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Structural and optical properties of Dy3+-doped lithium borate glass

 
: Rimbach, A.C.; Steudel, F.; Ahrens, B.; Schweizer, S.

:

European journal of glass science and technology. B, Physics and chemistry of glasses 59 (2018), No.2, pp.93-96
ISSN: 1753-3570
ISSN: 1750-6689
ISSN: 0031-9090
ISSN: 1753-3562
English
Journal Article
Fraunhofer IMWS ()

Abstract
The ratio between the network modifier Li2O and the network former B2O3 has a significant influence on the structural and optical properties of Dy3+-doped lithium borate glass. Differential scanning calorimetry shows that upon increasing the modifier-to-former ratio (Li2O-to-B2O3) in favour of Li2O, the glass transition temperature increases up to a maximum value of 502°C for the 1:3 sample, while the crystallization temperature decreases linearly from 653 to 534°C. Raman spectroscopy confirms the highest network connectivity for the glass with a modifier-to-former ratio of 1:3. Under ultraviolet excitation, Dy3+ shows emission lines in the visible spectral range, the most intense ones at 484 and 575 nm. The absolute photoluminescence quantum efficiency is best for the glass with a modifier-to-former ratio of 1:6.

: http://publica.fraunhofer.de/documents/N-524802.html