Carbon nanotube junctions obtained by pulsed liquid injection chemical vapour deposition
Por:
Garcia A.G., Correa, MJD, Robles, JFP, Romero A.H., Velasco-Santos C., Apatiga L.M.
Publicada:
1 jul 2010
Resumen:
The effect of substrate surface roughness on the synthesis of carbon nanotube (CNT) junctions is studied. CNTs were obtained by a pulsed liquid injection chemical vapour deposition system (PLICVD) and grown on quartz substrates with different roughnesses. Nickel particles were used as catalyst and acetone as the carbon precursor. Results shown that CNTs growth depend strongly on the substrate irregularity. When roughness is present, the presence of CNT junctions are increased. On the quartz surface, without any modification of roughness, CNTs are not obtained. Thus, a growth mechanism for CNT junctions, based on the substrate roughness is suggested. This method represents an important alternative to produce CNTs for applying them in nanoelectronic devices. (C) 2010 Elsevier B.V. All rights reserved.
Filiaciones:
Garcia A.G.:
Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Lib. Norponiente #2000 Fracc, Real de Juriquilla, Querétaro Qro., C.P. 76230, Mexico
Romero A.H.:
Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Lib. Norponiente #2000 Fracc, Real de Juriquilla, Querétaro Qro., C.P. 76230, Mexico
Velasco-Santos C.:
UNAM, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76000, Mexico
Apatiga L.M.:
UNAM, Ctr Fis Aplicada & Tecnol Avanzada, Queretaro 76000, Mexico
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