Improved ferroelectric and photoluminescence properties in Pr3+ substituted Na0.5Bi0.5TiO3 synthesized using hydrothermal route

Goutham, Cilaveni and Kandula, Kumara Raja and Raavi, Sai Santosh Kumar and Asthana, Saket (2018) Improved ferroelectric and photoluminescence properties in Pr3+ substituted Na0.5Bi0.5TiO3 synthesized using hydrothermal route. AIP Conference Proceedings, 1942. 050130. ISSN 0094-243X

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Abstract

Nanocrystalline Pr3+ substituted NBT was synthesized using hydrothermal technique. Pr3+ modifies the ferroelectric NBT optically active and enhances the electrical properties with small structural changes. Aiming to the development of the bottom up optoelectronic devices this optimized nanoscale Na0.5Bi0.5-xPrxTiO3(x = 0.005) compound is synthesized hydrothermally. X-ray diffraction pattern shows that the system is stabilized in the Rhombohedral (space groupR3c) phase indicating the local strain inhomogeneity. PE loop shows that there is a decrement in the Ec value compared with compounds synthesized using conventional methods. The strong red emission assigned to prominent transition of the Pr3+ ions at 610nm was observed along with weak blue-green emission, indicating the potential use of the system. Energy transfer from host system to Pr3+ ions is responsible for red emission while blue green emission is due to quenching of 3P0 induced by intervalence charge transfer state.

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IITH Creators:
IITH CreatorsORCiD
Raavi, Sai Santosh Kumarhttp://orcid.org/0000-0002-2496-9233
Asthana, Sakethttp://orcid.org/0000-0002-6420-3304
Item Type: Article
Subjects: Physics
Divisions: Department of Physics
Depositing User: Team Library
Date Deposited: 17 Apr 2018 08:41
Last Modified: 17 Apr 2018 08:41
URI: http://raiith.iith.ac.in/id/eprint/3871
Publisher URL: http://doi.org/10.1063/1.5028761
OA policy: http://www.sherpa.ac.uk/romeo/issn/0094-243X/
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