najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМОnajo-1375Research ArticlePAPERS, PRESENTED AT MAM-12PAPERS, PRESENTED AT MAM-12Photoluminescence in Fe3+ ion doped barium titanate nanoparticlesBarikP.

Department of Physics, Santiniketan-731235, W.B.

pbarik_mid1983@yahoo.co.inKunduT. K.

Department of Physics, Santiniketan-731235, W.B.

tapaskumar.kundu@visva-bharati.ac.inVisva-Bharati UniversityIndia20132208202542269275Copyright © Barik P., Kundu T.K., 20252025Barik P., Kundu T.K.Barik P., Kundu T.K.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1375

Fe3+ ion doped barium titanate (BT) nanopowders were synthesized by the sol gel route. The average size of tetragonal bariun titanate (t-BT) powders lies in the range 16–40 nm. The specimens show ultraviolet (UV) emission (peak at 376 nm) along with emission in violet, blue, green and yellow color. The blue band (peak at 452 nm) is seen to grow significantly with annealing temperature. This band arises due to Ti3+ defects which are stabilized by Fe3+ ions in BT specimens. The samples show two distinct Electron Paramagnetic Resonance (EPR) bands of g-value around 4.11 and 1.98, which originated from Fe3+ ions and Ti3+ defects respectively. A correlation between the photoluminescence (PL) and EPR band intensity, grown from same species, was found.

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The authors declare that there are no conflicts of interest present.