Speaker
Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)
yes
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Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?
yes
Abstract content <br> (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>
Cerium co-doped ZrO2: Eu3+ nanorods was synthesized by a simple chemical dehydration route and their structural, morphological and optical properties were investigated. Structural studies revealed mixed-phases of monoclinic and tetragonal Bravis lattices. Nanorods of different dimensions were observed on the scanned images. Excitation and absorption spectra revealed the dominance of the Eu3+ - O2- charge transfer states band over the intraconfigurational lines of the activator ion. A broad emission band with center maximum at 465 nm is attributed to both Ce3+ ion and the host band emissions. Electronic transitions in the range 500 nm to 650 nm are assigned to the Eu3+ ion. No significant energy transfer was observed because concentration quenching process dominated the energy transfer process. The internal quantum efficiency decreased with increasing Ce3+ concentration.
Main supervisor (name and email)<br>and his / her institution
Prof. Dejene B.F.; DejeneBF@ufs.ac.za; University of The Free State Qwaqwa Campus Phuthaditjhaba,South Africa
