Xiao Dequan, Bulat Felipe A, Yang Weitao, Beratan David N
Department of Chemistry, Duke University, Durham, North Carolina 27708, USA.
Nano Lett. 2008 Sep;8(9):2814-8. doi: 10.1021/nl801388z. Epub 2008 Aug 12.
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.
对供体/受体取代纳米管的非线性电子响应的研究表明，其行为既令人惊讶，又在性质上不同于传统共轭有机物种。我们发现碳纳米管既作为电子桥又作为受体，从而形成了一种用于有效设计大的第一超极化率的供体-纳米管范式。我们还发现，相对于纳米管调整供体的取向，可以显著提高第一超极化率。
