Effect of structural properties on the vibrational and photoluminescence behavior of Ba0.97Bi0.02Ti0.9Zr0.05Nb0.04O3 ceramics


Raddaoui Z. El Kossi S. Trukhanov A.V. Kozlovskiy A.L. Zdorovets M.V. Dhahri J.
March 2021Springer

Journal of Materials Science: Materials in Electronics
2021#32Issue 67366 - 7376 pp.

In this paper, we have reported the vibrational and photoluminescence properties of Ba0.97Bi0.02Ti0.9Zr0.05Nb0.04O3 (BBTZN) polycrystalline perovskite produced via the Molten Salt reaction. The Raman spectrum indicated the chemical disorder in the BBTZN sample, at room temperature. The values optical gap and Urbach energy were evaluated on the basis of the UV–Vis–NIR absorption spectrum. Furthermore, BBTZN compound emitted two peaks at near-infrared light (950 nm and 1040 nm) with 514.5 nm light excitation related to the luminescence of bismuth lower valence states: Bi2+ (2P1/2–X2) and Bi+ (3P0–3P1). The measured activation energy from PL spectra proved that our compound possesses a good thermostability in the temperature range from 10 to 300 K. All the analytical results prove that BBTZN polycrystalline could have some significant potential applications in white luminescent devices.



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Laboratoire de la Matière Condensée et des Nanosciences, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l’environnement, Monastir, 5019, Tunisia
Scientific-Practical Materials Research Centre of NAS of Belarus, P. Brovki str., 19, Minsk, 220072, Belarus
South Ural State University, Lenin av., 76, Chelyabinsk, 454080, Russian Federation
National University of Science and Technology MISiS, Leninsky av., 4, Moscow, 119049, Russian Federation
The Institute of Nuclear Physics, Almaty, 050032, Kazakhstan
L.N. Gumilyov, Eurasian National University, Nur-Sultan, 010008, Kazakhstan
Ural Federal University named after the First President of Russia B.N. Yeltsin, Yekaterinburg, 620075, Russian Federation

Laboratoire de la Matière Condensée et des Nanosciences
Scientific-Practical Materials Research Centre of NAS of Belarus
South Ural State University
National University of Science and Technology MISiS
The Institute of Nuclear Physics
L.N. Gumilyov
Ural Federal University named after the First President of Russia B.N. Yeltsin

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