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Dynamic measurements on carbon nanotube (CNT) multiscale glass fiber reinforced polymers (GFRPs) were performed to assess the usage of self-sensing composite structures in vibration environment. To achieve that purpose, a composite cantilever beam was tested in static and dynamic conditions. Applied strain was measured by means of strain gauges mounted on the tested specimen. Static measurements were...
In this work, we propose a simple method to form uniform carbon nanotube network (CNTN) in wafer-scale, which is completely compatible to thin-film transistors (TFTs) process and can achieve large-area uniformity and stable device performance. From the plot of on-current versus off-current, it is clear that devices with various dimensions are divided into two groups, and the threshold value for these...
We have successfully demonstrated the direct pick and place of CNT bundles from a CNT growth substrate to a working specimen for strain sensing applications. The whole assembly process can take as little as one minute by manual operation under a probe station. A strain sensor based on CNT bundles has been constructed by adding electrical contacts. Experimental results show 2.1% relative resistance...
A comprehensive investigation has been carried out to develop nano-adhesive by studying the influences of post-treatment of carbon nanotue (CNT), dispersing parameter, CNT content and matrix on the adhesive performance. It has been found that both thermal resistance (Rth) and volume resistance reduced greatly by incorporating CNT into the epoxy. The uniform distribution of CNT has been achieved by...
We report the development of high-speed carbon nanotube (CNT) based infrared (IR) sensors which operate at room temperature. When a single CNT is manipulated between two different metal electrodes, a Schottky diode is formed at the CNT-metal interface, so photocurrent is generated when there is IR illumination. The devices exhibit a fast optical response time of 15 μs and the response time is limited...
We fabricated a carbon nanotube (CNT) via interconnect and evaluated its electrical properties. We found that the CNT via resistance was independent of temperatures, which suggests that the carrier transport is ballistic. From the via height dependence of the resistance, the electron mean free path was estimated to be about 80 nm, which is similar to the via height predicted for hp32-nm technology...
Carbon nanotube (CNT) based bioconjugates are among the candidates for molecular level electronics. In this work, we have studied transport mechanism of single walled carbon nanotube (SWNT) - peptide nucleic acid (PNA) bioconjugates. Electrical conductivity of the bioconjugates was studied at temperatures ranging from 70 K to 350 K. Negative differential resistance (NDR) behavior was observed at almost...
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