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Temperature-dependent luminescence of Tb3+ and Eu3+ single-doped glasses for LED applications

: Loos, S.; Steudel, F.; Ahrens, B.; Leonard, R.L.; Johnson, J.A.; Schweizer, S.


Physica status solidi. C 12 (2015), Nr.12, S.1359-1364
ISSN: 1610-1634
ISSN: 1610-1642
ISSN: 1862-6351
European Materials Research Society (Spring Meeting) <2015, Lille>
Symposium H "Nanoparticles in Dielectric Matrix for Electronics and Optics - From the Fabrication to the Devices" <2015, Lille>
Zeitschriftenaufsatz, Konferenzbeitrag
Fraunhofer IWM ()

Tb3+ and Eu3+ single-doped barium borate glass and ZBLAN glass are investigated for their photoluminescence (PL) and absolute PL quantum efficiency. In addition, both glass systems are characterized with respect to their color stability in the temperature range from 25 degrees C to 400 degrees C. The Tb3+ doped glass shows high color stability over the entire temperature range investigated, whereas the Eu3+ doped glass changes its color appearance with increasing temperature: Eu3+ in ZBLAN glass changes its color appearance from the orange to the red spectral range, whereas the color appearance in borate glass is shifted from the red to the orange-red spectral range.