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Synthesis and Characterization of Gd Doped ZnO Nanocrystals

DSpace at IIT Bombay

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Title Synthesis and Characterization of Gd Doped ZnO Nanocrystals
 
Creator MITHAL, D
KUNDU, T
 
Subject ZnO nanocrystals
Gadolinium doped ZnO nanocrystals
Photoluminescence of semiconductors
QUANTUM DOTS
OPTICAL-PROPERTIES
 
Description Rare earth doped semiconductor nanocrystals are of great interest due to their applications in optoelectronic and display devices. By introducing the rare earth ions into semiconductor crystal at nano scale, the luminescence of semiconductor host crystal gets affected due to the interaction between these dopant ions and host crystal. Nanocrystals of zinc oxide with gadolinium doping were prepared by sol-gel method. Systematic structural studies on Gd3+ ion doped ZnO nanocrystals were carried out using X-ray diffraction, high resolution transmission electron microscopy. Steady state photoluminescence spectroscopy was also carried out to understand the excited state energy redistribution between the band to band transitions and the defect states (surface states) transitions. It was observed that by incorporation of Gd3+ ion into ZnO, the UV and visible emission of ZnO gets affected. Since luminescence of the host can be modified by incorporation of Gd3+ ions, display devices of required luminescence can be developed.
 
Publisher ASIAN JOURNAL OF CHEMISTRY
 
Date 2014-10-15T15:34:26Z
2014-10-15T15:34:26Z
2013
 
Type Article
 
Identifier ASIAN JOURNAL OF CHEMISTRY, 25S12-S16
http://dspace.library.iitb.ac.in/jspui/handle/100/15165
 
Language en