Publications [#231939] of David N. Beratan

Journal Articles
  1. Xiao, D; Bulat, FA; Yang, W; Beratan, DN, A donor-nanotube paradigm for nonlinear optical materials., Nano Letters, vol. 8 no. 9 (September, 2008), pp. 2814-2818 [18698728], [doi] .

    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.