Journal
APPLIED PHYSICS LETTERS
Volume 100, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3698097
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THz spectroscopy has been applied to investigate the photo-induced and intrinsic conductivity in SnO2 nanowires using the Drude-Smith model. The refractive index of the nanowires was found to decrease from 2.4 to 2.1 with increasing THz frequency and the dc mobility of the non-excited nanowires was determined to be 72 +/- 10 cm(2)/Vs. Measurements reveal that scattering times are carrier density dependent, while a strong suppression of long transport is evident. Intensity-dependent measurements provided an estimate of the Auger coefficient found to be gamma = (7.2 +/- 2.0) x 10(-31) cm(6)/s. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3698097]
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