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UV-assisted production of ferromagnetic graphitic quantum dots from graphite

DSpace at IIT Bombay

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Title UV-assisted production of ferromagnetic graphitic quantum dots from graphite
 
Creator SWAIN, AK
LI, D
BAHADUR, D
 
Subject GRAPHENE NANORIBBONS
MAGNETIC-PROPERTIES
POINT-DEFECTS
CARBON
SHEETS
OXIDE
CONVERSION
CHEMISTRY
OXIDATION
CUT
 
Description Graphitic quantum dots (GQDs) are synthesized from natural graphite powder. This process involves a few steps such as oxidation, reduction and filtration to obtain the precursor to prepare GQDs. Finally, a combination of UV irradiation and sonication is used to produce GQDs. These quantum dots are further investigated by various characterization techniques. They exhibit blue luminescence and ferromagnetic behavior. The ferromagnetic nature of the GQDs is discussed and explained. Based on the experimental data obtained and theoretical models available in literature, a possible mechanism for the formation of GQDs is proposed. Their properties, including the production yield can be tuned by simply changing the synthesis parameters. (c) 2013 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2014-10-14T17:14:55Z
2014-10-14T17:14:55Z
2013
 
Type Article
 
Identifier CARBON, 57346-356
http://dx.doi.org/10.1016/j.carbon.2013.01.082
http://dspace.library.iitb.ac.in/jspui/handle/100/14542
 
Language en