Application of Cu2O-doped phosphate glasses for bandpass filter

Elhaes, Hanan; Attallah, M.; Elbashar, Y. H.; El-Okr, Mohamed; Ibrahim, Medhat

doi:10.1016/j.physb.2014.05.015

Cited by 59 publications

(30 citation statements)

References 26 publications

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“…In general, the decrease in optical band gap energies with the addition of dopants in glasses is typically associated with the increase in nonbridging oxygen terminals connected to decreasing chain lengths in the glass network [26,27]. However, as discussed for the current case, UV light absorption in Ag + ions occurs due to the 4d 10 → 4d 9 5s 1 parity-forbidden transitions which are partially allowed in the solid host due to ion-lattice interactions [16].…”

Section: Optical Absorption Evaluationmentioning

confidence: 90%

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Optical Properties of Eu3+-Doped Aluminophosphate Glass with a High Concentration of Silver and Tin

Jiménez

2016

J Inorg Organomet Polym

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last decades in search of improvements in the luminescent properties of europium given its relevance for optical device applications [1][2][3][4][5][6][7][8][9][10][11][12][13]. Malta et al. [1] irst reported that an improved photoluminescence (PL) of Eu 3+ ions in glass containing Ag nanoparticles (NPs) occurred due to the surface plasmon resonance (SPR) of the silver particles.Other groups subsequently concluded similarly on the role of local-ield efects of plasmonic Ag particles amplifying Eu 3+ PL in glasses [2,3,5,10,11,13]. On the other hand, several other studies have added to the discussion with respect to the conditions and mechanisms by which Eu 3+ emission is enhanced by the presence of silver [4,[6][7][8][9]12]. Namely, ionic metal species have been argued to be at the origin of energy transfer processes leading to a sensitized Eu 3+ PL rather than the Ag NPs themselves. Moreover, the NPs have been reported to instead lead to an eicient PL quenching of the rare-earth ions [4, 6] through an energy transfer/deactivating efect recently referred to as the plasmonic diluent efect [14]. Hence, achieving the desired enhanced optical properties is not straightforward. Moreover, it requires signiicant research eforts towards understanding the fundamental interactions between europium ions and the diferent oxidation and aggregation states of silver.Silicate [1-3, 7, 9, 12], borate [8], tellurite [10,11], and germanate [5] glasses were often the object of investigation regarding the interaction between europium and silver species. However, phosphate-based glass hosts notable for their high metal solubility, low-melting character, relatively low glass transition temperature, and high thermal stability are promising materials in the ield of photonics [13,15]. In these, the addition of aluminium oxide as a less acid network former results in a strengthened glass network with improved chemical durability and thermo-mechanical stability [16][17][18]. In addition, co-doping with SnO is believed Abstract The optical properties of Eu 3+ -doped aluminophosphate glass containing a high concentration of Ag 2 O and SnO co-dopants (8 mol% of each) are reported. Glass preparation is carried out by melt-quenching, and a subsequent in situ monitored heat treatment (HT) is carried out for the reduction of ionic silver to Ag nanoparticles (NPs) via reducing agent tin(II). An enhanced ultraviolet broadband excitation range for Eu 3+ ions is realized for the meltquenched glass, likely due to the creation of molecule-like silver species such as Ag + -Ag + dimers. The real-time optical monitoring of the glass during isothermal HT shows the steady development of the surface plasmon resonance peak of Ag NPs near 420 nm. Concurrently exciting Eu 3+ ions in situ at 420 nm unveils the plasmonic diluent efect manifested through the quenching of Eu 3+ luminescence. The decay times of the 5 D 0 emitting state in Eu 3+ ions in the melt-quenched and NP-doped glasses are measured and discussed.

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Section: Optical Absorption Evaluationmentioning

confidence: 90%

“…For glasses as amorphous materials, the value n = 2 connected to allowed-indirect transitions is usually employed in itting the experimental results [25,26]. This implies the interactions of photons with lattice vibrations in the light absorption process.…”

Section: Optical Absorption Evaluationmentioning

confidence: 99%

Optical Properties of Eu3+-Doped Aluminophosphate Glass with a High Concentration of Silver and Tin

Jiménez

2016

J Inorg Organomet Polym

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“…There are two main kinds of filters according to the mechanism of filtration, the interference filters which are work by selective reflection and transmittance and absorption filters which are work by selective absorption and transmittance [1]. The interference filters need high technology of fabrication [2] while the absorption filters can be fabricated from glass using the melt-quench method [3,4]. 3d transition metals ions (V, Cr, Mn, Fe, Co, Ni and Cu) giving rise to intense absorption in the visible and near infrared region [3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…Phosphate glass doped with copper ions were studied to obtain bandpass absorption filter [3,4]. In the literature there are a poor quantitative data on the influence of 3d transition metal impurities on optical absorption in the transmission spectral range of tellurite glasses.…”

Section: Introductionmentioning

confidence: 99%

Synthesis optical properties of novel TeO2 based glasses

Yousef

Mansour

Hassaan

et al. 2016

Optik

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“…Kaca fosfat yang dibuat akan dipadukan dengan oksida logam transisi yaitu Seng Oksida ( ZnO ) dan logam alkali tanah Magnesium Oksida ( MgO ). ZnO dapat bertindak sebagai modifier karena ZnO dapat mencegah reaksi hidrasi dan dapat membuat koneksi diantara anion fosfat dengan konduktivitas ioniknya [11]. MgO merupakan salah satu modifier terbaik yang dapat mengatasi kelemahan kaca fosfat terhadap bahan kimia.…”

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KARAKTERISASI SIFAT FISIK dan ABSORPSI OPTIKAL SISTEM KACA ZnO – MgO - P2O5 MENGGUNAKAN TEKNIK MELT QUENCHING

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Budi

Marpaung

et al. 2016

SPEKTRA

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AbstrakPembuatan kaca fosfat dengan komposisi kimia x ZnO -30 MgO -( 70 -x ) P2O5 dengan x = 0, 5, 10, dan 15 mol% telah dilakukan menggunakan teknik melt quenching. Sistem kaca yang dibuat dikarakterisasi menggunakan difraksi sinar-X ( XRD ), pengujian sifat fisik dengan metode Archimedes, dan spektrofotometer UV-Vis untuk sifat optik. Hasil XRD menunjukkan bahwa kaca yang dibuat memiliki struktur amorf. Dari hasil pengujian fisik menunjukkan bahwa densitas kaca semakin menurun sedangkan volume molar meningkat dengan bertambahnya mol% ZnO. Absorpsi optikal diukur pada panjang gelombang 200 -800 nm menunjukkan tidak adanya berkas absorpsi yang tajam. Dari hasil spektra absorpsi optikal menunjukkan bahwa nilai energi gap menurun sedangkan energi Urbach dan indeks refraktif kaca meningkat dengan bertambahnya mol% ZnO.Kata-kata kunci: Kaca Fosfat, Melt Quenching, Sifat Fisik, Sifat Optik, Absorpsi. AbstractPhosphate glass with the chemical composition x ZnO -30 MgO -( 70 -x ) P2O5 with x = 0, 5, 10, and 15 mol% was done by melt quenching technique. The glasses system were characterized with X-Ray diffraction, physical property was measured by using Archimedes method, and UV-Vis spectrophotometer for optical property. The result of X-Ray difraction pattern shows that the glass system has an amorphous structure. The result of physical properties show that the value of density is decreased but the molar volume is increased with the increase of mol% ZnO. The optical absorption was measured in the wavelength region 200 -800 nm shows that there is no sharp absorption band edge. From absorption optical spectra shows that gap energy is decreased but Urbach energy and refractive index are increased with the increase of mol% ZnO.

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Application of Cu2O-doped phosphate glasses for bandpass filter

Cited by 59 publications

References 26 publications

Optical Properties of Eu3+-Doped Aluminophosphate Glass with a High Concentration of Silver and Tin

Optical Properties of Eu3+-Doped Aluminophosphate Glass with a High Concentration of Silver and Tin

Synthesis optical properties of novel TeO2 based glasses

KARAKTERISASI SIFAT FISIK dan ABSORPSI OPTIKAL SISTEM KACA ZnO – MgO - P2O5 MENGGUNAKAN TEKNIK MELT QUENCHING

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