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Sensitized Red Luminescence from Bi3+ co-doped Eu3+ : ZnO-B2O3 Glasses

IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata

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Title Sensitized Red Luminescence from Bi3+ co-doped Eu3+ : ZnO-B2O3 Glasses
 
Creator Sontakke, Atul D
Tarafder, Anal
Biswas, Kaushik
Annapurna, K
 
Subject Glass
 
Description Photoluminescence properties of Bi3+ co-doped Eu3+ containing zinc borate glasses have been investigated and the results are reported here. Bright red emission due to a dominant electric dipole transition 5D0 ® 7F2 of the Eu3+ ions has been observed from these glasses. The nature of Stark components from the measured fluorescence transitions of Eu3+ ions reveal that the rare earth ions could take the lattice sites of Cs or lower point symmetry in the zinc borate glass hosts. The significant enhancement of Eu3+ emission intensity by 346 nm excitation (1S0 ® 3P1 of Bi3+ ions) elucidates the sensitization effect of co-dopant. The energy transfer mechanism between sensitizer (Bi3+) and activator (Eu3+) ions has been explained.
 
Publisher Elsevier
 
Date 2009-11
 
Type Article
NonPeerReviewed
 
Format application/pdf
 
Identifier http://cgcri.csircentral.net/2/1/KB_Bi%2DEu_dope_Zinc%2DBorate_glassPhysBConde[1].pdf
Sontakke, Atul D and Tarafder, Anal and Biswas, Kaushik and Annapurna, K (2009) Sensitized Red Luminescence from Bi3+ co-doped Eu3+ : ZnO-B2O3 Glasses. Physica B-Condensed Matter, 404 (20). pp. 3525-3529. ISSN 0921-4526 (Submitted)
 
Relation http://cgcri.csircentral.net/2/