Spray-gun deposition of catalyst for large area and versatile synthesis of carbon nanotubes

Aurelien Gohier (1) , Ki Hwan Kim (2) , Evgeny Norman (2) , Louis Gorintin (2) , Paolo Bondavalli (3) , Costel Sorin Cojocaru (1)

1 NanoMaDe
2 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]
3 Thales Research and Technology [Palaiseau]

Spray gun deposition technique was investigated for large area deposition of nano-catalysts. In particular, we studied iron chloride salts solutions as catalyst precursor for the synthesis of carbon nanotubes (CNTs). Iron chloride salts are shown to decompose upon thermal annealing into Fe(III) oxide based species that make it suitable for further growth of various carbon nanotube structures. Depending on the spraying process, versatile synthesis of 2-D single-walled carbon nanotube network as well as vertically aligned carbon nanotubes arrays on functional substrates can be achieved. Such simple process for the preparation of CNT-based architecture opens new perspectives in the field of thin-film transistor and nanostructured electrodes.

Domaines: Science des matériaux [cond-mat.mtrl-sci]

Aurelien Gohier, Ki Hwan Kim, Evgeny Norman, Louis Gorintin, Paolo Bondavalli, et al.. Spray-gun deposition of catalyst for large area and versatile synthesis of carbon nanotubes. Applied Surface Science, 2012, 258, pp.6024-6028. ⟨10.1016/j.apsusc.2012.02.115⟩. ⟨hal-00793869⟩