5D3→7FJ emission in terbium-doped sol–gel glasses

Silversmith, A. J.; Boye, D.M.; Brewer, Karen S.; Gillespie, Carrie; Lu, Yue; Campbell, David V.

doi:10.1016/j.jlumin.2005.09.009

Cited by 69 publications

(43 citation statements)

References 13 publications

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“…The luminescent complex into porous glasses opens up the possibility of using inorganic species ligands and increasing the luminescence by several orders of magnitude (Reisfeld et al 2000). Much studies have been carried out on the preparation and luminescence properties of Tb 3+ and other rare-earth complexes in sol-gelderived silica matrix (Silversmith et al 2006;Armellini et al 2009;Jyothy et al 2009). Among them, sol-gel technique is versatile and convenient method of preparing transparent optical material at low temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of CdS nanoparticles on photoluminescence spectra of Tb3 + in sol–gel-derived silica glasses

Rai

Bokatial

2011

Bull Mater Sci

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CdS nanoparticles doped with Tb 3+ were synthesized by sol-gel technique. The influence of CdS on the Tb 3+ glass was studied by UV-Visible and luminescence spectroscopy. The luminescence intensity of the glasses increased significantly in the presence of CdS nanoparticles. Terbium ions excited into the 5 D 3 level have a rich emission spectrum in the 400-700 nm range decaying to different 7 F J levels. The intensity of violet and blue luminescence from 5 D 3 level is highly dependent on Tb 3+ concentration, on presence of CdS co-dopant and annealing conditions.

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Section: Introductionmentioning

confidence: 99%

Effect of CdS nanoparticles on photoluminescence spectra of Tb3 + in sol–gel-derived silica glasses

Rai

Bokatial

2011

Bull Mater Sci

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“…For the porous glass, there are some non-bridging oxygen (NNO) atoms at the internal surface of nanopores and channels, and the rare-earth ions have high coordination numbers so the doped ions accumulated to share the limited non-bridging oxygen atoms [13,16]. Therefore, in the sintered porous glass, parts of Yb 3?…”

Section: Resultsmentioning

confidence: 99%

“…At low RE concentrations, the dopants can be uniformly bound to NNO atoms in RE-O-Si bonds. As the rare-earth ions concentration is increased, the formed clusters facilitate energy migration and fluorescence quenching [13]. It is suggested that co-doping Yb 3 only prevents from clustering of Tb 3?…”

Section: Resultsmentioning

confidence: 99%

“…Compared with the non-silica glass systems, the silica glass has some advantages such as higher mechanical, thermal and chemical stability [10][11][12]. However, concentration quenching due to clustering of rare-earth ions and transition metal ions prevents the application of luminous silica glasses [11][12][13][14]. Recently, we developed a new approach to overcome the problems mentioned above.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced green upconversion luminescence in Yb–Tb co-doped sintered silica nanoporous glass

Chu

Liu

et al. 2014

Appl. Phys. A

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We report on a new kind of green-emitting (543 nm) high-silica luminous glass, which is fabricated by sintering of Yb 3? -Tb 3? co-doped nanoporous glass. The fluorescence spectra show that there is an energy transfer between Yb 3? and Tb 3? . The energy transfer process can be enhanced by addition of Al 3? into the Yb 3? -Tb 3? codoped nanoporous glass, and the energy transfer rate can be enhanced more than three times than that of Yb 3? -Tb 3? co-doped porous glass. The role of Al 3? has been discussed, and the fluorescence decay curve reveals that the Al 3? play an important role in the energy transfer process.

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“…Further, the incorporation of metallic or oxide NPs to the stable RE organic complexes unlocks the prospects for escalating their photoluminescence emission intensity by several orders of magnitude. Numerous researches and deep studies on the improvement of optical properties of RE ions and their complexes in diverse matrices have been approved and are still ongoing [34,35,38]. Polyvinyl alcohol (PVA) is a semicrystalline and nontoxic polymer possessing three isomers.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Investigations on Polyvinyl Alcohol Film with Complex of Terbium Ions along with Bismuth Nanoparticles for Improved Green Emission

Kaur¹,

Kumar²,

Rai³

2017

Acrylic Polymers in Healthcare

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In this chapter, bismuth nanoparticles (NPs) have been synthesized by the pulsed laser ablation technique at diferent pH in diferent aqueous solutions (namely, water (H), water + sodium hydroxide (HN), and water + hydrochloric acid (HC)). The NPs in aqueous solutions have been characterized by transmission electron microscopy (TEM) and UV-Vis-NIR absorption techniques. The NPs are spherical, core shell, and hollow spheres in H, HN, and HC, respectively. The vibrational features have been studied using Raman technique and correlated with solid NPs, hollow NPs, core shell NPs, and NPs complex, etc. The Bi NPs were subsequently scatered with Tb 3+ ions and their complex with salicylic acid (Sal) and 1,10-phenanthroline in aqueous solution of polyvinyl alcohol to get thin polymer ilms. Then photoluminescence properties of Tb 3+ ions and the (Tb(Sal) 3 (Phen)) complex were studied using 266 nm and 355 nm as excitation wavelengths to seek into the inluence of Bi NPs on their emissive properties. Terbium ions in case of (Tb(Sal) 3 (Phen)) complex together with NPs demonstrate an intense and extended emission spectrum in the 375-700 nm range for transition arising even from

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5D3→7FJ emission in terbium-doped sol–gel glasses

Cited by 69 publications

References 13 publications

Effect of CdS nanoparticles on photoluminescence spectra of Tb3 + in sol–gel-derived silica glasses

Effect of CdS nanoparticles on photoluminescence spectra of Tb3 + in sol–gel-derived silica glasses

Enhanced green upconversion luminescence in Yb–Tb co-doped sintered silica nanoporous glass

Spectroscopic Investigations on Polyvinyl Alcohol Film with Complex of Terbium Ions along with Bismuth Nanoparticles for Improved Green Emission

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