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International Journal of Recent Trends in Science and Technology, ISSN 2277-2812 E-ISSN: 2249-8109

Volume 12, Issue 2, September 2014 pp 273-275

Research Article

Preparation, characterization and luminescent properties of LiBO₂:Tb³+ green emitting phosphor for solid state lighting

V R Panse¹, N S Kokode^2*, S J Dhoble³

¹Department of Applied Physics, NCET, Gadchiroli-442605, Maharashtra, INDIA.

²N. H. College,  Bramhapuri, Gondwana University, Gadchiroli,-441206, Maharashtra, INDIA.

³Department of Physics, RTM Nagpur University, Nagpur -440033, Maharashtra, INDIA.

Abstract

Introduction: In our work we report the preparation, characterization and luminescence mechanism of Tb³⁺ activated LiBO₂ green emitting phosphor for solids state lighting. Tb³⁺ has been extensively used as green-emitting activator for luminescent phosphor materials; the excitation and emission spectra indicate that the prepared lithium borate based phosphor can be effectively excited by 353 nm, to showing a bright green emission at 545 nm corresponding to the f→f transition of Tb³⁺ ions. All the characteristics indicated that LiBO₂:Tb³⁺ is an excellent phosphor for solid state lighting.