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Title: Impedance Spectroscopy and Dielectric Properties of Silver Incorporated Indium Sulfide Thin Films
Authors: Demirci Sankır, Nurdan
Aydın, Erkan
Sankır, Mehmet
Keywords: Spray pyrolysis
indium sulfide
silver incorporation
impedance spectroscopy
dielectric properties
Issue Date: 14-Apr-2014
Source: Sankir, N. D., & Erkan Aydin, M. S. (2014). Impedance spectroscopy and dielectric properties of silver incorporated indium sulfide thin films. International Journal of Electrochemical Science, 9(7), 3864-3875.
Abstract: In this study, silver incorporated indium sulfide (In2S3) thin films have been deposited on soda lime glass via spray pyrolysis technique. Structural and electrical properties have been tailored by adding controlled amount of silver acetate into the precursor solution. A phase shift form cubic -In2S3 to AgInS2 has been evidenced from X-ray diffraction spectra (XRD). Molecularity of the samples, meaning (Ag+In)/S ratio, has directly affected the electrical conductivity as well as the dielectric properties. Direct and alternating current conductivities increased with increasing the (Ag+In)/S ratio upto 10% silver incorporation. When the silver amount further increased conductivity decreased due to the pronounced secondary phase formation. The complex impedance analysis was used to determine the effect of silver on the conduction mechanism. It has been observed that frequency exponent of all samples were greater than unity indicating the nanocrystalline nature of the films. The variation of dielectric properties and ac conductivity with frequency revealed that the relaxation process in silver incorporated In2S3 thin films was due to the Maxwell–Wagner type of interfacial polarization in general.
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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