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Methyl orange (CI acid orange 52) as a new organic semiconductor: Conduction mechanism and dielectrical relaxation

Yahia, I. S.; Mahmmoud Sayed, Abd El-sadek LU and Yakuphanoglu, F. (2012) In Dyes and Pigments 93(1-3). p.1434-1440
Abstract
The structural, electrical and dielectrical properties of the methyl orange (MO) have been investigated by X-ray diffraction and thermal analysis methods. The electrical conduction and dielectrical relaxation mechanisms of the organic compound at various frequencies and temperatures were analyzed by impedance spectroscopy. The direct current (DC) electrical conductivity confirmed that methyl orange is an organic semiconductor with calculated electronic parameters. The alternating current (AC) electrical conductivity of the sample is controlled by the correlated barrier hopping (CBH) conduction mechanism. The values of the activation energy, the density of states and the binding energy for the alternating current mechanism were determined.... (More)
The structural, electrical and dielectrical properties of the methyl orange (MO) have been investigated by X-ray diffraction and thermal analysis methods. The electrical conduction and dielectrical relaxation mechanisms of the organic compound at various frequencies and temperatures were analyzed by impedance spectroscopy. The direct current (DC) electrical conductivity confirmed that methyl orange is an organic semiconductor with calculated electronic parameters. The alternating current (AC) electrical conductivity of the sample is controlled by the correlated barrier hopping (CBH) conduction mechanism. The values of the activation energy, the density of states and the binding energy for the alternating current mechanism were determined. The real and imaginary (Z' and Z '') parts of the impedance were found to be a frequency dependence. It was found that Cole-Cole plots of the sample confirm the existence of a temperature-dependent non-Debye relaxation mechanism. (C) 2011 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Organic semiconductor, Methyl orange, Impedance spectroscopy, Conduction, mechanism, CBH model, Dielectrical relaxation mechanism
in
Dyes and Pigments
volume
93
issue
1-3
pages
1434 - 1440
publisher
Elsevier
external identifiers
  • wos:000300539800006
  • scopus:80855138189
ISSN
1873-3743
DOI
10.1016/j.dyepig.2011.10.002
language
English
LU publication?
yes
id
c194b466-d587-4d17-973b-51c83b866120 (old id 2390707)
date added to LUP
2012-04-02 10:38:52
date last changed
2017-10-01 03:15:36
@article{c194b466-d587-4d17-973b-51c83b866120,
  abstract     = {The structural, electrical and dielectrical properties of the methyl orange (MO) have been investigated by X-ray diffraction and thermal analysis methods. The electrical conduction and dielectrical relaxation mechanisms of the organic compound at various frequencies and temperatures were analyzed by impedance spectroscopy. The direct current (DC) electrical conductivity confirmed that methyl orange is an organic semiconductor with calculated electronic parameters. The alternating current (AC) electrical conductivity of the sample is controlled by the correlated barrier hopping (CBH) conduction mechanism. The values of the activation energy, the density of states and the binding energy for the alternating current mechanism were determined. The real and imaginary (Z' and Z '') parts of the impedance were found to be a frequency dependence. It was found that Cole-Cole plots of the sample confirm the existence of a temperature-dependent non-Debye relaxation mechanism. (C) 2011 Elsevier Ltd. All rights reserved.},
  author       = {Yahia, I. S. and Mahmmoud Sayed, Abd El-sadek and Yakuphanoglu, F.},
  issn         = {1873-3743},
  keyword      = {Organic semiconductor,Methyl orange,Impedance spectroscopy,Conduction,mechanism,CBH model,Dielectrical relaxation mechanism},
  language     = {eng},
  number       = {1-3},
  pages        = {1434--1440},
  publisher    = {Elsevier},
  series       = {Dyes and Pigments},
  title        = {Methyl orange (CI acid orange 52) as a new organic semiconductor: Conduction mechanism and dielectrical relaxation},
  url          = {http://dx.doi.org/10.1016/j.dyepig.2011.10.002},
  volume       = {93},
  year         = {2012},
}