Pisarska Joanna, Pisarski Wojciech A, Lisiecki Radosław, Ryba-Romanowski Witold
Institute of Chemistry, University of Silesia, Szkolna 9 Street, 40-007 Katowice, Poland.
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2 Street, 50-422 Wrocław, Poland.
Materials (Basel). 2020 Dec 30;14(1):121. doi: 10.3390/ma14010121.
In this work, spectroscopic properties of europium and erbium ions in heavy metal oxide glasses have been studied. The phonon energy of the glass host was determined based on Eu excitation spectra measurements. Near-IR emission spectra at 1550 nm related to I → I transition of erbium in heavy metal glasses were examined with special regards to luminescence bandwidth and measured lifetime. In particular, correlation between phonon energy and the measured lifetime I (Er) was proposed. The luminescence lifetime for the I upper laser state of erbium decreases with increasing phonon energy in glass matrices. Completely different results were obtained glass samples with europium ions, where the D lifetime increases with increasing phonon energy. Our investigations suggest that the values of measured D lifetime equal to radiative lifetimes for all heavy metal oxide glasses.
在这项工作中，研究了重金属氧化物玻璃中铕离子和铒离子的光谱特性。基于铕激发光谱测量确定了玻璃基质的声子能量。特别针对发光带宽和测量寿命，研究了重金属玻璃中与铒的I→I跃迁相关的1550nm近红外发射光谱。特别提出了声子能量与测量寿命I(Er)之间的相关性。在玻璃基质中，铒的I上激光态的发光寿命随着声子能量的增加而降低。对于含有铕离子的玻璃样品，得到了完全不同的结果，其中D寿命随着声子能量的增加而增加。我们的研究表明，对于所有重金属氧化物玻璃，测量的D寿命值等于辐射寿命。
