A donor-nanotube paradigm for nonlinear optical materials.
Studies of the nonlinear electronic response of donor/acceptor substituted nanotubes suggest a behavior that is both surprising and qualitatively distinct from that in conventional conjugated organic species. We find that the carbon nanotubes serve as both electronic bridges and acceptors, leading to a donor-nanotube paradigm for the effective design of large first hyperpolarizabilities. We also find that tuning the donor orientation, relative to the nanotube, can significantly enhance the first hyperpolarizability.
Xiao
Dequan
D
Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
Bulat
Felipe A
FA
Yang
Weitao
W
Beratan
David N
DN