Conjugated polymers incorporated
with cycloplatinated complexes <b>(P1–Pt</b> and <b>P2–Pt</b>) were used as
dispersants for single-walled carbon nanotubes (SWCNTs). Significant
changes in the UV–vis absorption spectra were observed after
the formation of the polymer/SWCNT hybrids. Molecular dynamics (MD)
simulations revealed the presence of a strong interaction between
the cycloplatinated complex moieties and the SWCNT surface. The photoinduced
electron transfer processes in these hybrids were strongly dependent
on the type of the comonomer unit. Upon photoexcitation, the excited <b>P1–Pt</b> donates electrons to the SWCNT, while <b>P2–Pt</b> accepts electrons from the photoexcited SWCNT. These observations
were supported by results from Raman and femtosecond time-resolved
transient absorption spectroscopy experiments. The strong electronic
interaction between the Pt complexes and the SWCNT gives rise to a
new hybrid system that has a controllable photoinduced electron transfer
flow, which are important in regulating the charge transport processes
in SWCNT-based optoelectronic devices
