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In the present work, the sputtering deposition conditions allowing the achievement of (002)-oriented aluminum nitride (AlN) thin films on titanium (Ti) bottom electrode were assessed on both silicon and kapton substrates. The AlN grain orientation was enhanced by tuning the conditions used for the Ti deposition, particularly the radiofrequency (RF) power applied to Ti target and the total pressure...
We report hybrid inorganic/organic photovoltaic heterojunction structures based on quantum dot functionalized nanowires. Single crystalline ZnO nanowires were first functionalized with InP/ZnS core-shell quantum dots and then embedded in a conductive polymer hole matrix to achieve a low cost, high efficiency device structure. The device structures were characterized by scanning electron microscopy,...
We apply remote focusing to multi-focal multiphoton microscopy by simultaneously imaging multiple focal planes of Drosophila melanogaster olfactory neurons. This technology permits imaging the entire volume of the antennal lobe in a single scan.
Graphene is a new advanced material for microelectronics. Graphene films can be prepared by different techniques. One of the promising methods is the production of stable dispersions of graphene in water or organic solvents. We have developed a new approach for preparation of easily soluble expanded graphite using fluorinated graphite intercalation compounds as starting materials. Graphene sheets...
SiCf/SiC composites are one of the most promising advanced fusion reactor materials especially for the first wall/blanket because of their low induced radioactivity and excellent mechanical properties. There is no doubt that the performance of SiCf/SiC composite is much more dependent on the properties of SiC fiber. The synthesis process of SiC fibers from polycarbosilane (PCS) by pyrolysis process...
The effect of thermal annealing on the field emission properties of double-walled carbon nanotubes (DWCNT) grown by chemical vapour deposition is studied. The properties of the DWCNTs were examined using SEM, TEM, Raman and TGA analysis. It was found that high-temperature annealing enhances the field emission performance of DWCNTs
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