Journal ArticleDOI
Dependence of resistivity and photoconductivity in evaporated cadmium sulphide thin films on deposition and annealing conditions
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TLDR
In this article, the resistivity of evaporated thin films of CdS has been measured as a function of deposition and annealing conditions, and it was found that resistivity was thermally activated with a high temperature activation energy of approximately 0-5 ǫeV, which was identified with the height of the inter-crystalline barrier in the Petritz model.Abstract:
The resistivity of evaporated thin films of CdS has been measured as a function of deposition and annealing conditions. Resistivity was found to be thermally activated with a high temperature activation energy of approximately 0-5 eV, which was identified with the height of the inter-crystalline barrier in the Petritz model. Resistivity decreased with increasing film thickness and annealing temperature and increased with increasing deposition rate and substrate temperature during deposition. It is proposed that these variations are related to previously reported changes in the microcrystallite grain size and the degree of preferential orientation in the [002] direction. In addition resistivity is also dependent on compositional changes during the deposition process and mobility variations due to surface scattering. Preliminary results indicate that the films are weakly photoconductive, with lower photosensitivity for the thicker films.read more
Citations
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Journal ArticleDOI
On the electrical and optical properties of CdS films thermally deposited by a modified source
TL;DR: In this paper, a van der Pauw four-probe arrangement was used for measuring the electrical resistivity, which varies between 0.1 × 10 4 and 8.18× 10 4 Ωcm.
Journal ArticleDOI
On the Van der Pauw method of resistivity measurements
TL;DR: The Van der Pauw method is one of the most effective and widely used methods of the four-probe mode of determining the resistivity of materials in the form of thin films.
Journal ArticleDOI
Investigations on the physical properties of the polycrystalline ZnS thin films deposited by the chemical bath deposition method
F. Gode,C. Gumus,Muhsin Zor +2 more
TL;DR: In this paper, a transparent and polycrystalline zinc sulfide (ZnS) thin films were prepared by the chemical bath deposition (CBD) technique onto glass substrates with aqueous solution of zinc acetate, thiourea, triethanolamine and tri-sodium citrate at pH of about 10.55.
Journal ArticleDOI
The structural, electrical and optical properties of CdS thin films as a function of pH
TL;DR: In this article, Cadmium sulfide (CdS) thin films have been deposited on glass substrates at 30°C for 36h using chemical bath deposition technique.
Journal ArticleDOI
Effect of some spray pyrolysis parameters on electrical and optical properties of ZnS films
TL;DR: In this paper, the effects of deposition time (10-30 min) and substrate temperature (300-500 °C) on polycrystalline ZnS films of cubic phase were studied.
References
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Book ChapterDOI
A method of measuring specific resistivity and hall effect of discs of arbitrary shape
Journal ArticleDOI
Theory of Photoconductivity in Semiconductor Films
TL;DR: In this paper, the authors analyzed a model which incorporates the above characteristics of a photoconductive film, except for the space charge effects, and derived numerical values for responsivity, noise, and sensitivity.
Journal ArticleDOI
CdS–CdTe Solar Cell Prepared by Vapor Phase Epitaxy
TL;DR: In this article, an epitaxial growth of CdS on pCdTe wafers was extensively studied, and properties of the cells were extensively studied; the best cell exhibited a solar conversion efficiency of 10.5% under illumination by sunlight (AM1.3, 68 mW/cm2), and 6.0% under simulated sunlight, which was attributed to the reduction in both the series resistance and surface recombination.
Journal ArticleDOI
Role of defects in determining the electrical properties of CdS thin films. I. Grain boundaries and surfaces
TL;DR: In this paper, the relationship between the electronic properties of mobility and resistivity, and electron scattering from film defects in slowly deposited cadmium sulphide polycrystalline thin films is investigated.
Book ChapterDOI
Cadmium sulfide solar cells
TL;DR: The suitability of CdS cells for large solar panels and microcircuitry, and their low cost, are emphasized in this paper, where the development, fabrication and applications of thin-film solar cells are reviewed in detail.
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