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The Effect of Different Molar Ratios of CeO2 on Photoluminescence Properties of CeO2/TiO2 Nanoparticles

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Title The Effect of Different Molar Ratios of CeO2 on Photoluminescence Properties of CeO2/TiO2 Nanoparticles
 
Creator Dokan, Fatma Kiliç
Kuru, Mehmet
Torun, Handan Özlü
Öztürk, Esra
 
Subject Photoluminescence properties
CeO2/TiO2
Nanoparticle
 
Description 190-197
The CeO2-TiO2 nanoparticles were prepared by a combination of hydrothermal and sol-gel preparation methods. The bond
structures and crystal properties of the obtained materials were featured with X-ray diffraction, FTIR, Raman, and Bet analysis;
surface morphologies were examined with the help of FESEM and STEM. And finally, the PL properties of the synthesized
samples were also examined in this study. The excitation and emission spectra of 0.1 mol% and 0.25 mol% CeO2 doped TiO2
phosphors consist of broad bands in the UV (200–300 nm) region with maxima at 254 nm. The excitation band at 254 nm is
defined as the charge transfer band (CTB). In the emission spectra, a broadband located from 400 to 700 nm is related to the
5d-4f (5d1→4f1) transition of Ce3+ in TiO2. According to the PL result, the 5d–4f transition of Ce3+ is heavily dependent on the
concentration of Ce3+ in the host crystal TiO2.
 
Date 2023-03-22T10:10:16Z
2023-03-22T10:10:16Z
2023-03
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/61575
https://doi.org/10.56042/ijpap.v61i3.71091
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.61(03) [March 2023]