Carrier transport properties in single-walled carbon nanotubes studied by photoluminescence spectroscopy
نویسندگان
چکیده
We have investigated the photoluminescence (PL) of in individual single-walled carbon nanotubes (SWNTs) placed in field-effect transistor structures to study carrier transport in the SWNT. The relation between the recombination lifetime and carrier transit time has been evaluated from the drain-field dependence of PL intensity. Time-resolved photoluminescence of SWNTs dispersed in surfactant solution has also been studied to evaluate the recombination lifetime. From these results, the carrier saturation velocity was estimated.
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