Influence of $$\text {Er}^{3+}$$ on structural and optical properties of borophosphate glasses

Singh, Harpreet; Bhatia, Vijeta; Kumar, Dinesh; Singh, Tajinder; Singh, Devinder; Singh, S. P.

doi:10.1007/s00339-022-05530-z

Cited by 10 publications

(4 citation statements)

References 56 publications

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“…As the spectra show no sharp peaks, it confirmed the glassy nature of the prepared samples. Nevertheless, in all samples, there is a noticeable small hump, which aligns with findings from our previous research [29,30,31]. The significance of this hump lies in the existence of minor crystalline domains within the 25 • -30 • range in the glass cooling process during melt quenching.…”

Section: Sample Preparation and Experimental Techniquessupporting

confidence: 90%

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Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Singh,

Singh

2024

Preprint

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To investigate the role of PbO as a former or a modifier and effect of its compositional variation on the physical, structural and optical properties, lithium lead borophosphate glasses were synthesized by melt quenching technique. For physical properties of the prepared glasses, density was measured by the Archimedes principle and density showed an increasing trend with increasing concentration of lead oxide. The structural analysis were performed through X-ray diffraction and Fourier transform infrared spectroscopy. Structural units due to PbO, P2 O5 and B2O3 were identified. Ultraviolet-visible absorption spec-troscopy was performed for optical properties and increase in the indirect band gap from 4.80 eV to 4.90 eV was observed. One glass sample was chosen for doping of erbium, neodymium, thulium and ytterbium, for study of their up-conversion properties. All the prepared samples were excited at 980 nm and ytterbium being a sensitizer helps in up-converting infrared light to visible light. As up-conversion is a host dependent process, up-1 conversion results suggested that the rare earth doped lithium lead borophosphate glasses are great host for up-conversion and these glasses can find applications in display devices and lasers.

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Section: Sample Preparation and Experimental Techniquessupporting

confidence: 90%

“…All the studies were conducted at room temperature. The formulae and necessary details of calculation of physical, structural and optical parameters have been explained in our previous studies [29,30,31]. The density and the physical parameters evaluated with its help are displayed in Table 2.…”

Section: Sample Preparation and Experimental Techniquesmentioning

confidence: 99%

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Singh,

Singh

2024

Preprint

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“…This displays that the site asymmetry around Er +3 ions is very high. The hypersensitive transition oscillator strength of 4 I15/2 to 2 H11/2 for the prepared glasses are higher those reported in [40,43,52,54,55]. The small value of ∆RMS means a perfect curve fitting among of fexp and fcal value.…”

Section: Judd-offelt Analysismentioning

confidence: 63%

“…As a result of the presence of an external electric field, a minor alteration in the distribution of charges occurs, whereby the positively charged particles orient themselves in the direction of the field, while the negatively charged particles align themselves in the opposite direction to the field. The polarized behavior of a glass sample can be described by parameters such as molar polarizability (αm) and electronic polarizability (αe) [40].…”

Section: Oxygen Packing Density Concentration Coordination Number Int...mentioning

confidence: 99%

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

Ahmed,

Mawlud

2023

Preprint

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Er+ 3doped lead-bismuth tellurite glasses with the composition (75-x) TeO2 − 15 PbO – 10 Bi2O3 - xEr2O3 where (x = 0, 0.5, 1, 1.5, 2 and 2.5 mole%) were synthesized by using melt quenching technique. The influence of Er3+ doping was evaluated through physical and optical properties. The non-crystalline nature of the samples was analyzed by XRD. The density of the samples was increased from 6.387 to 6.528 g.cm− 3. The absorption spectra show eight transition bands corresponding to the transitions from 4I15/2 to 4I13/2, 4I11/2, 4I9/2, 4F9/2, 4S3/2, 4H11/2, 4F7/2 and 4F5/2, respectively. The experimental and calculated oscillator strengths were calculated based on the Judd-Ofelt theory. The intensity parameters follow the trend Ω2 > Ω6 > Ω4. Three emission bands were observed from the fluorescence spectra. The green transition 4S3/2 →4I15/2 is the strongest among other transitions. The color coordinates were determined by using CIE 1931 chromaticity diagram. The highest quantum efficiency was 95.11% for the transition 4S3/2 →4I15/2. The results suggest that the TPBE2 glass is a great promising candidate for photonic applications and fabrication of laser optical devices.

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$$\text {Er}^{3+}$$, $$\text {Nd}^{3+}$$, $$\text {Tm}^{3+}$$: Up-conversion in Lead Borophosphate Glasses for Visible Emission

Singh,

Singh

2024

J Fluoresc

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Influence of $$\text {Er}^{3+}$$ on structural and optical properties of borophosphate glasses

Cited by 10 publications

References 56 publications

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Role of PbO and Up-conversion in RE doped B2O3 - P2O 5 glasses

Spectroscopic Characteristics and Radiative Parameters of Er+3 Doped Ternary Lead Bismuth Tellurite Glass: Judd-Ofelt Analysis

$$\text {Er}^{3+}$$, $$\text {Nd}^{3+}$$, $$\text {Tm}^{3+}$$: Up-conversion in Lead Borophosphate Glasses for Visible Emission

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