Directing the Growth of Highly Aligned Gold Nanorods through a Surface Chemical Amidation Reaction

摘要

Au nanorods (NRs)represent an interesting one-dimensional (1D)nanostructure that has recently been synthesized and patterned directly on surfaces through seed-mediated chemical growth of surface-attached Au nanoparticle (NP)"seeds".One drawback of this method is that the NRs were assembled with uncontrolled orientation and alignment.Here we describe a new procedure for growing highly aligned Au NRs directly on a Si(100)substrate.A simple chemical amidation reaction on NH_2-functionalized Si(100)promotes the growth of highly aligned NRs extremely well.