Structural, thermal, optical and luminescence properties of Dy3+ ions doped Zinc Potassium Alumino Borate glasses for optoelectronics applications

Manjeet, None; ., Anu .; Ravina, None; Deopa, Nisha; Kumar, Anand; Chahal, Radwan; Dahiya, Sajjan; Punia, R.; Rao, A.S.

doi:10.1016/j.jnoncrysol.2022.121613

Cited by 21 publications

(5 citation statements)

References 75 publications

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“…The UV absorption edge of the glasses may be further examined in the context of Tauc and Urbach plots. ,,,− The following expression for the absorption coefficient, α, as a function of photon energy ( hν ) may be utilized to estimate the optical band gap energy, E opt α ( ν ) = ξ ( h ν − E opt ) 2 h ν where the exponent of 2 is associated with allowed indirect transitions anticipated for glasses and ξ is a constant. , The corresponding Tauc plots of ( Eα ) 1/2 vs photon energy ( hν ) generated are shown in Figure a, which were used to estimate E opt from extrapolation of the linear portion to obtain the intercept on the energy axis. The E opt values determined are presented in Table .…”

Section: Resultsmentioning

confidence: 99%

“…The Urbach energy, E U , associated with band tailing reflecting defects/disorder may be evaluated next from the following relation α ( ν ) = α 0 0.25em exp nobreak0em0.25em⁡ ( h ν E U ) where α 0 is a constant and hν is the photon energy. ,, Accordingly, the Urbach energy of the studied glasses was evaluated from the ln(α) vs hν plot as shown in Figure b. The E U values determined are presented together with the indirect optical band gaps in Table .…”

Section: Resultsmentioning

confidence: 99%

“…where α 0 is a constant and hν is the photon energy. 7,11,39 Accordingly, the Urbach energy of the studied glasses was evaluated from the ln(α) vs hν plot as shown in Figure 8b. The E U values determined are presented together with the indirect optical band gaps in Table 6.…”

Section: Optical Propertiesmentioning

confidence: 99%

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Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Jiménez

2024

ACS Org. Inorg. Au

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Near-infrared (NIR)-emitting phosphate glasses containing Nd 3+ ions are attractive for applications in laser materials and solar spectral converters. The composition− structure−property relation in this type of glass system is thus of interest from fundamental and applied perspectives. In this work, Nd 3+ -containing glasses were made by melting with 50P 2 O 5 -(50 − x)BaO-xNd 2 O 3 (x = 0, 0.5, 1.0, 2.0, 3.0, 4.0 mol %) nominal compositions and studied comprehensively by density and related physical properties, X-ray diffraction (XRD), Raman spectroscopy, O 1s X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), dilatometry, ultraviolet−visible (UV−vis)−NIR optical absorption, and photoluminescence (PL) spectroscopy with decay dynamics assessment. The densities and molar volumes of the Nd 3+ -containing glasses generally increased with Nd 2 O 3 concentration also resulting in shorter Nd 3+ −Nd 3+ distances. XRD supported the amorphous nature of the glasses, whereas the Raman spectra evolution was indicative of glass depolymerization being induced by Nd 3+ ions. Oxygen (1s) and phosphorus (2p) analysis by XPS for the glass with 4.0 mol % Nd 2 O 3 agreed with the increase in nonbridging oxygens relative to the undoped host. DSC results showed that the glass transition temperatures increased with Nd 3+ concentration, with the glasses also displaying a decreased tendency toward crystallization. Dilatometry showed trends of increasing softening temperatures and decreasing thermal expansion coefficients with increasing Nd 2 O 3 content. A glass strengthening/tightening effect was then indicated to be induced by Nd 3+ with higher field strength compared to Ba 2+ ions. The UV−vis−NIR absorption by Nd 3+ ions increased consistently with Nd 3+ concentration. The UV−vis absorption edges of the Nd-containing glasses were also analyzed via Tauc and Urbach plots for comparison with the undoped host. Concerning the PL behavior, the Nd 3+ NIR emission intensity was highest for 1.0 mol % Nd 2 O 3 and decreased thereafter. The decay kinetics of the 4 F 3/2 emitting state in Nd 3+ ions analyzed revealed decreasing lifetimes where the decay rate analysis pointed to the prevalence of ion−ion excitation migration leading to PL quenching at high Nd 3+ concentrations.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Jiménez

2024

ACS Org. Inorg. Au

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“…A new method to modify the luminescence properties of phosphors was suggested by Ding et al (2021) by successfully synthesizing mixed‐valence Eu‐doped Ba 2 AlB 4 O 9 Cl (BABOC) in an air atmosphere for the first time [15]. Zinc potassium alumino borate (ZnKAlB) glasses doped with dysprosium (Dy 3+ ) ions of different concentrations were synthesized through the process of melt quenching by Manjeet et al [16]. Their work primarily explains the essential features of borate glasses with Dy 3+ ion doping to explain their potential use in tricolour w‐LEDs and lasers.…”

Section: Introductionmentioning

confidence: 99%

Investigations of thermoluminescence characteristics of SrAlBO₄:Eu³⁺ phosphors irradiated with gamma rays and carbon ion beam

Joseph,

Parauha,

Dhoble

2023

Luminescence

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A series of SrAlBO4: Eu phosphors doped with different concentrations of Eu (0.1 0.3, 0.5, 0.7, 1.0 mol%) have been synthesized via solid state diffusion method and their thermoluminescence properties were analyzed for gamma and carbon ion irradiation. The phase purity, morphological properties, vibrational features and thermal stability of the prepared sample were analyzed by X‐Ray diffraction (XRD) and scanning electron microscope (SEM), Fourier transform infrared (FT‐IR) and Thermogravimetric/Differential Thermal Analyzer (TG/DTA) techniques, respectively. The TL properties of the proposed materials shows broad dosimetric bands, peaking at 202 oC for 0.12 kGy gamma irradiation. The highest TL intensity has obtained for 0.7 mol% concentration of Eu ions under Gamma irradiation. Furthermore, the glow curve of the proposed materials shows a broad emission band, centered at 148 °C under carbon ion beam irradiation and exhibits the highest emission intensity for 0.1 mol% Eu concentration. In addition, the dosimetric trapping parameters of the prepared samples such as symmetry factor, order of kinetics, activation energy, frequency factor have been analyzed using various methods such as chen’s peak shape method, initial growth method, Ilich method. The obtained results of the samples show the potential for dosimetric application.

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“…Based on the above discussion, this paper aims to develop a new type of Ag-Ndcodoped phosphate glass material to expand the research of Ag-doped phosphate RPL glass dosimeters. Ag and other rare earth-doped [24][25][26][27] dosimeter glasses are also desired for further investigation. In this work, the matrix, Nd-doped, Ag-doped, and Ag-Nd-codoped LiPO 3 -Al (PO 3 ) 3 glasses were prepared.…”

Section: Introductionmentioning

confidence: 99%

Silver-Neodymium Codoped Lithium Aluminum Metaphosphate Glasses for Radio-Photoluminescence Dosimeter

Cheng

Song

et al. 2022

Materials

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Commercial radio-photoluminescence (RPL) glass dosimeters generally use Ag single-doped phosphate glass as a single-wavelength sensor. Now, a novel type of Ag–Nd-codoped phosphate glass has been developed, which can be applied to dual-wavelength or multi-wavelength RPL sensors, and can thus improve the accuracy and stability of RPL dosimeters. An anhydrous 99.5 (0.7LiPO3–0.3Al (PO3)3) −0.25Ag2O–0.25Nd2O3 glass was prepared and irradiated at different doses, and then the absorption, fluorescence, infrared transmission spectra, as well as fluorescence lifetimes were tested and analyzed. The results show that there is an energy transfer between the Ag defect center and Nd3+ ions, and the transfer efficiency using 380 nm excitation is greater than that using 310 nm excitation. Aside from the 650 nm fluorescence of the Ag defect center, strong 882 nm and 1054 nm fluorescences of Nd ions are exhibited. It is possible that these fluorescences would allow the developed Ag–Nd-codoped phosphate glass to be applied to new RPL glass sensors and dosimeters.

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Structural, thermal, optical and luminescence properties of Dy3+ ions doped Zinc Potassium Alumino Borate glasses for optoelectronics applications

Cited by 21 publications

References 75 publications

Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Investigations of thermoluminescence characteristics of SrAlBO₄:Eu³⁺ phosphors irradiated with gamma rays and carbon ion beam

Silver-Neodymium Codoped Lithium Aluminum Metaphosphate Glasses for Radio-Photoluminescence Dosimeter

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Structural, thermal, optical and luminescence properties of Dy3+ ions doped Zinc Potassium Alumino Borate glasses for optoelectronics applications

Cited by 21 publications

References 75 publications

Holistic Assessment of NIR-Emitting Nd3+-Activated Phosphate Glasses: A Structure–Property Relationship Study

Holistic Assessment of NIR-Emitting Nd3+-Activated Phosphate Glasses: A Structure–Property Relationship Study

Investigations of thermoluminescence characteristics of SrAlBO4:Eu3+ phosphors irradiated with gamma rays and carbon ion beam

Silver-Neodymium Codoped Lithium Aluminum Metaphosphate Glasses for Radio-Photoluminescence Dosimeter

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Product

Resources

About

Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Holistic Assessment of NIR-Emitting Nd³⁺-Activated Phosphate Glasses: A Structure–Property Relationship Study

Investigations of thermoluminescence characteristics of SrAlBO₄:Eu³⁺ phosphors irradiated with gamma rays and carbon ion beam