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Issue 32, 2012
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UV induced covalent assembly of gold nanoparticles in linear patterns on oxide free silicon surface

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Abstract

UV photon induced assembly of ω-alkenyl terminated gold nanoparticles (AuNPs) on pre-defined sites of crystalline silicon surface through covalent interaction is demonstrated. Highly ordered and stable hexadecyl monolayer on oxide free silicon surface is used to construct the photopattern and then the linear patterns of hydrogen-terminated sites were effectively used to assemble AuNPs by UV induced hydrosilylation. This approach is entirely based on oxide free interfaces, where both robust organic monolayer and AuNPs are assembled in a linear fashion. The developed strategy promises immense potential to miniaturize silicon based devices for technological applications, where electron coupling between the nanoparticles and the silicon surface is very significant. This work further paving the new direction to immobilize various types of nanoparticles in different architecture on oxide free crystalline silicon surface to exploit their utilization in technological applications.

Graphical abstract: UV induced covalent assembly of gold nanoparticles in linear patterns on oxide free silicon surface

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Article information


Submitted
07 May 2012
Accepted
08 Jun 2012
First published
11 Jun 2012

J. Mater. Chem., 2012,22, 16546-16551
Article type
Paper

UV induced covalent assembly of gold nanoparticles in linear patterns on oxide free silicon surface

O. P. Khatri, T. Ichii, K. Murase and H. Sugimura, J. Mater. Chem., 2012, 22, 16546
DOI: 10.1039/C2JM32875E

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