Issue 37, 2013
From the journal:

Physical Chemistry Chemical Physics

Sacrificial polymer thin-film template with tunability to construct high-density Au nanoparticle arrays and their refractive index sensing†

Weiyong Yuan,‡a   Zhisong Lu,‡ab   Huili Wangc  and  Chang Ming Li*ab  

* Corresponding authors

a Institute for Clean Energy & Advanced Materials, Southwest University, Chongqing 400715, China
E-mail: ecmli@swu.edu.cn
Fax: +86-65-67911761
Tel: +86-65-67904485

b Chongqing Key Lab for Advanced Materials and Technologies of Clean Electrical Power Sources, Chongqing 400715, China

c School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore

Abstract

Great challenges still remain to assemble metal nanoparticles on a substrate with tunability, high density, robust stability, good dispersion and well-retained properties for various applications. Herein a new concept using a polymer thin-film as a sacrificial template is investigated to fabricate highly dense and well-dispersed nanoparticle arrays. In contrast to a conventional “hard” template, the polymer template is a porous multilayered film allowing in situ growth of Au nanoparticles with a restricted ripening mode, and tuning the nanoparticle size and density of the arrays is possible by simply adjusting the loading conditions. The prepared substrate-attached nanoparticle arrays demonstrate good thermal and chemical stability, while offering highly sensitive and tunable localized surface plasmon resonance (LSPR) refractive index sensing with a broad linear dynamic range. This method could be extended to controllably fabricate other robust and “clean” nanoparticle arrays on various substrates for various applications including sensing, catalysis and optoelectronics.

Graphical abstract: Sacrificial polymer thin-film template with tunability to construct high-density Au nanoparticle arrays and their refractive index sensing

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C3CP52816B
Article type
Paper
Submitted
05 Jul 2013
Accepted
18 Jul 2013
First published
19 Jul 2013

Phys. Chem. Chem. Phys., 2013,15, 15499-15507

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Sacrificial polymer thin-film template with tunability to construct high-density Au nanoparticle arrays and their refractive index sensing

W. Yuan, Z. Lu, H. Wang and C. M. Li, Phys. Chem. Chem. Phys., 2013, 15, 15499 DOI: 10.1039/C3CP52816B

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