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Pulverized mold residue of cured epoxy molding compound was reused to produce poly (vinyl chloride) composites with the aim to recycle resources in a more profitable and environmental concern way. The mold residue powder with functional groups on the surface was reactive to polar resins as the results of FT-IR spectrum (FT-IR). Mechanical tests, differential scanning calorimetry (DSC), vicat softening...
Luminescence properties of the oxidized Si-rich SiNx films prepared at low temperature were investigated. Strong photoluminescence from the samples can be observed at room temperature. The spectral profile exhibits some obviously modulated features upon the excited wavelength. By employing the oxidized Si-rich SiNx films as the luminescent active layers, the devices with low turn-on voltage have also...
Optical switches are important for applications in optical communications and photonic integrated circuits (PICs) to allow for selection of optical paths. In this work, a thermo-optic switch based on a Mach-Zehnder interferometer (MZI) is designed. A comparison and optimization of the switch components, including beam splitters, couplers and MZI, is carried out. A 1 × 2 switch using silicon nitride...
We report for the first time a facile lithography-free approach for fabricating nanopillars over large areas or in patterns. The key technique of this approach is that randomly-distributed nanoscale SiO2 patterns can be synthesized on substrates simply by removing photoresist with oxygen plasma bombardment. Those SiO2 nanopatterns may further function as masks in the following etching process for...
Electroluminescence devices based on nanocrystalline Si/SiO2 multilayers were fabricated and the luminescence can be observed both from vertical and lateral direction. Moreover, P-doped nanocrystalline Si/SiO2 multilayers were prepared and the improved electro-luminescence characteristics were achieved.
This paper reports well-controlled nanonail array with Si bodies and stacked SiO2 heads for biomedical nano-extractions and protein localizations. The nanonails with well controlled dimensions are fabricated by multi-crossed spacer technology which we have developed. The nail bodies with the minimum diameter of 24 nm and nailheads with 11 nm tip-radius are successfully achieved. 100 nm spacing and...
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