  We produce 120 um thick buckypapers from aligned carbon nanotubes. Transport
characteristics evidence ohmic behavior in a wide temperature range, non
linearity appearing in the current-voltage curves only close to 4.2 K. The
temperature dependence of the conductance shows that transport is mostly due to
thermal fluctuation induced tunneling, although to explain the whole
temperature range from 4.2 K to 430 K a further linear contribution is
necessary. The field emission properties are measured by means of a
nanocontrolled metallic tip acting as collector electrode to access local
information about buckypaper properties from areas as small as 1 um2. Emitted
current up to 10-5A and turn-on field of about 140V/um are recorded. Long
operation, stability and robustness of emitters have been probed by field
emission intensity monitoring for more than 12 hours at pressure of 10-6 mbar.
Finally, no tuning of the emitted current was observed for in plane applied
currents in the buckypaper.
