Synthesis and optimization of tungsten and tungsten oxide films produced by laser ablation
نویسندگان
چکیده
منابع مشابه
Structural and mechanical properties of nanostructured tungsten oxide thin films
This study presents structural and mechanical properties of WO3 thin films deposited on glass substrates at different temperatures by radio frequency reactive magnetron sputtering. WO3 films deposited at temperatures up to 200uC are found as amorphous, but crystalline at 300 and 400uC. Chemical analysis reveals the overstoichiometry of the films. The diffusion of sodium ions from glass substrat...
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We investigated the expansion features of femtosecond laser generated tungsten nanoparticle plumes in vacuum. Fast gated images showed distinct two components expansion features, viz., plasma and nanoparticle plumes, separated by time of appearance. The persistence of plasma and nanoparticle plumes are 500 ns and 100 ls, respectively, and propagating with velocities differed by 25 times. The es...
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Evaporation of WO3.0 powder during transmission electron microscopy resulted in the formation of nanofibers of WO2.9, which deposited on adjacent cooler regions of the carbon substrate. Controlled experiments using the inert gas condensation method were performed to investigate the formation mechanism of the nanofibers. Depending on the growth conditions, different morphologies of WO2.9 phase w...
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Inorganic metal oxides have shown potential as matrices for assisting in laser desorption ionization with advantages over the aromatic acids typically used. Rhenium and tungsten oxides are attractive options due to their high work functions and relative chemical inertness. In this work, it is shown that ReO3 and WO3 , in microparticle (μP) powder forms, can efficiently facilitate ionization of ...
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Globally scalable sunlight-driven devices that convert solar energy into storable fuels will require efficient light absorbers that are made of non-precious elements. Suitable photoanode materials are yet to be discovered. Here we utilised the timesaving nature of pulsed-laser-in-liquids synthesis and prepared a series of neat and mixed-metal tungsten oxide photoanode materials to investigate t...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2007
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/59/1/062