Transport and generation processes of ionic carriers in amorphous polymethylphenylsilane

Transport and generation processes of ionic impurity carriers in amorphous polymethylphenylsilane (PMPS) have been investigated by a voltage reversal method. The ionic carriers in PMPS are likely to be sodium ions because PMPS was prepared by condensation of an organosilicon dichloride monomer with...

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Bibliographic Details
Published in:Solid state communications 1996-11, Vol.100 (8), p.603-607
Main Authors: Iga, Hironori, Kodama, Shin-ichi, Naito, Hiroyoshi
Format: Article
Language:English
Subjects:
A. polymers
and plastics
Applied sciences
C. impurities in semiconductors
D. dielectric response
D. photoconductivity and photovoltaics
elastomers
Exact sciences and technology
Inorganic and organomineral polymers
Physicochemistry of polymers
Properties and characterization
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Summary:Transport and generation processes of ionic impurity carriers in amorphous polymethylphenylsilane (PMPS) have been investigated by a voltage reversal method. The ionic carriers in PMPS are likely to be sodium ions because PMPS was prepared by condensation of an organosilicon dichloride monomer with sodium dispersion. The drift mobility and its activation energy of the ionic carriers are determined to be 1.2×10 −9 cm 2V −1s −1 at 323 K and 0.64 eV, respectively. The generation of the ionic carriers is found to be dependent on applied electric field and temperature. It is shown that the electric field dependence of the generation process can be explained by the Poole-Frenkel mechanism.
ISSN:0038-1098
1879-2766
DOI:10.1016/0038-1098(96)00465-6