Can nano silicon be made optically active?

Cherian, Roby ; Nandy, Ashis Kumar ; Mahadevan, Priya ; Sarma, D. D. (2009) Can nano silicon be made optically active? Journal of Nanoscience and Nanotechnology, 9 (9). pp. 5561-5563. ISSN 1533-4880

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Official URL: http://www.ingentaconnect.com/content/asp/jnn/2009...

Related URL: http://dx.doi.org/10.1166/jnn.2009.1193

Abstract

There has been a lot of effort to make Silicon optically active. In this work we examine two methods of generating nanocrystals of Silicon from bulk fragments. This approach of ours allows us to play with the shape of the nanocrystals and therefore the degeneracy of the conduction band minimum. We go on to examine whether similar sized particles with different shapes have the same physical properties, and finally whether Silicon may be rendered optically active by this route. While we do find that similar sized particles with different shapes may have different band gaps, this route of modifying the degeneracy of the conduction band minimum makes nano Si slightly optically active.

Item Type:Article
Source:Copyright of this article belongs to American Scientific Publishers.
Keywords:Nanocrystals; Optical Properties
ID Code:102991
Deposited On:02 Feb 2018 03:56
Last Modified:02 Feb 2018 03:56

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