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Combinational Ag nanoparticle assembly substrates with multi-graded nanoparticle densities were fabricated through a dynamic shadow deposition of a collimated cluster beam in oblique incidence. The substrates were used to investigate the interactions between the surface plasmons of the Ag nanoparticle arrays and fluorescent molecules. Rhodamine 6G molecules directly adsorbed on the substrates show...
We report the application of dense palladium nanoparticle arrays for room-temperature hydrogen sensor with sub-second response time. The palladium nanoparticle arrays were fabricated in between a pair of interdigital electrodes by means of gas phase cluster beam deposition. The coverage of the nanoparticles was controlled by in-situ monitoring the conductance between the electrodes. We demonstrate...
In this paper, we report on a structural and magnetic investigation of a series of Co-doped La0.4Sr0.6TiO3-δ DMS nanocrystals synthesized by a solvothermal technique [3] and subsequently treated by a high-temperature (800°C) annealing in Ar atmosphere. We found that no secondary phases or contaminations could be detected for samples with Co dopant concentration below 5 at %, indicating that the observed...
Cu-doped ZnO nanostructured films have been prepared by wet chemical method. The optical band-gap changes with the increase of Cu doped concentration, which is attributed to the increase of oxygen vacancy concentration by laser-Raman spectroscopy.
Nanojet means that the liquid is forced to pass through the nozzle with the nanosize diameter, we report here that nanojet was formed for the first time in lab by heating the PbO coated Pb clusters. In this experiment, the coated clusters are heated to more than 200 C and it was found that the inner Pb core melted and ran out from the cracked outer shell with a 200-nm-long(as long) trail. The in situ...
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