Luminescence features of Ho 3+ , Er 3+ and Tm 3+ ions in red lead added non-conventional antimony oxide glass system.

Autor: Rao YD; Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, India., Sekhar AV; Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, India.; Department of Nanotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, India., Kumar VR; Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, India., Kumar VR; Andhra Loyola Institute of Engineering and Technology, Vijayawada, India., Venkatramaiah N; Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, India., Purnachand N; School of Electronics Engineering, VIT-AP University, Inavolu, AP, India., Gandhi Y; Department of Physics, Kakani Venkata Ratnam College, Nandigama, India., Veeraiah N; Department of Physics, Acharya Nagarjuna University, Nagarjuna Nagar, India.; Department of Physics, Andhra Loyola College, Vijayawada, AP, India.
Jazyk: angličtina
Zdroj: Luminescence : the journal of biological and chemical luminescence [Luminescence] 2024 Jan; Vol. 39 (1), pp. e4603. Date of Electronic Publication: 2023 Nov 02.
DOI: 10.1002/bio.4603
Abstrakt: In this study, a glass system based on heavy metal oxides, namely Pb 3 O 4 -Sb 2 O 3 -SiO 2 , was prepared with Ho 2 O 3 , Er 2 O 3 , and Tm 2 O 3 as dopants. The prepared glass were characterized using X-ray diffraction (XRD) and infrared (IR) studies. The luminescence efficiencies of the three rare earth ions viz., Ho 3+ , Er 3+ , and Tm 3+ in the glass system were investigated, specifically focusing on green (Ho 3+ , Er 3+ ), blue (Tm 3+ ), and near-infrared (NIR) emissions. The optical absorption (OA) and photoluminescence (PL) spectra of RE mixed glass displayed strong bands in the visible and NIR regions, which were analyzed using the Judd-Ofelt (J-O) theory. The J-O coefficients (Ω λ ) were found to be in the order of Ω 2  > Ω 4  > Ω 6 for all the three glass. Notably, the Tm 3+ -doped glass exhibited the lowest Ω 2 value, which was attributed to a larger degree of disorder in the glass network due to lower fractions of Sb 5+ and Pb 4+ ions that take part in the glass network forming. This conclusion was arrived based on the IR studies. Furthermore, the quantitative analysis of PL spectra and decay curves indicated that SbHo and SbEr glass were suitable for efficient green emission, while SbTm glass is a promising choice for blue laser emission.
(© 2023 John Wiley & Sons Ltd.)
Databáze: MEDLINE
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