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Novel non-fragile porous conductive nanocomposite vapor sensors with variant volume porosities and specific surface areas have been fabricated from PMMA and carbon nanoparticles. Sensing films were obtained by well known dry-cast non-solvent induced phase separation (NIPS) method. Porous composite structures have been characterized by SEM, BET and water evaporation methods. Response behavior of fabricated...
Interest in the growth of carbon nanotubes by chemical vapor deposition technique using transition 3d metals as catalyst support is still a subject of intense research. In this paper, we report the morphological and magnetic properties of Co films with varying thickness prior to and post de-wetting that enabled the formation of island-like structures. Interestingly enough, we found different magnetic...
Micellles of poly(cyclohexyl metharylate)-block-poly(2-vinylpyridine) (PCMA-b-P2VP) block copolymer in methanol were used as nanoreactors to fabricate FeCl3 nanoparticles. Then the FeCl3-loaded micelles solution was used as an ink to print films with polydimethylsiloxane (PDMS) stamps, different morphologies of the FeCl3-loaded micellar films were left onto silicon substrates after printed. After...
Zinc oxide and carbon nanoparticle composite could be prepared using a single-step gas-phase reaction within a quartz tube reactor. Effect of nitrogen flow rate in a range of 1, 2 and 3 l/min on size and morphology of the composites was experimentally investigated at a temperature range of 900 to 1,100??C, Zn:C:Fe molar ratio of 10:10:1 and oxygen flow rate of 20 ml/min. Scanning electron microscopic...
We report on a novel method based on a plasma pre-treatment for controlled nanostructuration and patterning of iron catalyst particles from a continuous film in view of carbon nanotube growth. The effects of the hydrogen plasma conditions on the diameter and the density of the catalyst nanoparticles was studied and discussed. We were then able to propose a comprehensive mechanism for the metallic...
We introduce NanoPen, a novel technique for flexible, real-time reconfigurable, and large-scale light-actuated patterning of single or multiple nanoparticles such as metallic spherical nanoparticles, semiconducting and metallic nanowires, and carbon nanotubes.
Nanotechnologies are becoming ubiquitous as they spawn new products and are incorporated as enhancements of the familiar, so it should come as no surprise that nanotechnologies are being vigorously researched for applications in microelectronics packaging. High CNT thermal conductivity may be exploited for chip cooling in conductive and convective cooling systems. CNT alignment is critical for conductive...
This work aims to develop an anisotropic conductive adhesive (ACA) paste with improved thermal conductivity. ACA consists of a polymer based resin and conductive filler particles. We introduce an electrically insulating but thermally conductive phase into the adhesive. Nano and micro scale particles of alumina oxide, silicon carbide and carbon nanotubes are used with and without surface treatment...
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