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This paper reports a packaged energy harvester using the novel method of micro-molding bulk electrets of polytetrafluoroethylene (PTFE). Compared with thin film electrets prepared by spin-coating method, bulk PTFE electrets are of higher trapped charge density by 1.2∼2 times, and improved charge storage stability by 1.3 times in charge retain rate over 10 days. Further, the micromolding method guarantees...
A novel method to construct a sensitive amperometric sensor for hydrogen peroxide (H2O2) is described. It is composed of highly dispersed palladium nanoparticles on a vertically aligned nickel-coated silicon micro-channel plate (MCP). The morphology of the Pd/Ni/Si-MCP electrode is characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The electrode with a three-dimensional...
Atmospheric-pressure plasma jet (APPJ) has attracted tremendous attention in the past decade mainly due to its low cost and flexibility without the use of expensive vacuum equipment. It has found numerous applications such as surface cleaning, surface modification, thin-film deposition and recently biomedical applications that may include sterilization, blood coagulation, cell growth enhancement and...
In this work, a top-down approach has been adopted for the first-time to pattern single-crystalline Si NW on SOI substrates using planar technology processes. The two critical parameters of the nanowire are defined by the thickness of Si active layer and the width of a masking spacer. The NW has an elliptical cross-section having a semimajor axis less than 150 nm and the semiminor axis depending on...
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