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Influence of Film Thickness and Heat Treatment on the Physical Properties of Mn Doped Sb2Se3 Nanocrystalline Thin Films
Joint Authors
El Zawawi, I. K.
Mahdy, Manal A.
El-Sayad, E. A.
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-23
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Nanocrystalline thin films of Sb37.07Mn1.95Se60.98 with different thickness (7, 20, 40, and 80 nm) were successfully prepared via inert gas condensation technique.
As-deposited films showed amorphous structure by grazing incident in-plane X-ray diffraction (GIIXD) technique.
All films of different thicknesses were heat treated at 433 K for 90 min.
The GIIXD pattern of annealed films showed nanocrystalline orthorhombic structure.
The effect of thickness of annealed films on the structure and optical properties was studied.
Calculated particle sizes are 20.67 and 24.15 for 40 and 80 nm thickness of heat treated film.
High resolution transmission electron microscope HRTEM images and their diffraction patterns proved that 40 nm film thickness annealed at different temperature has nanocrystalline nature with observed (high) crystallinity that increases with annealing temperature.
Blue shift of optical energy gap was observed from 1.68 to 2 eV with decreasing film thickness from 80 to 7 nm.
Film thickness of 40 nm was exposed to different heat treated temperatures from 353 to 473 K to detect its effect on structure and optical and electrical properties.
Blue shift from 1.73 to 1.9 eV was observed in its optical band gap due to direct transition as heat treatment temperature decreasing from 473 to 353 K.
Electrical conductivity was studied for different heat treated films of thickness 40 nm, and intrinsic conduction mechanism is dominant.
The activation energy Ea was affected by heat treatment process.
American Psychological Association (APA)
El Zawawi, I. K.& Mahdy, Manal A.& El-Sayad, E. A.. 2017. Influence of Film Thickness and Heat Treatment on the Physical Properties of Mn Doped Sb2Se3 Nanocrystalline Thin Films. Journal of Nanomaterials،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1183574
Modern Language Association (MLA)
El Zawawi, I. K.…[et al.]. Influence of Film Thickness and Heat Treatment on the Physical Properties of Mn Doped Sb2Se3 Nanocrystalline Thin Films. Journal of Nanomaterials No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1183574
American Medical Association (AMA)
El Zawawi, I. K.& Mahdy, Manal A.& El-Sayad, E. A.. Influence of Film Thickness and Heat Treatment on the Physical Properties of Mn Doped Sb2Se3 Nanocrystalline Thin Films. Journal of Nanomaterials. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1183574
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1183574