Aligned growth of gold nanorods in PMMA channels: parallel preparation of nanogaps

TY - JOUR

T1 - Aligned growth of gold nanorods in PMMA channels

T2 - parallel preparation of nanogaps

AU - Jain, Titoo

AU - Lara-Avila , Samuel

AU - Kervennic, Yann-Vai

AU - Moth-Poulsen, Kasper

AU - Nørgaard, Kasper

AU - Kubatkin, Sergey

AU - Bjørnholm, Thomas

PY - 2012/5/22

Y1 - 2012/5/22

N2 - We demonstrate alignment and positional control of gold nanorods grown in situ on substrates using a seed-mediated synthetic approach. Alignment control is obtained by directing the growth of spherical nanoparticle seeds into nanorods in well-defined poly(methyl methacrylate) nanochannels. Substrates with prepatterned metallic electrodes provide an additional handle for the position of the gold nanorods and yield nanometer-sized gaps between the electrode and nanorod. The presented approach is a novel demonstration of bottom-up device fabrication of multiple nanogap junctions on a single chip mediated via in situ growth of gold nanorods acting as nanoelectrodes.

AB - We demonstrate alignment and positional control of gold nanorods grown in situ on substrates using a seed-mediated synthetic approach. Alignment control is obtained by directing the growth of spherical nanoparticle seeds into nanorods in well-defined poly(methyl methacrylate) nanochannels. Substrates with prepatterned metallic electrodes provide an additional handle for the position of the gold nanorods and yield nanometer-sized gaps between the electrode and nanorod. The presented approach is a novel demonstration of bottom-up device fabrication of multiple nanogap junctions on a single chip mediated via in situ growth of gold nanorods acting as nanoelectrodes.

U2 - 10.1021/nn204986y

DO - 10.1021/nn204986y

M3 - Journal article

SN - 1936-0851

VL - 6

SP - 3861

EP - 3867

JO - A C S Nano

JF - A C S Nano

IS - 5

ER -