Manifestation of up-conversion in Yb3+/Tm3+ doped Li2O–Y2O3–SiO2 glass system

Babu, N.Ch. Ramesh; Rao, Ch. Srinivasa; Brik, M.G.; Raju, G. Naga; Kityk, I.V.; Veeraiah, N.

doi:10.1007/s00340-012-5247-7

Cited by 14 publications

(7 citation statements)

References 38 publications

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“…OA spectra of Li 2 O-HfO 2 -SiO 2 -Tm 2 O 3 glasses mixed with various contents of Au 2 O 3 were presented in Figure 6a,b. Spectra revealed the following bands due to the excitation of 3 H 6 ground state of Tm 3+ ions [23,24] : 3 H 5 and 3 H 4 : Among these, 3 H 6 ! 3 H 5 , 3 H 4 transitions were observed in the NIR region, whereas 3 H 6 !…”

Section: Resultsmentioning

confidence: 99%

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Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Devi

Sekhar

Kumar³

et al. 2023

Luminescence

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Li 2 O-HfO 2 -SiO 2 -Tm 2 O 3 :Au 2 O 3 glass samples (containing fixed content of Tm 2 O 3 and different concentration of Au 2 O 3 ) were prepared and characterized. Bearing of Au 0 metallic particles (MPs) on improving blue emission of thulium ions (Tm 3+ ) ions was explored. Optical absorption (OA) spectra exhibited multiple bands excited from 3 H 6 of Tm 3+ . Additionally, a broad peak in the wavelength range 500-600 nm due to surface plasmon resonance (SPR) of Au 0 MPs was noticed in the spectra. Photoluminescence (PL) spectra (of thulium free glasses) indicated a peak in the visible range due to sp ! d electronic transition of Au 0 MPs. Luminescence spectra of Tm 3+ and Au 2 O 3 co-doped glasses exhibited intense blue emission with substantial increase of intensity with increase of Au 2 O 3 content. Bearing of Au 0 MPs on the reinforcement of blue emission of Tm 3+ was discussed in detail with kinetic rate equations.

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Section: Resultsmentioning

confidence: 99%

“…OA spectra of Li 2 O‐HfO 2 ‐SiO 2 ‐Tm 2 O 3 glasses mixed with various contents of Au 2 O 3 were presented in Figure 6a,b. Spectra revealed the following bands due to the excitation of 3 H 6 ground state of Tm 3+ ions [ 23,24 ] :

^{3} H_{6} \to^{1} D_{2},^{1} G_{4},^{3} F_{2} goodbreak+^{3} F_{3},^{3} F_{4},^{3} H_{5} {and}^{3} H_{4} .

…”

Section: Resultsmentioning

confidence: 99%

Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Devi

Sekhar

Kumar³

et al. 2023

Luminescence

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“…Other radiative parameters viz. A T (the total emission probability), τ R (the radiative lifetime), β (fluorescence branching ratio) related with different transitions originated from 5 S 2 + 5 F 4 transition for Ho 3+ ions, from 4 S 3/2 for Er 3+ ions and from 1 G 4 level for Tm 3+ ions were computed with standard equations [47,48,66,67] and reported in 12. Additionally, the quantum yields (η) for 5 S 2 + 5 F 4 (Ho 3+ ), 4 S 3/2 (Er 3+ ions), and 1 G 4 (Tm 3+ ions) energy states were also included in the same Table . Notably, the values of η were found to be comparable with those observed in silicate and phosphate glass for these energy levels Equation (11).…”

Section: Resultsmentioning

confidence: 99%

“…The theoretical OS (f cal ) for electric dipole transitions of Ho 3+ and Er 3+ ions were evaluated using Judd-Ofelt (J-O) theory with the following equation [37,46,47]:…”

Section: Resultsmentioning

confidence: 99%

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Luminescence features of Ho³⁺, Er³⁺ and Tm³⁺ ions in red lead added non‐conventional antimony oxide glass system

Rao,

Sekhar,

Kumar

et al. 2023

Luminescence

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In this study, a glass system based on heavy metal oxides, namely Pb3O4‐Sb2O3‐SiO2, was prepared with Ho2O3, Er2O3, and Tm2O3 as dopants. The prepared glasses were characterized using XRD and IR studies. The luminescence efficiencies of the three rare earth ions viz., Ho3+, Er3+, and Tm3+ in the glass system were investigated, specifically focusing on green (Ho3+, Er3+), blue (Tm3+), and near‐infrared (NIR) emissions. The optical absorption (OA) and photoluminescence (PL) spectra of RE mixed glasses displayed strong bands in the visible and NIR regions, which were analyzed using J‐O theory. The J‐O coefficients (Ωλ) found to be in the order of Ω2 > Ω4 > Ω6 for all the three glasses. Notably, the Tm3+‐doped glasses exhibited the lowest Ω2 value, which was attributed to a larger degree of disorder in the glass network due to lower fractions of Sb5+ and Pb4+ ions that take part glass network forming. Such conclusion was arrived based on the IR studies. Furthermore, the quantitative analysis of PL spectra and decay curves indicated that SbHo and SbEr glasses are suitable for efficient green emission, while SbTm glass is a promising choice for blue laser emission.

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Synthesis and luminescence properties of RE3+ (RE = Yb, Er, Tm, Eu, Tb)-doped Sc2O3 microcrystals

Qin

Liu

et al. 2015

Journal of Alloys and Compounds

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Manifestation of up-conversion in Yb3+/Tm3+ doped Li2O–Y2O3–SiO2 glass system

Cited by 14 publications

References 38 publications

Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Luminescence features of Ho³⁺, Er³⁺ and Tm³⁺ ions in red lead added non‐conventional antimony oxide glass system

Synthesis and luminescence properties of RE3+ (RE = Yb, Er, Tm, Eu, Tb)-doped Sc2O3 microcrystals

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Manifestation of up-conversion in Yb3+/Tm3+ doped Li2O–Y2O3–SiO2 glass system

Cited by 14 publications

References 38 publications

Amplification of blue emission of Tm3+ ions in Li2O‐HfO2‐SiO2 glass system by means of Au0 metallic particles

Amplification of blue emission of Tm3+ ions in Li2O‐HfO2‐SiO2 glass system by means of Au0 metallic particles

Luminescence features of Ho3+, Er3+ and Tm3+ ions in red lead added non‐conventional antimony oxide glass system

Synthesis and luminescence properties of RE3+ (RE = Yb, Er, Tm, Eu, Tb)-doped Sc2O3 microcrystals

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Product

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Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Amplification of blue emission of Tm³⁺ ions in Li₂O‐HfO₂‐SiO₂ glass system by means of Au⁰ metallic particles

Luminescence features of Ho³⁺, Er³⁺ and Tm³⁺ ions in red lead added non‐conventional antimony oxide glass system