Evolution of Ag species and molecular-like Ag cluster sensitized Eu3+ emission in oxyfluoride glass for tunable light emitting

Ye, Song; Guo, Zhuang; Wang, Huiyun; Song, Li; Liu, Tianhua; Wang, Deping

doi:10.1016/j.jallcom.2016.06.226

Cited by 28 publications

(23 citation statements)

References 29 publications

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“…3 does succeed. This harmonizes with the recent report from Ye et al [12] pointing out that ML silver clusters efectively excited at 340 nm are eicient sensitizers for Eu 3+ ions in the oxyluoride glass matrix studied. Further on, excitation at 360 and 380 nm show intense Eu 3+ PL as these are in resonance with some excitation peaks in Eu 3+ (Fig.…”

Section: Photoluminescence Propertiessupporting

confidence: 92%

“…Further, the excitation spectrum shown in Fig. 3 for the 8AgSn-Eu glass is consistent with previous studies in other glass systems where ML silver species were reported to enhance Eu 3+ emission [7][8][9]12]. Hence, it is reasonable to consider the presence of ionic ML silver aggregates at the origin of a sensitized Eu 3+ PL in the 8AgSn-Eu glass.…”

Section: Photoluminescence Propertiessupporting

confidence: 89%

“…

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].

…”

mentioning

confidence: 99%

“…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.…”

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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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Section: Photoluminescence Propertiessupporting

confidence: 92%

Section: Photoluminescence Propertiessupporting

confidence: 89%

“…

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].

…”

mentioning

confidence: 99%

mentioning

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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“…As the number of the Ag + ions and Ag atoms that constitute the AgNCs increases, their excitation and emission peak trend to shift towards longer wavelength. The luminescence band of Ag NCs can expand from 400 to 1000 nm and can be efficiently excited with UV‐vis light at about 325‐425 nm …”

Section: Introductionmentioning

confidence: 99%

Luminescence properties and tunable emission of Ag NCs in oxyfluoride glass through REF₃ (RE = Y, La and Gd) doping

Guo

Qiao

et al. 2017

J Am Ceram Soc

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In this research, series of Ag nanoclusters (Ag NCs) contained oxyfluoride glasses were prepared using the melt quenching method, in which the REF3 (RE = Y, La, and Gd) were selected as dopants to control their size distribution. The absorption, steady and time‐resolved PL spectra were carried to investigate the size dependent luminescence properties of Ag NCs. The spectral results indicated that the super broadband emission of Ag NCs is contributed by the spin‐allowed (blue side) and the spin‐forbidden (red side) transitions, respectively. Besides, the introduction of REF3 (RE = Y, La, and Gd) can promote the formation of Ag NCs with different sizes and therefore modulated their luminescence properties. The maximum external quantum yields of Ag NCs with emissions at 430, 510, 520, and 570 nm were evaluated to be 24.6%, 40.7%, 56.3% and 30.7%, respectively, which can be obtained in SAg, SAgLa, SAgGd, and SAgY.

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Photoluminescence of Ag+ and Agn+m in co-doped Pr3+/Yb3+ fluorophosphate glasses: tuning visible emission and energy transfer to Pr3+/Yb3+ ions through excitation in different silver species

Castro

Jubera

Fares

et al. 2019

J Mater Sci: Mater Electron

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HAL is a multidisciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Photoluminescence of Ag + and Agm n+ in co-doped Pr 3+ /Yb 3+ fluorophosphate glasses: tuning visible emission and energy transfer to Pr 3+ /Yb 3+ ions through excitation in different silver species

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Evolution of Ag species and molecular-like Ag cluster sensitized Eu3+ emission in oxyfluoride glass for tunable light emitting

Cited by 28 publications

References 29 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

Luminescence properties and tunable emission of Ag NCs in oxyfluoride glass through REF₃ (RE = Y, La and Gd) doping

Photoluminescence of Ag+ and Agn+m in co-doped Pr3+/Yb3+ fluorophosphate glasses: tuning visible emission and energy transfer to Pr3+/Yb3+ ions through excitation in different silver species

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Evolution of Ag species and molecular-like Ag cluster sensitized Eu3+ emission in oxyfluoride glass for tunable light emitting

Cited by 28 publications

References 29 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

Luminescence properties and tunable emission of Ag NCs in oxyfluoride glass through REF3 (RE = Y, La and Gd) doping

Photoluminescence of Ag+ and Agn+m in co-doped Pr3+/Yb3+ fluorophosphate glasses: tuning visible emission and energy transfer to Pr3+/Yb3+ ions through excitation in different silver species

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Luminescence properties and tunable emission of Ag NCs in oxyfluoride glass through REF₃ (RE = Y, La and Gd) doping