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Synthesis, diffused reflectance and electrical properties of nanocrystalline Fe-doped ZnO via sol-gel calcination technique

Aydin, C. ; Abd El-sadek, M. S. ; Zheng, Kaibo LU ; Yahia, I. S. and Yakuphanoglu, F. (2013) In Optics and Laser Technology 48. p.447-452
Abstract
The nanocrystalline ZnO:Fe semiconductor oxides were successfully synthesized via the sol-gel calcination method. Structural, optical and electrical properties of the investigated samples were characterized by various techniques such as atomic force microscopy (AFM), UV-vis absorption and electrical transport measurements. The optical band gap for undoped ZnO (3.19 eV) decreases (2.75 eV) with increasing Fe-doped ZnO (20%). The temperature dependences of the electrical conductivities of undoped ZnO and Fe-doped ZnO were measured and analyzed by Arrhenius equation. The electrical conductivity of the samples decreases with the increase of Fe doping ratio; hence, the electrical conductivity mechanism is controlled by thermally activated... (More)
The nanocrystalline ZnO:Fe semiconductor oxides were successfully synthesized via the sol-gel calcination method. Structural, optical and electrical properties of the investigated samples were characterized by various techniques such as atomic force microscopy (AFM), UV-vis absorption and electrical transport measurements. The optical band gap for undoped ZnO (3.19 eV) decreases (2.75 eV) with increasing Fe-doped ZnO (20%). The temperature dependences of the electrical conductivities of undoped ZnO and Fe-doped ZnO were measured and analyzed by Arrhenius equation. The electrical conductivity of the samples decreases with the increase of Fe doping ratio; hence, the electrical conductivity mechanism is controlled by thermally activated processes. To support the nanostructure of Fe-doped ZnO, AFM micrographs were performed. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Fe-doped ZnO nanopowders, Sol-gel calcination method, Optical properties
in
Optics and Laser Technology
volume
48
pages
447 - 452
publisher
Elsevier
external identifiers
  • wos:000318453900061
  • scopus:84871726603
ISSN
0030-3992
DOI
10.1016/j.optlastec.2012.11.004
language
English
LU publication?
yes
additional info
The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Chemical Physics (S) (011001060)
id
0df6f638-a892-43e6-aa7e-21682e4db841 (old id 3815305)
date added to LUP
2016-04-01 14:10:25
date last changed
2023-11-13 03:41:10
@article{0df6f638-a892-43e6-aa7e-21682e4db841,
  abstract     = {{The nanocrystalline ZnO:Fe semiconductor oxides were successfully synthesized via the sol-gel calcination method. Structural, optical and electrical properties of the investigated samples were characterized by various techniques such as atomic force microscopy (AFM), UV-vis absorption and electrical transport measurements. The optical band gap for undoped ZnO (3.19 eV) decreases (2.75 eV) with increasing Fe-doped ZnO (20%). The temperature dependences of the electrical conductivities of undoped ZnO and Fe-doped ZnO were measured and analyzed by Arrhenius equation. The electrical conductivity of the samples decreases with the increase of Fe doping ratio; hence, the electrical conductivity mechanism is controlled by thermally activated processes. To support the nanostructure of Fe-doped ZnO, AFM micrographs were performed. (C) 2012 Elsevier Ltd. All rights reserved.}},
  author       = {{Aydin, C. and Abd El-sadek, M. S. and Zheng, Kaibo and Yahia, I. S. and Yakuphanoglu, F.}},
  issn         = {{0030-3992}},
  keywords     = {{Fe-doped ZnO nanopowders; Sol-gel calcination method; Optical properties}},
  language     = {{eng}},
  pages        = {{447--452}},
  publisher    = {{Elsevier}},
  series       = {{Optics and Laser Technology}},
  title        = {{Synthesis, diffused reflectance and electrical properties of nanocrystalline Fe-doped ZnO via sol-gel calcination technique}},
  url          = {{http://dx.doi.org/10.1016/j.optlastec.2012.11.004}},
  doi          = {{10.1016/j.optlastec.2012.11.004}},
  volume       = {{48}},
  year         = {{2013}},
}