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Buchs, G. (author), Barkelid, K.M. (author), Bagiante, S. (author), Steele, G.A. (author), Zwiller, V. (author)
We use scanning photocurrent microscopy (SPCM) to investigate individual suspended semiconducting carbon nanotube devices where the potential profile is engineered by means of local gates. In situ tunable p-n junctions can be generated at any position along the nanotube axis. Combining SPCM with transport measurements allows a detailed...
journal article 2011