The electrical properties of cadmium phosphate glasses at high electric fields

Hogarth, C. A.; Ghauri, M. A.

doi:10.1007/pl00020074

Cited by 7 publications

(4 citation statements)

References 9 publications

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“…From point of interest, cadmium comes as a divalent metal which act as a network former or modifier depending upon the chemical composition and the host material. It stabilizes the glass structure as well as modifies the optical and electronic properties of the host glasses [14][15][16][17]. The present study suggests a new glass system that can be used for the production of optical elements such as lenses and windows within visible and near-IR spectral range until 2500 nm.…”

Section: Introductionmentioning

confidence: 71%

Development of a New Glass for both Visible and Near-Infrared Optical Applications

El-Ghany

2018

KEM

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A glass system of composition 40P2O5-40ZnO-(20-x)Na2O-xCdO (where, x = 1, 2, 3, 4, 5 and 6 mol%) was prepared using the conventional melt quenching technique. The glass formability of the prepared samples was inspected using XRD technique. Archimedes’ method was used to determine the density of the prepared glass samples then the molar volume was calculated. The optical spectroscopic investigations of the prepared glass samples were carried out over the spectral range (190-2500 nm). The proposed glass showed a successive transparency in both visible and near-IR ranges of spectrum till 2500 nm with considerably high transmission of about 78%. The refractive index of the glass samples with some other useful parameters such as dielectric constant, electric susceptibility and electronic polarizability of the prepared glass were evaluated. The results suggest the practicality of utilizing such new glass in the fabrication of optical supplies such as lenses and optical windows used for Nd:YAG lasers. The metallization criteria data of the prepared glass propose a good basis for predicting new nonlinear optical materials.

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Section: Introductionmentioning

confidence: 71%

Development of a New Glass for both Visible and Near-Infrared Optical Applications

El-Ghany

2018

KEM

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“…These localized states are responsible for the transport of charge carriers. The small polaron hopping has a dominant role [20,21] in low electric fields, and in high fields, this is attributed either to Schottky (electrode-limited) [22] or to Poole-Frenkel (bulk-limited) [23] effects.…”

Section: Introductionmentioning

confidence: 99%

Effect of Li2O on the Refractive Index and Optical Band Gap of Cadmium Phosphate Glasses

Altaf¹,

Chaudhry²,

Siddiqi

2005

Glass Phys Chem

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A series of lithium cadmium phosphate glasses having composition (mol %) x Li 2 O-(50x )CdO-50P 2 O 5 were prepared in a platinum crucible by the melt quenching technique. The quantity x varies in the range 0-40. The mass density and refractive index of these glasses were found in the ranges 3.95-2.89 g/cm 3 and 1.55-1.40, respectively. The optical absorbance studies were also carried out on these glasses to measure their energy gaps. The absorption spectra of these glasses were recorded in the UV-visible range. No sharp edges were found in the optical spectra, which verifies the amorphous nature of these glasses. The optical band gap energies for these glasses were found to be in the range 2.58-3.5 eV. It was observed that the density, the refractive index, and the optical band gap energy decrease with increasing amount of lithium oxide. The band tailing, worked out from the Urbach plots, shows an increase with increasing Li 2 O content and lies in the range 0.47-0.78 eV. The absorption coefficient is observed to show an exponential dependence on the photon energy.

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“…It stabilizes the glass structure as well as modifies the optical and electronic properties of the host glasses [19]. Consequently, cadmium can be used as a coloring, phase separation, and photoconductive material [20,21]. Because of its high density and low binding energy, cadmium is used in quantum dot solar cells [22].…”

Section: Introductionmentioning

confidence: 99%

Cadmium Doped Copper Containing Phosphate Glass as a Bandpass Filter for Solar Cell Protection

El-Ghany

2018

JAP

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A glass system of composition 44P2O5-38ZnO-2CuO-(16-x)Na2O-xCdO (where, x = 1, 2, 3, 4, and 5 mol%) has been prepared using the conventional melt quenching technique. XRD patterns confirmed the amorphous nature for the prepared samples. Archimedesâ€™ method was used to determine the density of the prepared glass samples then the molar volume was calculated. The optical spectroscopic investigations of the prepared glass samples were carried out over the spectral range (190-1100 nm). The transmission spectra revealed that the prepared glass samples behave as bandpass filters in the visible region. The absorption studies were employed to determine the optical band gap and Urbach energy. The spectral distribution of the refractive index assured the lowest dispersion of the glass in the visible region. Other physical parameters such as the extinction coefficient, the optical conductivity, and the complex dielectric constant were evaluated. The results suggested the practicality of employing such low-cost glass as a bandpass filter for optical applications such as UV-elimination and solar cell protection. The role of CdO as a network modifier in the phosphate glass was revealed.

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The electrical properties of cadmium phosphate glasses at high electric fields

Cited by 7 publications

References 9 publications

Development of a New Glass for both Visible and Near-Infrared Optical Applications

Development of a New Glass for both Visible and Near-Infrared Optical Applications

Effect of Li2O on the Refractive Index and Optical Band Gap of Cadmium Phosphate Glasses

Cadmium Doped Copper Containing Phosphate Glass as a Bandpass Filter for Solar Cell Protection

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