have investigated elemental composition, structure and oxidation process taking place at the surfaces of polycrystalline Cd0.99Fe0.01Te0.97Se0.03 and Cd0.95Mn0.05Te0.97Se0.03 systems stored in ambient conditions. The surface oxidation destroys the native CdTe matrix and provokes substantial atomic rearrangement in the first few atomic layers. The near surface region of both systems is enriched in Cd and to some extent Te-deficient, but the surface structure, morphology and the native oxide composition are all found to be considerably different. In Cd0.99Fe0.01Te0.97Se0.03 system both Fe and Se dopants diffuse into the bulk and oxidation of its surface results in formation of a thin CdTeO3 layer which covers the CdTe matrix. In Cd0.95Mn0.05Te0.97Se0.03 system oxygen-rich atmosphere triggers Mn and Se out diffusion and the nonuniform oxide layer predominantly consists of MnO and a small amount of Te-oxide which both lay underneath a thin layer of metallic Cd segregated at the top of the surface. (C) 2016 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air",
volume = "189",
pages = "35-43",
doi = "10.1016/j.matchemphys.2016.12.029"
}
Bundaleski, N., Radisavljević, I., Trigueiro, J., Tolstogouzov, A., Rakočević, Z. Lj., Medić, M., Teodoro, O. M. N. D., Romčević, N. Ž.,& Ivanović, N.. (2017). Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air. in Materials Chemistry and Physics, 189, 35-43.
https://doi.org/10.1016/j.matchemphys.2016.12.029
Bundaleski N, Radisavljević I, Trigueiro J, Tolstogouzov A, Rakočević ZL, Medić M, Teodoro OMND, Romčević NŽ, Ivanović N. Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air. in Materials Chemistry and Physics. 2017;189:35-43.
doi:10.1016/j.matchemphys.2016.12.029 .
Bundaleski, Nenad, Radisavljević, Ivana, Trigueiro, Joao, Tolstogouzov, Alexander, Rakočević, Zlatko Lj., Medić, Mirjana, Teodoro, Orlando M. N. D., Romčević, Nebojša Ž., Ivanović, Nenad, "Surface composition of Cd1-xFe(Mn)(x)Te1-ySey systems exposed to air" in Materials Chemistry and Physics, 189 (2017):35-43,
https://doi.org/10.1016/j.matchemphys.2016.12.029 . .
