Optical Voltammetry of Polymer-Encapsulated Single-Walled Carbon Nanotubes.

ABSTRACT: The semiconducting single-walled carbon nanotube (SWCNT), noncovalently wrapped by a polymeric monolayer, is a nanoscale semiconductor-electrolyte interface under investigation for sensing, photonics, and photovoltaic applications. SWCNT complexes are routinely observed to sensitize various electrochemical/redox phenomena, even in the absence of an external field. While the photoluminescence response to gate voltage depends on the redox potential of the nanotube, analogous optical voltammetry of functionalized carbon nanotubes could be conducted in suspension without applying voltage but by varying the solution conditions as well as the chemistry of the encapsulating polymer. Steady-state photoluminescence, absorbance, and in situ measurements of O₂/H₂O reactivity sho

SUBMITTER: Horoszko CP 

PROVIDER: S-EPMC7371339 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature