Structure, thermal and spectroscopic properties of Cu2+ ions doped 59B2O3–10K2O–(30-x)ZnO–xBaO (0 ≤ x ≤ 30) glass system

Devde, G.N.; Upender, G.; Mouli, V. Chandra; Ravangave, L. S.

doi:10.1016/j.jnoncrysol.2015.10.022

Cited by 24 publications

(12 citation statements)

References 25 publications

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“…Copper ions are commonly used spin probes for local structure investigations in vitreous media [25][26][27][28][29]. For the interpretation of characteristic Cu 2+ spectrum (see Fig.…”

Section: +mentioning

confidence: 99%

Crystalline phase detection in glass ceramics by EPR spectroscopy

Antuzevičš

Rogulis

Fedotovs

et al. 2018

Low Temperature Physics

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The advances of EPR spectroscopy for the detection of activators as well as determining their local structure in the crystalline phase of glass ceramics is considered. The feasibility of d-element (Mn 2+ , Cu 2+ ) and f-element (Gd 3+ , Eu 2+ ) ion probes for the investigation of glass ceramics is discussed. In the case of Mn 2+ , the information is obtained from the EPR spectrum superhyperfine structure, for Gd 3+ and Eu 2+ probes -from the EPR spectrum fine structure, whereas for Cu 2+ ions the changes in the EPR spectrum shape could be useful. The examples of EPR spectra of the above-mentioned probes in oxyfluoride glass ceramics are illustrated. PACS: 76.30.-v Electron paramagnetic resonance and relaxation; 61.72.Hh Indirect evidence of dislocations and other defects.

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“…Copper ions are commonly used spin probes for local structure investigations in vitreous media [25][26][27][28][29]. For the interpretation of characteristic Cu 2+ spectrum (see Fig.…”

Section: +mentioning

confidence: 99%

Crystalline phase detection in glass ceramics by EPR spectroscopy

Antuzevičš

Rogulis

Fedotovs

et al. 2018

Low Temperature Physics

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“…BaO increases nonbridging oxygen, but Ba 2+ stabilizes the glass network in this study and thus, increase in T g seemed to be attributable to increase in contents. [11][12][13] ZrO 2 plays the role of both the forming agent and intermediate agent and Zr 4+ increases bridging oxygen within glass network and thus, the more content of ZrO 2 the higher T g . 14,15) Figure 2 shows refractive index of the glasses depending on variation in the content of BaO and ZrO 2 .…”

Section: Resultsmentioning

confidence: 99%

“…It's well known that more content of BaO and ZrO 2 , the higher refractive index. [10][11][12][13][14][15] To increase the refractive index of the glass based on such fact, the content of BaO was increased from 25 mol% to 40 mol% and refractive index of the glass depending on change to the content of ZrO 2 was checked. Consequently, refractive index of the glass when the content of BaO was 40 mol%, was higher than 25 mol%.…”

Section: Resultsmentioning

confidence: 99%

Effect of Zirconium Dioxide in BaO-ZnO-B2O3-SiO2 system on Optical Properties of Color Conversion Glasses

Jeong

Jeon

Kim

et al. 2016

J. Korean Ceram. Soc

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The effect of zirconium dioxide (ZrO 2) on the properties of color conversion glasses was examined in the BaO-ZnO-B 2 O 3-SiO 2 system. The difference in refractive index between glass and phosphor affect the optical properties of the color conversion glass because of light scattering. Reducing the difference in refractive index is a method to improve the luminous efficacy of color conversion glasses. As a reference, a type of glass that contains 25 mol% of each component was used. To increase the refractive index of the glass samples, the BaO content was increased from 25 to 40 mol%, and ZrO 2 was added at levels of 1, 3, and 5 mol%. Color conversion glasses were prepared by sintering a mixture of glass and 5 wt% YAG:Ce 3+ phosphor. As a result, the refractive index of the glass was found to be dependent on the BaO and ZrO 2 contents in the BaO-ZnO-B 2 O 3-SiO 2 system. As the BaO and ZrO 2 contents were increased, the luminous efficacy of the color conversion glass was improved because the refractive index difference between the glass and the YAG:Ce 3+ phosphor decreased.

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“…The properties of B 2 O 3 glass can often be altered by the addition of network modifiers. The most commonly used network modifiers are the alkali (Li 2 O, Na 2 O, and K 2 O) and alkaline earth oxides (MgO, CaO, SrO, and BaO) [5,6]. When mixed with these glass modifiers, its internal structure is rearranged due to the formation of non-bridging oxygen [7].…”

Section: Introductionmentioning

confidence: 99%

“…The authors have also studied the spin-Hamiltonian parameters and site symmetry around Cu 2+ ions in these glasses using EPR and optical absorption studies. The variations in the thermal properties and other physical properties in terms of structural changes of glasses have been discussed [6].…”

Section: Introductionmentioning

confidence: 99%

Structure and Physical Properties of 59B2O3–10Na2O–(30 − x)CdO–xZnO–1CuO (0 ≤ x ≤ 30) Glass System

Ravangave¹,

Devde²

2018

Advances in Glass Science and Technology

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A series of stable and transparent glasses with the composition 59B 2 O 3-10Na 2 O-(30 − x) CdO-xZnO-1CuO (0 ≤ x ≤ 30) (where x = 0, 7.5, 15, 22.5, and 30 mol%) were prepared by conventional melt-quenching technique. These glasses were characterized using X-ray diffraction (XRD), Fourier-transform infrared (FTIR) and Raman spectroscopes, differential scanning calorimetry (DSC), optical absorption, and electron paramagnetic resonance (EPR). XRD and DSC analysis confirmed the glassy nature of the prepared samples. The physical properties such as density (ρ), molar volume (V m), oxygen packing density (OPD), and the molar volume of oxygen (V o) were calculated and discussed. FTIR and Raman studies showed that the glass network consists of BO 3 and BO 4 units in various borate groups. From DSC, it was found that the glass transition temperature (T g) varies nonlinearly with the addition of ZnO content in place of CdO. Both EPR and optical absorption results have confirmed that the Cu 2+ ions are in octahedral coordination with a strong tetrahedral distortion. The changes in various spectroscopic properties of Cu 2+ ions in the glasses such as spin-Hamiltonian parameters () and bonding coefficients (α 2 , β 1 2 , and β 2) were understood with the help of FTIR and Raman studies.

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Structure, thermal and spectroscopic properties of Cu2+ ions doped 59B2O3–10K2O–(30-x)ZnO–xBaO (0 ≤ x ≤ 30) glass system

Cited by 24 publications

References 25 publications

Crystalline phase detection in glass ceramics by EPR spectroscopy

Crystalline phase detection in glass ceramics by EPR spectroscopy

Effect of Zirconium Dioxide in BaO-ZnO-B2O3-SiO2 system on Optical Properties of Color Conversion Glasses

Structure and Physical Properties of 59B2O3–10Na2O–(30 − x)CdO–xZnO–1CuO (0 ≤ x ≤ 30) Glass System

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