A mechanically stable and oriented scanning probe tip comprising a carbon
nanotube having a base with gradually decreasing diameter, with a sharp
tip at the probe tip. Such a tip or an array of tips is produced by
depositing a catalyst metal film on a substrate (10 & 12 in FIG. 1(a)),
depositing a carbon dot (14 in FIG. 1(b)) on the catalyst metal film,
etching away the catalyst metal film (FIG. 1(c)) not masked by the carbon
dot, removing the carbon dot from the catalyst metal film to expose the
catalyst metal film (FIG. 1(d)), and growing a carbon nanotube probe tip
on the catalyst film (16 in FIG. 1(e)). The carbon probe tips can be
straight, angled, or sharply bent and have various technical
applications.