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Microplasma-Induce Liquid Chemistry for Stabilizing of Silicon Nanocrystals Optical Properties in Water

Mitra, S, Svrcek, V, Mariotti, D, Velusamy, T, Matsubara, K and Kondo, M (2014) Microplasma-Induce Liquid Chemistry for Stabilizing of Silicon Nanocrystals Optical Properties in Water. Plasma Processes and Polymers, 11 (2). pp. 158-163. [Journal article]

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URL: http://dx.doi.org/10.1002/ppap.201300097

DOI: 10.1002/ppap.201300097

Abstract

In this report, we demonstrate stabilization of photoluminescence (PL) properties of environmentally and biologically friendly silicon nanocrystals (SiNCs) in water through atmospheric pressure radio-frequency (RF) microplasma processing at room temperature. The PL of the SiNCs is enhanced after microplasma processing, which involves three-dimensional engineering of SiNCs directly in water avoiding degradation by surface functionalization. Moreover, we compare the RF microplasma process with direct-current microplasma processing, whereby the two approaches lead to very similar SiNCs optical properties and surface characteristics. The induced unique chemistry and SiNCs stability in water have wide implications for the SiNCs processability and applications in energy devices, biology and medicine.

Item Type:Journal article
Keywords:microplasma processing, silicon nanocrystals, surface chemistry
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:28704
Deposited By: Professor Davide Mariotti
Deposited On:27 Feb 2014 11:42
Last Modified:27 Feb 2014 11:42

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