Organisation of carbon nanotubes and semiconductor nanowires using lateral alumina templates

Didier Pribat (1) , Costel Sorin Cojocaru (2) , M. Gowtham (1) , B. Marquardt (1) , T. Wade (3) , Jean Eric Wegrowe (3) , B.S. Kim (4)

1 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]
2 NanoMaDe
3 LSI - Laboratoire des Solides Irradiés - Irradiated Solids Laboratory
4 Samsung SDI Corporate R&D Center

Carbon nanotubes and semiconductor nanowires have been thoroughly studied for the future replacement of silicon-based com- plementary metal oxide semiconductor (CMOS) devices and circuits. However, the organisation of these nanomaterials in dense transistor arrays, where each device is capable of delivering drive currents comparable with those of their silicon counterparts is still a big challenge. Here, we present a novel approach to the organisation of carbon nanotubes and semiconductor nanowires, based on the use of porous lateral alumina templates obtained by the controlled anodic oxidation of aluminium thin films. We discuss the growth of nanomaterials inside the pores of such templates and show the feasibility of our approach. Our first results point to further work on controlling the synthesis of catalyst nanoparticles at the bottom of the pores, these particles being necessary to nucleate and sustain the growth of carbon nanotubes or semiconductor nanowires.

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

Didier Pribat, Costel Sorin Cojocaru, M. Gowtham, B. Marquardt, T. Wade, et al.. Organisation of carbon nanotubes and semiconductor nanowires using lateral alumina templates. Comptes Rendus. Physique, 2009, 10 (4), pp.320--329. ⟨10.1016/j.crhy.2009.05.007⟩. ⟨hal-00794987⟩