掺Pr/Ho碲酸盐玻璃的增强发射及其应用

Enhanced Emission of Tellurite Glass Doped with Pr/Ho and Their Applications.

作者信息

Burtan-Gwizdala Bozena, Reben Manuela, Cisowski Jan, Lisiecki Radosław, Jarząbek Bożena, Alshehri Ali, Hussein Khalid I, Yousef El Sayed

机构信息

Institute of Physics, Cracow University of Technology, ul. Podchorazych 1, 30-084 Cracow, Poland.

Faculty of Materials Science and Ceramics, AGH-University of Science and Technology, al. Mickiewicza 30, 30-059 Cracow, Poland.

出版信息

Materials (Basel). 2023 Jan 18;16(3):925. doi: 10.3390/ma16030925.

DOI:10.3390/ma16030925

PMID:36769932

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9918300/

Abstract

The shielding and spectroscopic properties of Pr and Pr/Ho-codoped tellurite glass were investigated. The intensity parameters (Ω2 = 3.24-, Ω4 = 1.64-, Ω6 = 1.10 × 10 cm) as well as the radiative lifetimes of F + S and I excited states of Ho ions were equal to 301 μs and 3.0 μs, respectively. The former value appears to be much higher than that obtained from the lifetime measurement, indicating the presence of various energy transfer processes. The NIR spectrum of Pr/Ho-co-doped tellurite glass is dominated by strong Ho: I emission at around 1200 nm, being the result of the energy transfer from Pr to Ho ions. The shielding effectiveness of the prepared glasses showed good performance against high-energy photons. These findings suggest that the prepared glasses could be used in laser technology such as photodynamic therapy (PDT) treatment procedures and as shielding for radiation protection.

摘要

研究了Pr和Pr/Ho共掺杂碲酸盐玻璃的屏蔽和光谱性质。Ho离子的强度参数（Ω2 = 3.24 - 、Ω4 = 1.64 - 、Ω6 = 1.10×10 cm）以及F + S和I激发态的辐射寿命分别为301 μs和3.0 μs。前一个值似乎远高于寿命测量得到的值，表明存在各种能量转移过程。Pr/Ho共掺杂碲酸盐玻璃的近红外光谱以1200 nm左右强烈的Ho: I发射为主，这是能量从Pr转移到Ho离子的结果。所制备玻璃的屏蔽效能对高能光子表现出良好的性能。这些发现表明，所制备的玻璃可用于激光技术，如光动力疗法（PDT）治疗程序以及作为辐射防护的屏蔽材料。