Synthesis and characterization of mn-doped zno nanocrystals

Viswanatha, Ranjani ; Sapra, Sameer ; Gupta, Subhra Sen ; Satpati, B. ; Satyam, P. V. ; Dev, B. N. ; Sarma, D. D. (2004) Synthesis and characterization of mn-doped zno nanocrystals Journal of Physical Chemistry B, 108 (20). pp. 6303-6310. ISSN 1089-5647

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We report the synthesis and characterization of several sizes of Mn-doped ZnO nanocrystals, both in the free-standing and the capped particle forms. The sizes of these nanocrystals could be controlled by capping them with polyvinylpyrollidone under different synthesis conditions and were estimated by X-ray diffraction and transmission electron microscopy. The absorption properties of PVP-capped Mn-doped ZnO exhibit an interesting variation of the band gap with the concentration of Mn. Fluorescence emission, electron paramagnetic resonance, and X-ray absorption spectroscopy provide evidence for the presence of Mn in the interior as well as on the surface of the nanocrystals.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:10018
Deposited On:02 Nov 2010 10:07
Last Modified:16 Jul 2012 07:14

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