Investigations of thermal, structural and optical properties of tellurite glass with WO3 adding

Fares, Hssen; Jlassi, I.; Elhouichet, Habib; Férid, Mokhtar

doi:10.1016/j.jnoncrysol.2014.04.012

Cited by 116 publications

(58 citation statements)

References 43 publications

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“…The obtained thermal parameters for glasses are close to the one found in other tellurite glass [10], The increase in Tg with the addition of 0.3 mol% and 0.6 mol% of Sm2O3 in the glass system, implies the increase in rigidity of network and increase of non-bridging oxygen (NBO) atoms in glass system [11]. Thermal stability factor is defined as ΔTs=Tc-Tg.…”

Section: Thermal Properties Of the Glassessupporting

confidence: 74%

Thermal stability and Judd-Ofelt analysis of optical properties of Sm3+-doped sodium tellurite glasses

Mawlud¹,

Ameena²,

Sahar³

et al. 2017

AIP Conference Proceedings

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Estimation of mean glandular dose for patients who undergo mammography and studying the factors affecting it AIP Conference Proceedings 1888, 020020 (2017) Abstract. Series of glasses based on (70-x) TeO2 -20Na2O -xSm2O3 (x=0, 0.3, 0.6, 1, 1.2, 1.5 mol%) have been prepared using melt-quenching technique. The nature of the glass has been confirmed using X-ray diffraction; it is found that the glass samples are amorphous in nature. The thermal stability of the glass has been determined by means of Differential Thermal Analysis (DTA). From the DTA curve, the glass transition temperature (Tg), crystallization temperature (Tc) and melting temperature (Tm) have been identified and thermal stability is also calculated. The absorption properties of these samples are obtained by using UV-Visible-NIR spectrometer, the recorded absorption spectra exhibit nine absorption transition bands peaks corresponding to the transitions from ground level 6 H5/2→ 6 P3/2, 4 I11/2, 6 F11/2, 6 F9/2, 6 F7/2, 6 F5/2, 6 F3/2, 6 H15/2 and 6 F1/2. The emission characteristic of this glass is characterized using Photoluminescence (PL) spectroscopy at excited wavelength 404 nm, the emission spectra consisted of four emission bands at 561.95 nm, 598.69 nm, 643.77 nm and 704.56 nm which were assigned as a transition 4 G5/2→ 6 H5/2, 6 H7/2, 6 H9/2 and 6 H11/2 respectively. From f-f intensity model the experimental oscillator strengths, fexp and theoretical oscillator strength fcal were calculated. Using Judd-Ofelt theory and fit process of least square, the phenomenological intensity parameters Ωλ (λ=2,4,6) were obtained, In order to evaluate potential applications of Sm 3+ ions in telluride glasses, the spectroscopic parameters: transition probability AR, branching ratio Br, radiative life time τr, emission pick cross section σλ for each band were calculated. The comparative studies with other Sm 3+ doped different glasses showed that present glasses could be a potential candidate for lasers.

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Section: Thermal Properties Of the Glassessupporting

confidence: 74%

Thermal stability and Judd-Ofelt analysis of optical properties of Sm3+-doped sodium tellurite glasses

Mawlud¹,

Ameena²,

Sahar³

et al. 2017

AIP Conference Proceedings

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show abstract

“…It is known that the structural units of WO 3 oxide have a higher phonon energy ( $ 920 cm À 1 ) than that of the TeO 2 counterpart [9], and adding some WO 3 into tellurite glass can also improve the glass stability [10]. Therefore in this paper, the WO 3 oxide is introduced into the Ho 3 þ /Tm 3 þ codoped tellurite glass with aim to improve the 2 mm fluorescence of Ho 3 þ by providing phonons with relatively suitable and large energy for the energy transfer process from Tm 3 þ to Ho 3 þ ions and meanwhile enhance the thermal stability of glass host.…”

Section: Introductionmentioning

confidence: 99%

Enhanced 2 µm fluorescence and thermal stability in Ho3+/Tm3+ codoped WO3 modified tellurite glasses

Zhou

Huang

et al. 2015

Materials Letters

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“…A broad band is observed around 667 cm -1 in the spectra of all the TSW glasses. It is observed from the literature that IR spectra of the Tellurium dioxide based glasses contain an intense absorption band in the region 600-700 cm -1 [40][41][42]. Table 4.…”

Section: Ftir Spectramentioning

confidence: 99%

Influence of Sb2O3 on tellurite based glasses for photonic applications

Rao

Prasad

Rao

et al. 2016

Journal of Alloys and Compounds

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Investigations of thermal, structural and optical properties of tellurite glass with WO3 adding

Cited by 116 publications

References 43 publications

Thermal stability and Judd-Ofelt analysis of optical properties of Sm3+-doped sodium tellurite glasses

Thermal stability and Judd-Ofelt analysis of optical properties of Sm3+-doped sodium tellurite glasses

Enhanced 2 µm fluorescence and thermal stability in Ho3+/Tm3+ codoped WO3 modified tellurite glasses

Influence of Sb2O3 on tellurite based glasses for photonic applications

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