...
首页> 外文期刊>Optical Materials >Photoluminescence and thermally stimulated luminescence properties of Pr~(3+)-doped zinc sodium bismuth borate glasses
【24h】

Photoluminescence and thermally stimulated luminescence properties of Pr~(3+)-doped zinc sodium bismuth borate glasses

机译:掺Pr〜(3+)硼酸锌钠铋硼酸盐玻璃的光致发光和热激发发光性质

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       

摘要

Present study reports the effects of varying concentrations of Pr3+ ions on the optical properties of 10ZnO-5Na(2)CO(3)-10Ni(2)O(3)-75-xB(2)O(3)-xP(6)O(11) (x = 0.1-1 mol%) glasses prepared through melt- quench technique with an aim to achieve suitable optical gain medium for optoelectronic applications. Minimal changes in the measured density, X-Ray diffractogram and Fourier Transform Infrared spectra of the prepared samples confirmed the stability of the glass structure even after 1 mol% doping of the Pr3+. Bonding nature of Pr3+ ion with surrounding ligands and Judd-Oflet (J-O) intensity parameters of the glasses were determined using optical absorption spectra. The photoemission spectra exhibited reddish orange emission around 605 nm at 445 nm excitation. The calculated color chromaticity with x = 0.5847, y = 0.3701 coordinates for 0.1 mol% of the Pr3+ in the glasses suggests suitable optical gain medium for reddish orange LED applications. Metastable lifetimes of the Pr3+ ion were found-out by exponential fitting to the decay profiles. Lasing parameters of the glasses such as branching ratio, radiative transition probability and stimulated emission cross-section of D-1(2)-> H-3(4) transition were calculated using JO parameters indicating 0.1 mol% Pr3+-doped glasses suitable for 605 rim solid-state laser applications. The mechanism of energy transfer is determined by applying the Inokuti-Hirayama model and was found to involve a dipole-dipole type of interactions. Thermoluminescence (TL) glow curves of the gamma-ray treated 0.1 mol% Pr3+-doped zinc sodium bismuth borate glasses were de-convoluted using Computerized Glow Curve Deconvolution method to evaluate the energy storage properties of the glasses. The intensity variation of the 11, component peak (CP2) at 500 K showed linear behavior up to 3 kG y suggesting application in high dose measurements.
机译:本研究报告了不同浓度的Pr3 +离子对10ZnO-5Na(2)CO(3)-10Ni(2)O(3)-75-xB(2)O(3)-xP(6)光学性质的影响通过熔融淬火技术制备的O(11)(x = 0.1-1 mol%)玻璃,目的是为光电应用获得合适的光学增益介质。所制备样品的测量密度,X射线衍射图和傅立叶变换红外光谱的最小变化证实了玻璃结构的稳定性,即使在1 mol%的Pr3 +掺杂后也是如此。使用光学吸收光谱确定Pr3 +离子与周围配体的键合性质以及玻璃的Judd-Oflet(J-O)强度参数。该光发射光谱在445 nm激发下在605 nm附近显示红橙色发射。对于玻璃中0.1 mol%的Pr3 +,x = 0.5847,y = 0.3701的色度计算值表明,该色度介质适合用于红橙色LED应用。通过对衰变曲线进行指数拟合发现了Pr3 +离子的亚稳态寿命。使用JO参数来计算玻璃的激光参数,例如D-1(2)-> H-3(4)跃迁的分支比,辐射跃迁概率和受激发射截面,这些参数表明适用于掺入0.1 mol%Pr3 +的玻璃适合605边缘固态激光器的应用。能量转移的机制是通过应用Inokuti-Hirayama模型确定的,并且发现其涉及偶极-偶极子类型的相互作用。使用计算机辉光曲线解卷积方法对经γ射线处理的0.1 mol%掺Pr3 +的锌钠铋硼酸盐玻璃的热致发光(TL)辉光曲线进行去卷积,以评估玻璃的储能性能。 500 K处的11个组分峰(CP2)的强度变化显示出高达3 kG y的线性行为,表明在高剂量测量中应用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号