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Article
Chemical and sol–gel processing of tellurite glasses for optoelectronics
Recent developments in the application of sol–gel processing technology for tellurite glass systems are reviewed and reported. The processing of telurite glasses via sol–gel entails some difficulties, mainly d...
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Article
Investigations into sol-gel silica and silica hybrid coatings for dielectromagnetic soft magnetic composite applications
A series of inorganic and organic–inorganic hybrid silica coatings were synthesised by a sol-gel process from tetraethoxysilane (TEOS) and methyltrimethoxysilane (MTMS) precursors, and used to investigate thei...
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Article
Electrophoretic deposition of alkaline earth coatings from EDTA complexes
A novel process route combining electrophoretic deposition (EPD) and ethylene-diamine-tetra-acetic acid (EDTA) complexation has been developed and used to produce crack-free coatings of alkaline earth oxides w...
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Article
Processing and characterisation of sol-gel glasses and powders in the system TeO2-TiO2
Sol-gel processing routes have been developed for the production of thin films and powders in the system TeO2-TiO2 from tellurium and titanium alkoxides. The structure and properties of the resultant materials ha...
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Article
Sol-gel processing of tellurite powder
Tellurium ethoxide is highly sensitive to moisture in air and water. The hydrolysis and condensation of tellurium ethoxide exposed under different levers of water and moisture are investigated in this work and...
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Article
Photoelectric Measurements on Chloroaluminium Phthalocyanine/Titanium Oxide Heterojunctions
Heterojunctions were constructed, consisting of a 50 nm thick sol-gel derived titanium dioxide (TiO2) layer and a 500 nm thick thermally evaporated chloroaluminium phthalocyanine (ClAlPc) film sandwiched between ...
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Article
Enhancement of electrical conductivity and emission stability of oxide cathodes using Ni addition
An investigation has been carried out into the use of conductive phase additions to enhance the conductivity and emission behavior of the oxide cathode coating as used in CRTs. Electrical and emission characte...
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Article
Preparation of alkaline earth carbonates and oxides by the EDTA-gel process
The ethylene-diamine-tetra-acetic acid (EDTA)-gel process has been used to produce carbonates and oxides of the alkaline earth elements Ba, Sr and Ca and their solid solutions. These materials have a range of ...
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Article
Thermal decomposition and electrical conductivity of oxide cathode emission materials
Thermal decomposition and electrical conductivity of oxide cathode emission materials used for cathode ray tubes (CRTs) have been studied under different heat treatment conditions for commercial sprayed cathod...
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Article
Sol-Gel Processing of Tellurium Oxide and Suboxide Thin Films with Potential for Optical Data Storage Application
A novel sol-gel processing route has been developed for the production of tellurium oxide (TeO2) and tellurium suboxide (TeO x ) thin films. The process has been used to deposit ...
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Article
Preparation of TeO2-TiO2 thin films by sol-gel process
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Article
Sol-Gel Derived TiO2/Lead Phthalocyanine Photovoltaic Cells
Transparent TiO2 films were deposited onto a base electrode comprising an InSnO2 glass substrate using the (alkoxide) sol-gel technique. Lead phthalocyanine was subsequently vacuum sublimed onto the TiO2 surfa...
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Article
Sol-gel approach to preparing germanium disulphide
A sol-gel route to germanium disulphide reported in the literature, via dihydrogen sulphide treatment of germanium tetra-ethoxide, has been re-examined. It has been found that the reported X-ray diffraction pa...
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Article
Sol-gel approach to preparing germanium disulphide
A sol-gel route to germanium disulphide reported in the literature, via dihydrogen sulphide treatment of germanium tetra-ethoxide, has been re-examined. It has been found that the reported X-ray diffraction pa...
