Carbon nano-tubes are self assembled between two electrodes using an electric field for sensor and transistor applications. Transistor behavior, source/drain current versus gate voltage, was demonstrated.
Robert H. Detig, "Electrostatic Self Assembly Of Carbon Nano-Tubes" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP24), 2008, pp 895 - 896, https://doi.org/10.2352/ISSN.2169-4451.2008.24.1.art00111_2