The role of semiconducting hosts on photoluminescence efficiency of Eu-complex
IR@CGCRI: CSIR-Central Glass and Ceramic Research Institute, Kolkata
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Title |
The role of semiconducting hosts on photoluminescence efficiency of Eu-complex
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Creator |
Saha Chowdhury, Paramita
Saha, S Patra, Amitava |
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Subject |
Processing Science
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Description |
The energy transfer from the semiconducting hosts, poly (N-vinylcarbazole) (PVK), 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole (PBD) and a mixture of PVK and PBD blend matrix to Eu-Complex [Eu (TTA)(3)(Phen)] is investigated by steady state and time resolved photoluminescence spectroscopy. The emission intensity of the peak at 612 nm (D-5(0) -> F-7(2)) of Eu-ions and the photoluminescence efficiency are found to be sensitive to the nature of hosts. We found that the luminescence lifetimes of D-5(0) -> F-7(2) transition (612 nm) of Eu-ions are 580, 634 and 427 mu s for Eu-complex (0.11 wt%) doped PVK:PBD, PBD and PVK matrix, respectively. The analysis suggests that the energy transfer from PBD to europium complex is most efficient than PVK and PVK:PBD matrix. (c) 2005 Elsevier B.V. All rights reserved.
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Publisher |
Elsevier
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Date |
2005-04-12
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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Identifier |
http://cgcri.csircentral.net/870/1/paramita'05.pdf
Saha Chowdhury, Paramita and Saha, S and Patra, Amitava (2005) The role of semiconducting hosts on photoluminescence efficiency of Eu-complex. Chemical Physics Letters, 405 (4-6). pp. 393-397. ISSN 0009-2614 |
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Relation |
http://cgcri.csircentral.net/870/
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