Haight Richard, Sekaric Lidija, Afzali Ali, Newns Dennis
IBM TJ Watson Research Center, Yorktown Heights, New York 10598, USA.
Nano Lett. 2009 Sep;9(9):3165-70. doi: 10.1021/nl901351h.
Attachment of a simple polar molecule, terpyridine, to the surfaces of Si nanowires with diameters ranging from 7-100 nm was investigated with two terminal conductivity measurements, a unique single nanowire photoelectron spectroscopy, and theoretical analysis. Our experiments reveal the details of molecule-nanowire bonding and charge transfer, diameter dependent Fermi level shifts, and acid attachment leading to conductivity in the cylindrical molecular nanolayer surrounding the nanowire.
通过双端电导率测量、独特的单纳米线光电子能谱以及理论分析，研究了简单极性分子三联吡啶附着在直径范围为7至100纳米的硅纳米线表面的情况。我们的实验揭示了分子与纳米线键合和电荷转移的细节、与直径相关的费米能级移动，以及酸附着导致纳米线周围圆柱形分子纳米层产生导电性的情况。
