Journal of Nanoparticle Research

, Volume 13, Issue 1, pp 1–13

General approach for fabricating nanoparticle arrays via patterned block copolymer nanoreactors

Research Paper

DOI: 10.1007/s11051-010-0059-3

Cite this article as:
Zu, X., Tu, W. & Deng, Y. J Nanopart Res (2011) 13: 1. doi:10.1007/s11051-010-0059-3

Abstract

A general approach to fabricate nanoparticle arrays of different kinds of materials is demonstrated in this paper. It was found that the center-to-center distance of the nanoparticles or the nanoclusters can be controlled using patterned block copolymer nanoreactors by adding polystyrene (PS) homopolymer to poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) diblock copolymer thin film. The number of the nanoparticles formed in the P4VP nanodomains can also be adjusted by addition of polystyrene (PS) homopolymer to poly(styrene-b-4-vinylpyridine) (PS-b-P4VP) diblock copolymer. In fabrication of Au nanoparticle arrays, HAuCl4 precursor was directly loaded into P4VP nanodomains of the diblock copolymer thin film by using a methanol solvent, which is a good solvent for P4VP but non-solvent for PS. The Au nanoparticle arrays were then obtained by reducing HAuCl4 with sodium citrate dihydrate, and then in situ transferred to silicon substrate by a two-step calcination method. ZnO and FexOy nanoparticle arrays were also synthesized by this approach with thermal decomposition and double decomposition reactions, respectively. Additionally, the advantage of using two-step calcination method over the air plasma method was discussed.

Keywords

Nanoparticle arrayBlock copolymerNanoreactorPatterningNanomanufacturing

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  1. 1.School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhouPeople’s Republic of China
  2. 2.School of Chemical and Biomolecular EngineeringGeorgia Institute of TechnologyAtlantaUSA