Investigation of spectroscopic properties of Sm3+-doped oxyfluorophosphate glasses for laser and display applications

Neelima, G.; Ravi, Natarajan; Suresh, K.; Rasool, Sk. Nayab; Tyagarajan, K.; Prasad, T. Jayachandra

doi:10.1016/j.materresbull.2018.10.026

Cited by 31 publications

(9 citation statements)

References 45 publications

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“…The experimental and the calculated oscillator strengths were determined according to equations in the Ref. [22], and the results are listed in Table 1. Clearly both the calculated and the experimental oscillator strengths decrease significantly with increasing Sm 3+ concentrations.…”

Section: Field Strength and Judd-ofelt Analysismentioning

confidence: 99%

“…The lifetimes of the energy levels can be determined experimentally by measuring the emission decay from each of the 4 G 5/2 → 6 H 7/2 transitions [25,26]. When Sm 3+ is excited by an excitation wavelength, a relaxation non-radiation rapidly extends to fluorescent energy levels because of the gap energy [27]. Orange luminescence was produced from a strong band located at a wavelength of about 600 nm.…”

Section: Decay Curve Analysismentioning

confidence: 99%

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Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Rajagukguk

Harahap

Situmorang

et al. 2020

J. Korean Phys. Soc.

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Your article is protected by copyright and all rights are held exclusively by The Korean Physical Society. This e-offprint is for personal use only and shall not be self-archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com".

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Section: Field Strength and Judd-ofelt Analysismentioning

confidence: 99%

Section: Decay Curve Analysismentioning

confidence: 99%

Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Rajagukguk

Harahap

Situmorang

et al. 2020

J. Korean Phys. Soc.

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“…2.65 ms (PKAlCaFSm01) [37], 2.80 ms (OFBSm01) [38], 3.75 ms (NZLS05) [39], 0.59 ms TWZSm10 [41], 1.17 ms for GeBiNa-BaGdSm05 [42] and 2.42 ms for PcfBfTiS20 [43] glass.…”

Section: Decay Curve Analysismentioning

confidence: 98%

“…Furthermore, the ionic state of Sm 3+ ions can be straightforwardly reduced to the Sm 2+ state under a reducing atmosphere [25], ionization [26], or irradiation of ultrafast lasers [27] and spectral hole scorching studies [28]. But, less attention has been paid by researchers to a systematic analysis of heavy metal oxidemodified Sm 3+ -doped borate glass [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47] related to the other Ln 3+ ions because of intense emissions. It is utilized definitely for the combination of other Ln 3+ ions for improving the luminescence quantum efficiency, which is important in the field of optoelectronics [48,49].…”

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confidence: 99%

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Orange‐red luminescence of samarium‐doped bismuth–germanium–borate glass for light‐emitting devices

Netheti¹,

Ravanamma²,

Ravi³

et al. 2023

Luminescence

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Samarium (Sm3+)‐doped glass has sparked a rising interest in demonstrating a noticeable emission in the range of 400–700, which is advantageous in solid‐state lasers in the visible region, colour displays, undersea communication, and optical memory devices. This study reports the fabrication of Sm3+‐doped bismuth–germanium–borate glasses were established using a standard melt‐quenching technique and inspection by absorption, steady‐state luminescence, and transient studies. The typical peaks of Sm3+ ions were detected in the visible range under 403 nm excitation. A strong emission band was detected at 599 nm that resembles the 4G5/2→6H7/2 transition of Sm3+ ions for BGBiNYSm0.5 glass. Furthermore, a reddish‐orange (coral) luminescence at 646 nm that resembles the 4G5/2→6H9/2 transition was also perceived. The stimulated emission cross‐section of 4G5/2 level for BGBiNYSm0.5 glass was 0.39 × 10−22 cm2. Lifetime of the 4G5/2 level was enhanced for the BGBiNYSm0.5 glass and decreased with an increase in active ion concentrations. The lifetime quenching of ions at the metastable state was because of energy transfer among Sm3+ ions by cross‐relaxation channels. Commission Internationale de l'Éclairage (CIE) coordinates were evaluated from the emission spectra. Moreover, all the findings recommend these glass as light‐emitting materials in the coral region at 599 nm for solid‐state lighting applications.

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Crystal phase, morphology evolution and luminescence properties of Eu³⁺‐doped BiPO₄ phosphor prepared using the hydrothermal method

Yan

et al. 2021

Luminescence

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A series of Bi1‐xEuxPO4 phosphors was successfully prepared using an easy citric acid‐ assisted hydrothermal method. The effects of synthesis temperature, amount of citric acid, and Eu3+ concentration on the crystal phase, morphology, and luminescence properties were investigated. X‐ray diffraction results revealed that BiPO4:Eu3+ formed a hexagonal phase at 80°C, although it transformed to a monoclinic phase when the hydrothermal temperature was increased to 160°C. Moreover, it was found that a small amount of Eu3+ doping and the addition of citric acid introduced no secondary or related phases. The morphologies of the samples varied from nanoparticles to spherical microparticles to polyhedrons after the synthesis temperature was adjusted. Particle size was controlled by adding different amounts of citric acid. Under 394 nm excitation, the Bi0.95Eu0.05PO4 phosphor prepared at 160°C with 0.3 g of citric acid had excellent luminescence properties. A possible crystal growth mechanism during this reaction is proposed.

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Investigation of spectroscopic properties of Sm3+-doped oxyfluorophosphate glasses for laser and display applications

Cited by 31 publications

References 45 publications

Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Orange‐red luminescence of samarium‐doped bismuth–germanium–borate glass for light‐emitting devices

Crystal phase, morphology evolution and luminescence properties of Eu³⁺‐doped BiPO₄ phosphor prepared using the hydrothermal method

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Investigation of spectroscopic properties of Sm3+-doped oxyfluorophosphate glasses for laser and display applications

Cited by 31 publications

References 45 publications

Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Investigation of Sm3+-doped PBNaG glasses for orange LED applications

Orange‐red luminescence of samarium‐doped bismuth–germanium–borate glass for light‐emitting devices

Crystal phase, morphology evolution and luminescence properties of Eu3+‐doped BiPO4 phosphor prepared using the hydrothermal method

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Crystal phase, morphology evolution and luminescence properties of Eu³⁺‐doped BiPO₄ phosphor prepared using the hydrothermal method