Influence of Yb3+/Ho3+codoping on optical and thermal properties of TeO2-ZnO glass.

IF 2.4 3区 化学 Q3 CHEMISTRY, ANALYTICAL Methods and Applications in Fluorescence Pub Date : 2024-06-05 DOI:10.1088/2050-6120/ad5075
Mohd Azam, Vineet Kumar Rai, Savidh Khan, K Singh
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Abstract

This paper reports the effect of incorporation of Yb3+ions on the frequency downconversion luminescence and thermal properties of triply ionised Ho3+doped zinc tellurite (TZ) glasses. The photoluminescence spectra of both the Ho3+/Yb3+doped and codoped glasses have been recorded and observed a green emission band corresponding to the5F4,5S25I8(∼550 nm) transition upon various excitations. In the downconversion (DC) emission process, the back energy transfer (BET) mechanism from Ho3+ions to Yb3+ions has also been explored. The colour emitted in the downconversion process is found to be non-tunable at different excitations. Thus, the Ho3+:TZ glass can be utilised for non-colour tunable optical devices under various UV excitations. Also the glass transition (Tg) and crystallisation (Tc) temperatures have been measured for both the doped and codoped glasses and found to be increased in the codoped glass. The singly Ho3+ions doped TZ glass shows better optical downconversion and glass forming ability.

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Yb3+/Ho3+掺杂对 TeO2-ZnO 玻璃光学和热学特性的影响。
本文报告了掺入 Yb3+ 离子对三电离掺杂 Ho3+ 的碲锌矿(TZ)玻璃的频率下变频发光和热特性的影响。我们记录了掺杂 Ho3+/Yb3+ 和共掺玻璃的光致发光光谱,并观察到在各种激发下出现了与 5F4、5S2→5I8(~550 nm)转变相对应的绿色发射带。在下转换(DC)发射过程中,还探索了从 Ho3+ 离子到 Yb3+ 离子的反向能量转移(BET)机制。研究发现,在不同的激发下,下变频过程中发射的颜色是不可调的。因此,Ho3+:TZ 玻璃可用于各种紫外线激发下的非颜色可调光学器件。此外,我们还测量了掺杂玻璃和共掺玻璃的玻璃转化温度(Tg)和结晶温度(Tc),发现共掺玻璃的温度有所提高。单掺杂 Ho3+ 离子的 TZ 玻璃显示出更好的光学下变频和玻璃成型能力。
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来源期刊
Methods and Applications in Fluorescence
Methods and Applications in Fluorescence CHEMISTRY, ANALYTICALCHEMISTRY, PHYSICAL&n-CHEMISTRY, PHYSICAL
CiteScore
6.20
自引率
3.10%
发文量
60
期刊介绍: Methods and Applications in Fluorescence focuses on new developments in fluorescence spectroscopy, imaging, microscopy, fluorescent probes, labels and (nano)materials. It will feature both methods and advanced (bio)applications and accepts original research articles, reviews and technical notes.
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