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首页> 外文期刊>Journal of Materials Science. Materials in Electronics >Thermal stability and concentration effect in erbium-doped lead fluoroborate glasses
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Thermal stability and concentration effect in erbium-doped lead fluoroborate glasses

机译：掺氟硼酸铅玻璃的热稳定性和浓度效应

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摘要

Thermal and optical properties of lead fluoroborate glasses containing Er ions have been investigated. Glass properties of multicomponent oxyfluoride systems have been examined in two ways: with various (a) activator (Er ions) and (b) PbF2 concentrations. Thermal stability parameter Delta T linearly decreases from 162 degrees C to 138 degrees C, when PbF2 content increases from 9 to 72 wt% in glass composition. Non-linear dependence of Delta T stability parameter is observed as a function of activator concentration. The optimal highest Values of Delta T factor are obtained for Er concentration in range of 0.5 divided by 1.5 wt%. Quite intense and long-lived near-infrared photoluminescence of erbium ions at 1.55 mu m related to the main I-4(13/2)-I-4(15/2) laser transition has been detected in lead fluoroborate glass. Photoluminescence intensity and the I-4(13/2) lifetime considerably increase with increasing of PbF2 concentration. The opposite effect is observed with increasing of activator concentration, which is due to the luminescence quenching. Thus, the I-4(13/2) lifetime decreases and this behavior is consistent with non-radiative processes related to the Er-Er interaction increasing.
机译：已经研究了含Er离子的氟硼酸铅玻璃的热学性质和光学性质。已通过两种方式检查了多组分氟氧化物体系的玻璃性能：各种（a）活化剂（Er离子）和（b）PbF2浓度。当玻璃组成中PbF2的含量从9 wt％增加到72 wt％时，热稳定性参数Delta T从162摄氏度线性降低到138摄氏度。观察到ΔT稳定性参数的非线性依赖性是活化剂浓度的函数。对于Er浓度在0.5除以1.5 wt％的范围内，可获得ΔT因子的最佳最大值。在氟硼酸铅玻璃中已检测到与主要I-4（13/2）-I-4（15/2）激光跃迁有关的1.55μm的intense离子具有很强的强度和长寿命的近红外光致发光。随着PbF2浓度的增加，光致发光强度和I-4（13/2）寿命显着增加。随着活化剂浓度的增加，观察到相反的效果，这是由于发光猝灭。因此，I-4（13/2）寿命减少，并且此行为与与Er-Er相互作用增加有关的非辐射过程一致。

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