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Investigations on the piezoresistive effect of poly-silicon nanofibns (PSNFs) have not been presented, since it is considered that their piezoresistive properties can become worse with film thickness decreasing. However, our experimental results indicated that the PSNFs (~100nm in thickness, even thinner) had a high gauge factor (>30) and low temperature coefficients of resistance and gauge factor,...
Brilliant blue mono-dispersed ZnS QDs have been synthesized using hydrothermal synthesis. The synthetic procedure provides some advantageous synthetic features such as a short preparation time with control over product dimensions using green conditions. These can then be organized into different special arrangements and their PL properties as well as XRD, TEM and UV-vis characterization are reported...
ZnO thin films are used for a number of MEMS-based sensors because of the piezoelectric and semiconducting properties. In certain class of devices, especially those using surface acoustic wave (SAW) technology on a layered substrate (such as ZnO on Si), it is a requirement to grow several micron thick ZnO layer which must be highly c axis oriented. In this attempt, we have deposited ZnO films by sol-gel...
A new chemical process to synthesize pure ZnO nanocrystal colloidal for bioimaging applications is reported. Zinc acetate dihydrate was dissolved and refluxed in a methanol solution at a low temperature (68degC) and ambient environment. Biocompatible surface capping agents were introduced to the synthesis process to control the particle nucleation and growth and, therefore, the particle size and its...
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