Please use this identifier to cite or link to this item:
|Title:||Transient photoconductivity of ternary CDSSE nanobelts as measured by time-resolved terahertz spectroscopy|
|Source:||Lu, J., Liu, H., Lim, S.X., Tang, S.H., Sow, C.H., Zhang, X. (2013-06-13). Transient photoconductivity of ternary CDSSE nanobelts as measured by time-resolved terahertz spectroscopy. Journal of Physical Chemistry C 117 (23) : 12379-12384. ScholarBank@NUS Repository. https://doi.org/10.1021/jp4043599|
|Abstract:||The frequency-and fluence-dependent transient photoconductivity in ternary CdSSe nanobelts is investigated using time-resolved terahertz spectroscopy. The carrier density and mobility are extracted by modeling the measured complex photoconductivity using the Drude-Smith model. Within the first few picoseconds of excitation, both the carrier density and mobility reach their maximum values and then decay gradually over tens to hundreds of picoseconds. The decay of free carriers is mainly attributed to fast surface trapping and structural-defect- mediated recombination. The surface trapping saturates rapidly with increasing excitation fluence attributable to the low trapping density on the nanobelt surface caused by self-passivation of surface defects during the growth process. © 2013 American Chemical Society.|
|Source Title:||Journal of Physical Chemistry C|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 21, 2018
WEB OF SCIENCETM
checked on Jan 17, 2018
checked on Feb 19, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.