Nano-silver enhanced luminescence of Eu3+-doped lead tellurite glass

Dousti, M. Reza; Sahar, Md. Rahim; Rohani, Md. Supar; Samavati, Alireza; Mahraz, Zahra Ashur Said; Amjad, Raja J.; Awang, Asmahani; Arifin, Ramli

doi:10.1016/j.molstruc.2014.02.032

Cited by 38 publications

(13 citation statements)

References 18 publications

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“…Silver LSPR peak has been observed above 500 nm in [22,34]. In tellurite matrix with its refractive index of approximately 2, LSPR band shifts to higher wavelengths in comparison to silicate glasses [20]. This is consistent with the following equation [35]:…”

Section: Uv-vis Uv-vis Spectrum Of Ageu1 Sample Is Shown Insupporting

confidence: 78%

Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles

Lewandowski

Dembski

Walas

et al. 2017

Journal of Nanomaterials

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Glass systems of 73TeO 2 -4BaO-3Bi 2 O 3 -2Eu 2 O 3 -xAg (in molar ratio where x = 0, 1, 2, and 3) compositions have been successfully synthesized. Silver nanoparticles were obtained with the employment of heat treatment (HT) procedure executed at 350 ∘ C. Glass transition temperatures of different compositions have been determined through DSC measurements. XRD results presented characteristic amorphous halo indicating lack of long range order in the samples. FTIR structural studies revealed that glass matrix is mainly composed of TeO 3 and TeO 4 species and is stable after different applied heat treatment times. X-ray photoelectron spectroscopy (XPS) measurements confirmed that in selected samples part of Ag ions changed oxidation state to form Ag 0 species. TEM measurements revealed nanoparticles of size in the range of 20-40 nm. UV-vis absorption results demonstrated characteristic transitions of Eu 3+ ions. Additionally, UV-vis spectra of samples heat-treated for 6, 12, 24, and 48 hours presented bands related to silver nanoparticles. Photoluminescence (PL) studies have been performed with excitation wavelength of exc = 395 nm. Obtained spectra exhibited peaks due to 5 D 0 -7 F J (where = 2, 3, 4) and 5 D 1 -7 F J (where = 1, 2, 3) transitions of Eu 3+ . Moreover, luminescence measurement indicated enhancement of rare earth ions emissions in several of the annealed samples. Increase of emission intensity of about 35% has been observed.

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Section: Uv-vis Uv-vis Spectrum Of Ageu1 Sample Is Shown Insupporting

confidence: 78%

Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles

Lewandowski

Dembski

Walas

et al. 2017

Journal of Nanomaterials

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“…6 that the relevant 5 D 0 → 7 F J (J = 1, 2) transitions gradually decrease in intensity. With respect to such efect, various glass systems have consistently shown rare-earth emission quenching linked to high concentrations of metal NPs [4,10,14,20,21,28,[31][32][33][34]. In such case, a role of the metallic particles acting as a plasmonic diluent is interpreted as a result of an excitation energy transfer from the rare-earth ions to the metal particles [14].…”

Section: Inluence Of Thermal Processing On Glass Optical Absorption Amentioning

confidence: 99%

“…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].…”

mentioning

confidence: 94%

“…

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].

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mentioning

confidence: 99%

“…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].…”

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confidence: 99%

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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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Synthesis and luminescence properties of novel 8‐hydroxyquinoline derivatives and their Eu(III) complexes

Guo

Shu

et al. 2018

Luminescence

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Six novel 8-hydroxyquinoline derivatives were synthesized using 2-methyl-8-hydroxyquinoline and para-substituted phenol as the main starting materials, and were characterized by H nuclear magnetic resonance (NMR), mass spectrometry (MS), ultraviolet (UV) light analysis and infra-red (IR) light analysis. Their complexes with Eu(III) were also prepared and characterized by elemental analysis, molar conductivity, UV light analysis, IR light analysis, and thermogravimetric-differential thermal analysis (TG-DTA). The results showed that the ligand coordinated well with Eu(III) ions and had excellent thermal stability. The structure of the target complex was EuY (NO ) .2H O. The luminescence properties of the target complexes were investigated, the results indicated that all target complexes had favorable luminescence properties and that the introduction of an electron-donating group could enhance the luminescence intensity of the corresponding complexes, but the addition of an electron-withdrawing group had the opposite effect. Among all the target complexes, the methoxy-substituted complex (-OCH ) had the highest fluorescence intensity and the nitro-substituted complex (-NO ) had the weakest fluorescence intensity. The results showed that 8-hydroxyquinoline derivatives had good energy transfer efficiency for the Eu(III) ion. All the target complexes had a relatively high fluorescence quantum yield. The fluorescence quantum yield of the complex EuY (NO ) .2H O was highest among all target complexes and was up to 0.628. Because of excellent luminescence properties and thermal stabilities of the Eu(III) complexes, they could be used as promising candidate luminescent materials.

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Nano-silver enhanced luminescence of Eu3+-doped lead tellurite glass

Cited by 38 publications

References 18 publications

Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles

Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles

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

Synthesis and luminescence properties of novel 8‐hydroxyquinoline derivatives and their Eu(III) complexes

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Nano-silver enhanced luminescence of Eu3+-doped lead tellurite glass

Cited by 38 publications

References 18 publications

Heat Treatment Effect on Eu3+ Doped TeO2-BaO-Bi2O3 Glass Systems with Ag Nanoparticles

Heat Treatment Effect on Eu3+ Doped TeO2-BaO-Bi2O3 Glass Systems with Ag Nanoparticles

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

Synthesis and luminescence properties of novel 8‐hydroxyquinoline derivatives and their Eu(III) complexes

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Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles

Heat Treatment Effect on Eu³⁺ Doped TeO₂-BaO-Bi₂O₃ Glass Systems with Ag Nanoparticles