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Quartz crystal microbalance (QCM) modified with graphene has been fabricated using solution drop-coating method and used for the detection of formaldehyde. Measurement was based on frequency shifts due to the adsorption of vapor at the surface of modified electrode. It was found that frequency shifts were linear to the concentrations of analytes in the range of 10 and 100 ppm with the correlation...
NiZn Ferrite film was deposited on silicon oxide particles by using chemical plating. Samples with different deposition time 0.5 h, 1.0 h and 2.0 h were prepared and analyzed. SEM and XRD were used to characterize the morphology and structure of composite. VSM and impedance analyzer system were used to measure the magnetic property. It was shown that ferrite was successful deposited to silicon oxide...
ZnO thin films have been deposited on (0001) sapphire substrates using potassium (K) as a dopant by radio frequency magnetron sputtering technique. The electrical properties, crystallinity and surface morphology of as-grown ZnO films are investigated by Hall measurement, X-ray diffraction and atom force microscopy. Results show that the structure and electrical properties of p-K:ZnO films are strongly...
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