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Spectral and thermal analysis of Sm³⁺ and Dy³⁺: B₂O₃-BaO-LiF/AlF₃ glasses

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Title Spectral and thermal analysis of Sm³⁺ and Dy³⁺: B₂O₃-BaO-LiF/AlF₃ glasses
 
Creator Rudramadevi, B H
Buddhudu, S
 
Subject RE³⁺ glasses
Spectral analysis
Thermal analysis
 
Description 825-832
Optical and thermal properties of Sm³⁺ and Dy³⁺: B₂O₃-BaO-LiF/AlF₃ glasses have been studied. These optical materials have been characterized from the measurement of their XRD, FTIR, absorption, excitation, emission spectra and DTA-TG profiles. From the recorded photoluminescence spectra of samarium (Sm³⁺) glasses, four emission transitions; ⁴G₅/₂ → ⁶H₅/₂ (565 nm), ⁴G₅/₂ → ⁶H₇/2 (601 nm), ⁴G₅/₂ → ⁶H₉/₂ (648 nm) and ⁴G₅/₂ → 6H₁₁/2 (710 nm) with λexci = 401 nm (⁶H₅/₂ → ⁴F₇/₂) have been observed. In the case of dysprosium (Dy³⁺) glasses, three emission transitions; ⁴F₉/₂ → ⁶H₁₅/₂ (485 nm),
⁴F₉/₂ → ⁶H₁₃/₂ (578 nm) and ⁴F₉/₂ → ⁶H₁₁/₂ (667 nm) with lexci = 448 nm (⁶H₁₅/₂ → ⁴I₁₅/₂) have been observed. For the prominent emissions only, the decay curves have been recorded in order to evaluate their lifetimes. The materials nature, structural trends and thermal properties have also been analyzed through the measurement of their XRD, FTIR and
TG-DTA profiles.
 
Date 2009-02-10T05:07:12Z
2009-02-10T05:07:12Z
2008-12
 
Type Article
 
Identifier 0019-5596
http://hdl.handle.net/123456789/3022
 
Language en_US
 
Publisher CSIR
 
Source IJPAP Vol.46(12) [December 2008]