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The deposition of as‐received nanodiamond (ND) particles on silicon substrate was performed by the pulsed spray technique, using a dispersion of 250 nm ND in 1,2‐dichloroethane. A set of samples was sprayed by varying the number of pulses from 1 to 500. The morphology of the samples was characterized and monitored by means of optical, atomic force, and confocal microscopies. At a low number of pulses, sparse diamond particles were observed, whereas at a high number of pulses dense/quasi‐continuous ND layers were formed. The electrical conductivity measurements of surface silicon substrate evidenced a remarkable change for the presence of ND particles. This behavior is also found by theoretical simulations (finite element method). Finally, a comparison between the electrical resistances measured on these samples versus the pulse number and the inverse current density calculated as a …
Publication date: 
1 Dec 2015

Grazia Cicala, Alessandro Massaro, Luciano Velardi, Giorgio Saverio Senesi, Giuseppe Perna, Domenico Marzulli, Domenico Melisi, Giuseppe De Pascali, Antonio Valentini, Vito Capozzi

Biblio References: 
Volume: 212 Issue: 12 Pages: 2862-2868
physica status solidi (a)