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We report here new aspects of CNT growth by CVD system where temperature increasing rate plays a key role in controlling the diameter, structural quality, and yield of CNTs. Temperature increasing rates were used in the range 100–600 °C/h and growth morphology was constantly monitored at every step by HRTEM, FESEM and Raman spectroscopy. Morphology as well as structural quality of CNTs is sharply...
Highly stable and sensitive detection of trace level (approximately 1 ppm) of NH3 gas at room temperature is demonstrated for single wall carbon nanotube (SWCNT)-based resistive sensor. The sensor device was comprised of two planer Au electrodes deposited on carbon nanotubes (CNTs) by thermal evaporation method followed by patterning with photolithography process. For the growth of high-quality SWCNTs,...
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