Journal ArticleDOI
Electrical Properties of Nanocomposites
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TLDR
In this article, the state-of-the-art for synthesizing composites of nanometer-sized phases (metal, semiconductor or ceramic) dispersed in a matrix has been reviewed.Abstract:
The present state-of-the-art for synthesizing composites of nanometer-sized phases (metal, semiconductor or ceramic) dispersed in a matrix has been reviewed. Both dc and ac electrical properties of different nanocomposites synthesized have been described. The theoretical models used to explain the experimental results are discussed. It appears that there is a need to have newer theoretical models developed to understand the ac electrical properties of metal-ceramic nanocomposites.read more
Citations
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Self-organization of CdSe nanocrystallites into three-dimensional quantum dot superlattices
TL;DR: In this paper, the self-organization of CdSe nanocrystallites into three-dimensional semiconductor quantum dot superiattices (colloidal crystals) is demonstrated.
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Estimation of the physical properties of nanocomposites by finite-element discretization and Monte Carlo simulation
TL;DR: This paper reviews and enhances numerical models for determining thermal, elastic and electrical properties of carbon nanotube-reinforced polymer composites and validated by comparison with various experimental datasets reported in the recent literature.
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Preparation of alumina–silica–nickel nanocomposite by in situ reduction through sol–gel route
TL;DR: In this paper, the presence of nickel particles of size ∼20nm in the nano-pores of an alumina-silica nanocomposite has been detected using X-ray diffraction and transmission electron micrograph.
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Preparation of silica-molybdenum carbide nanocomposite by in situ reduction
TL;DR: In this paper, the average particle size of molybdenum carbide is in the range of 5-15 nm and the detailed XRD analyses coupled with thermodynamic arguments show that reduction of ammonium moly bdate is predominantly by in situ generated hydrogen.
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Frequency dependent magnetoconductivity and conductivity study in Ni-dispersed silica nano-composite produced by sol-gel technique
A. Sarkar,Parimal Ghosh,Sukalyan Chattopadhyay,Ajit Kumar Meikap,A. Bhattacharyay,S.K. Chatterjee,G. C. Das,S. Mukherjee,Manoj K. Mitra +8 more
TL;DR: The low frequency (20 Hz to 1 MHz) ac conductivity and magnetoconductivity behavior of ceramic nanocomposite (Ni-SiO2) at low temperature down to 77 K are reported in this article.
References
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Journal ArticleDOI
Monolithic glass formation by chemical polymerization
TL;DR: In this article, it has been shown that monolithic oxide glasses can be formed by chemical polymerization at low temperatures and that high-temperature reactions such as crystallization, phase separation, etc., which restrict glass formation in certain systems and regions, can largely avoid.
Journal ArticleDOI
Photodetachment and photofragmentation studies of semiconductor cluster anions
TL;DR: The electron affinities (EA) of the corresponding neutral clusters are roughly bracketed by measuring the fluence dependence for photodetachment from anions at discrete probe laser wavelengths.
Journal ArticleDOI
Electrical and defect thermodynamic properties of nanocrystalline titanium dioxide
Philippe Knauth,Harry L. Tuller +1 more
TL;DR: In this article, the electrical properties of dense nanocrystalline TiO2 ceramics with an average grain size of 35 nm were investigated by impedance spectroscopy and compared with a coarsened material with micron size grains.
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