Photocurrent spectroscopy of (n, m) sorted solution-processed single-walled carbon nanotubes.

Engel, Michael; Moore, Katherine E; Alam, Asiful; Dehm, Simone; Krupke, Ralph; Flavel, Benjamin S · ACS Nano · 2014

basic_science · Level V

Where this comes from

Abstract

Variable-wavelength photocurrent microscopy and photocurrent spectroscopy are used to study the photoresponse of (n, m) sorted single-walled carbon nanotube (SWNT) devices. The measurements of (n, m) pure SWCNT devices demonstrate the ability to study the wavelength-dependent photoresponse in situ in a device configuration and deliver photocurrent spectra that reflect the population of the source material. Furthermore, we show that it is possible to map and determine the chirality population within a working optoelectronic SWCNT device.