Sensitized Red Luminescence from Bi3+ co-doped Eu3+ : ZnO-B2O3 Glasses
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
View Archive InfoField | Value | |
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/
|
|