Luminescence in Mn-doped CdS nanocrystals

Nag, Angshuman and Sapra, Sameer and Gupta, Subhra Sen and Prakash, Ankita and Ghangrekar, Ajit and Periasamy, N and Sarma, DD (2008) Luminescence in Mn-doped CdS nanocrystals. In: Bulletin of Materials Science, 31 (3). pp. 561-568.

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Abstract

We have synthesized Mn-doped CdS nanocrystals (NCs) with size ranging from 1.8-3 nm. Photoluminescence (PL) spectra of the doped NCs differ from that of the undoped NCs with an additional peak due to Mn d-d transitions. Electron paramagnetic resonance spectra along with X-ray absorption spectroscopy and PL spectra confirm the incorporation of Mn in the CdS lattice. The fact that emissions from surface states and the Mn d levels occur at two different energies, allowed us to study the PL lifetime decay behaviour of both kinds of emissions.

Item Type:	Journal Article
Publication:	Bulletin of Materials Science
Publisher:	Indian Academy of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Keywords:	Luminescence;doping;semiconductor nanocrystals.
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	13 Oct 2008 05:15
Last Modified:	19 Sep 2010 04:50
URI:	http://eprints.iisc.ac.in/id/eprint/16024

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