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We propose a device that can measure pulse waves at various points on human body with high sensitivity. Pulse wave velocity was calculated from a synchronized pulse wave measurement on two points. The device had a piezoresistive cantilever placed on silicone oil. The cantilever with oil was embedded in polydimethylsiloxane (PDMS). Pressure waves from arteries can be well conveyed to the cantilever,...
Electronic properties of single-walled carbon nanotubes (SWNTs) filled with Fe nanoparticles are studied by fabricating them as the channels of field-effect transistors (FETs). Our results reveal that Fe-filled SWNTs at low filling levels can exhibit high-performance p-n junction diode behavior. The synthesis of Fe-filled SWNTs is confirmed by transmission electron microscopy (TEM) observation, and...
We report electrical transport properties of resonance tunneling transistors fabricated using C60-filled metallic double-walled carbon nanotubes. All the examined devices exhibit a strong negative differential resistance (NDR) behavior, and the high peak-to-valley current ratios more than 103 are observed at room temperature. More importantly, the observed NDR characteristics remain stable under forward...
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