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Nanometer-sized CdS, as a typical II-VI semiconductor, has unique properties in luminescence and photocatalysis. In the experiment, nano-sized CdS embedded in PVA was prepared by coordination transformation method, and the luminescence property was determined. It could be found that the emission wavelength of the sample will be blue-shifted, and the extent of the blue-shift decreases gradually with...
The CO2 bubbles clogging in anode flow field is a vital problem in development of liquid feed micro direct methanol fuel cells (μDMFC). In order to study the CO2 bubbles clogging behavior, an air-breathing transparent μDMFC with 180 μm wide serpentine channels in anode was fabricated. In situ visual investigation of the bubbles behavior in anode flow field was implemented on the microfluidics test...
In this paper, a novel silicon micromachining using CO2 laser has been demonstrated for the first time. The wavelength of CO2 laser is 10.64 mum and not absorbed by silicon material. So, it cannot do any micromachining for pure silicon. However, as we put a silicon on the top of a glass material, CO2 laser can etch the silicon, even etch through the wafer to be a hole structure. For example, a silicon...
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