Physics of the Solid State
Volumes and Issues
Orthoborate LiSrY2(BO3)3 Host with Low Concentration Quenching
Tawalare P. K.1, Fugare B. Y.1, Nafdey R. A.2, Sharma K.3, Moharil S. V.4
1Department of Physics, Jagadamba Mahavidyalaya, Achalpur City, India
2Shri Ramdeobaba College of Engineering and Management, Nagpur, India
3Physics Department, Jhulelal Institute of Technology, Nagpur, India
4RashtrasantTukadoji Maharaj Nagpur University, Nagpur, India
Email: aounyacine07@gmail.com

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LiSrY2(BO3)3 is a recently explored host for observing lanthanide luminescence. This compound synthesized and activated with Tb3+/Gd3+ is described. Trivalent activators Tb3+ and Gd3+ occupy yttrium sites. Intense characteristic emission is observed for both these activators. In case of Gd3+, both excitation and emission lines arise in f-f transitions. Photo luminescence emission is obtained in UV region. In case of Tb3+, mild concentration quenching was observed above 10%. Prominent excitation of Tb3+ is in form of a band arising in f-d type transition while emission comes from f-f transitions. Emission lifetimes are of the order of milliseconds, typical of forbidden f-f transitions. Keywords: photoluminescence; borate; Gd3+; Tb3+. DOI: 10.61011/PSS.2023.08.56581.92
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