Growth of individual carbon nanotubes on an array of TiN/Ni nanodots patterned by e-beam lithography and defined by dry etching for field emission application

Xiang-Lei Han (1) , Jean-Paul Mazellier (2) , Laurent Gangloff (2) , Florian Andrianiazy (2) , Zhenkun Chen (1) , Costel Sorin Cojocaru (3) , Jean-Luc Maurice (3) , Emilien Peytavit (1) , Jean-Francois Lampin (1) , Pierre Legagneux (2)

1 IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
2 TRT Thales Reasearch & Technology
3 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]

In this paper, we demonstrate a new technique to realize TiN/Ni nanodots array on silicon substrate using e-beam lithography and dry etching techniques. After patterning the Ni nanodisk (7 nm thick, 150 nm in diameter) at perfectly controlled location, individual vertically aligned carbon nanotubes (VACNTs) were grown using plasma-enhanced chemical-vapor deposition (PECVD). In addition, a field emission cathode (1 mm diameter circular emission area) based on a hexagonal array (20μm spacing) of individual VACNTs delivered a high emission current of 4.23 mA for an applied electric field of 22.5V/μm.

Keywords: Individual vertically aligned carbon nanotubes; Electron-beam lithography; Dry etching; Field emission

Domains: Physics [physics]; Condensed Matter [cond-mat]; Materials Science [cond-mat.mtrl-sci]

Xiang-Lei Han, Jean-Paul Mazellier, Laurent Gangloff, Florian Andrianiazy, Zhenkun Chen, et al.. Growth of individual carbon nanotubes on an array of TiN/Ni nanodots patterned by e-beam lithography and defined by dry etching for field emission application. 2013. ⟨hal-00880711⟩