Langmuir–Schaefer
Films for Aligned Carbon Nanotubes Functionalized with a Conjugate
Polymer and Photoelectrochemical Response Enhancement
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Abstract
Single-walled carbon nanotubes (SWCNTs)
were suspended in 1,2-dichloroethane by noncovalent functionalization
with a low-band-gap conjugated polymer <b>1</b> alternating
dialkoxyphenylene–bisthiophene units with benzo[<i>c</i>][2,1,3]thiadiazole monomeric units. The suspended <b>1</b>/SWCNT blend was transferred onto different solid substrates by the
Langmuir–Schaefer deposition method, resulting in films with
a high percentage of aligned nanotubes. Photoelectrochemical characterization
of <b>1</b>/SWCNT thin films on indium–tin oxide showed
the benefits of SWCNT alignment for photoconversion efficiency