XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited
Само за регистроване кориснике
2020
Аутори
Medić-Ilić, MirjanaBundaleski, Nenad
Ivanović, Nenad
Teodoro, Orlando M. N. D.
Rakočević, Zlatko Lj.
Minić, Dragica M.
Romčević, Nebojša Ž.
Radisavljević, Ivana
Чланак у часопису (Објављена верзија)
,
© 2020 Elsevier Ltd.
Метаподаци
Приказ свих података о документуАпстракт
Recently introduced model for quantitative analysis of in-depth non-uniform surfaces is applied to reexamine the X-ray Photoelectron Spectroscopy (XPS) data of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 crystalline samples. Special attention is paid to the precise identification of phases which form the bulk-like near-surface region and the surface overlayers (the oxide layer and the layer of organic impurities), as well as the influence of surface morphology on the measurements. The obtained results fully support earlier qualitative estimations, but also provide new quantitative insight into the composition of the three investigated regions. The near-surface region of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 samples is slightly electropositive, with cation/anion ratio 52:48 and 53:47, respectively. Model surface structures, which are fully compatible with the experimental results, comprise 0.76 nm thick CdTeO3 layer at the surface of Cd0.99Fe0.01Te0.97Se0.03 an...d 0.33 nm thick mixed ZnO/TeO2 oxide layer on Zn0.98Fe0.02Te0.91Se0.09. In both samples the oxide layer is only a few atomic layers thick, implying that it suppresses further rapid migration of oxygen into the bulk.
Кључне речи:
II-VI semiconductors / Oxidation / XPS / ModellingИзвор:
Vacuum, 2020, 176, 109340-Финансирање / пројекти:
- Оптоелектронски нанодимензиони системи - пут ка примени (RS-45003)
- Функционални, функционализовани и усавршени нано материјали (RS-45005)
- Синтеза, процесирање и карактеризација наноструктурних материјала за примену у области енергије, механичког инжењерства, заштите животне стредине и биомедицине (RS-45012)
- Program of scientific and technological cooperation between Republic of Serbia and Republic of Portugal [451-03-02328/2012-14/03]
- Portuguese National Funding Agency for Science, Research and Technology [UID/FIS/00068/2019]
- Portuguese National Funding Agency for Science, Research and Technology [PTDC/FIS-NAN/1154/2014]
DOI: 10.1016/j.vacuum.2020.109340
ISSN: 0042-207X
WoS: 000538144400042
Scopus: 2-s2.0-85082390920
Колекције
Институција/група
VinčaTY - JOUR AU - Medić-Ilić, Mirjana AU - Bundaleski, Nenad AU - Ivanović, Nenad AU - Teodoro, Orlando M. N. D. AU - Rakočević, Zlatko Lj. AU - Minić, Dragica M. AU - Romčević, Nebojša Ž. AU - Radisavljević, Ivana PY - 2020 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8910 AB - Recently introduced model for quantitative analysis of in-depth non-uniform surfaces is applied to reexamine the X-ray Photoelectron Spectroscopy (XPS) data of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 crystalline samples. Special attention is paid to the precise identification of phases which form the bulk-like near-surface region and the surface overlayers (the oxide layer and the layer of organic impurities), as well as the influence of surface morphology on the measurements. The obtained results fully support earlier qualitative estimations, but also provide new quantitative insight into the composition of the three investigated regions. The near-surface region of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 samples is slightly electropositive, with cation/anion ratio 52:48 and 53:47, respectively. Model surface structures, which are fully compatible with the experimental results, comprise 0.76 nm thick CdTeO3 layer at the surface of Cd0.99Fe0.01Te0.97Se0.03 and 0.33 nm thick mixed ZnO/TeO2 oxide layer on Zn0.98Fe0.02Te0.91Se0.09. In both samples the oxide layer is only a few atomic layers thick, implying that it suppresses further rapid migration of oxygen into the bulk. T2 - Vacuum T1 - XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited VL - 176 SP - 109340 DO - 10.1016/j.vacuum.2020.109340 ER -
@article{ author = "Medić-Ilić, Mirjana and Bundaleski, Nenad and Ivanović, Nenad and Teodoro, Orlando M. N. D. and Rakočević, Zlatko Lj. and Minić, Dragica M. and Romčević, Nebojša Ž. and Radisavljević, Ivana", year = "2020", abstract = "Recently introduced model for quantitative analysis of in-depth non-uniform surfaces is applied to reexamine the X-ray Photoelectron Spectroscopy (XPS) data of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 crystalline samples. Special attention is paid to the precise identification of phases which form the bulk-like near-surface region and the surface overlayers (the oxide layer and the layer of organic impurities), as well as the influence of surface morphology on the measurements. The obtained results fully support earlier qualitative estimations, but also provide new quantitative insight into the composition of the three investigated regions. The near-surface region of Cd0.99Fe0.01Te0.97Se0.03 and Zn0.98Fe0.02Te0.91Se0.09 samples is slightly electropositive, with cation/anion ratio 52:48 and 53:47, respectively. Model surface structures, which are fully compatible with the experimental results, comprise 0.76 nm thick CdTeO3 layer at the surface of Cd0.99Fe0.01Te0.97Se0.03 and 0.33 nm thick mixed ZnO/TeO2 oxide layer on Zn0.98Fe0.02Te0.91Se0.09. In both samples the oxide layer is only a few atomic layers thick, implying that it suppresses further rapid migration of oxygen into the bulk.", journal = "Vacuum", title = "XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited", volume = "176", pages = "109340", doi = "10.1016/j.vacuum.2020.109340" }
Medić-Ilić, M., Bundaleski, N., Ivanović, N., Teodoro, O. M. N. D., Rakočević, Z. Lj., Minić, D. M., Romčević, N. Ž.,& Radisavljević, I.. (2020). XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited. in Vacuum, 176, 109340. https://doi.org/10.1016/j.vacuum.2020.109340
Medić-Ilić M, Bundaleski N, Ivanović N, Teodoro OMND, Rakočević ZL, Minić DM, Romčević NŽ, Radisavljević I. XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited. in Vacuum. 2020;176:109340. doi:10.1016/j.vacuum.2020.109340 .
Medić-Ilić, Mirjana, Bundaleski, Nenad, Ivanović, Nenad, Teodoro, Orlando M. N. D., Rakočević, Zlatko Lj., Minić, Dragica M., Romčević, Nebojša Ž., Radisavljević, Ivana, "XPS measurements of air-exposed Cd(Zn)1xFexTe1ySey surfaces revisited" in Vacuum, 176 (2020):109340, https://doi.org/10.1016/j.vacuum.2020.109340 . .