Aligned Growth of Gold Nanorods in PMMA Channels: Parallel Preparation of Nanogaps
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- 作者：Titoo Jain ; Samuel Lara-Avila ; Yann-Vai Kervennic ; Kasper Moth-Poulsen ; Kasper N酶rgaard ; Sergey Kubatkin ; Thomas Bj酶rnholm
- 刊名：ACS Nano
- 出版年：2012
- 出版时间：May 22, 2012
- 年：2012
- 卷：6
- 期：5
- 页码：3861-3867
- 全文大小：469K
- 年卷期：v.6,no.5(May 22, 2012)
- ISSN：1936-086X
文摘
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 viain situ growth of gold nanorods acting as nanoelectrodes.