Analysis of fluorescence characteristics of Sm3+-doped B2O3-rich glasses for Orange-light-emitting diodes

“…The emission signal decays in the ms time scale exhibit a multiphasic behavior, which is also common for Sm 3+ ions. [78][79][80] The absorption and emission spectra and the emission decays of the Eu-Cy and Tb-Cy networks at 298 K are shown in Fig. 9 (the corresponding data at 77 K are placed in Fig.…”

Section: Paper Dalton Transactionsmentioning

confidence: 99%

S-Heptazine N-ligand based luminescent coordination materials: synthesis, structural and luminescent studies of lanthanide–cyamelurate networks

et al. 2022

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“…For the last decade there were published a number of articles on the problem of functional glasses in the systems of B2O3-PbO-Bi2O3-GeO2 [22], Bi2O3-GeO2 [23], and B2O3-GeO2-Gd2O3 [24], doped with Sm 3+ and/or Gd 3+ . The above investigations have proved the perspective of such glasses application as orange lighting sources [25] and key-feature components of optoelectronic devices [26]. Nevertheless, for LT application B2O3-PbO-Bi2O3-GeO2 glasses doped by RE has not been reported yet.…”

mentioning

confidence: 89%

Sm3+/Gd3+ Co-doped Lead/Bismuth Borogermanate Glasses – New Materials for Luminescent Thermometry

Zykova,

Runina,

Avetissov

et al. 2024

Preprint

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The Sm3+/Gd3+ co-doped glasses in the B2O3–GeO2–PbO and B2O3–GeO2–Bi2O3 systems have been synthesized in the composition range of 40B2O3–40GeO2–(15-17)PbO(Bi2O3)–(3-2)Sm2O3–(2-1)Gd2O3 and 42.5B2O3–42.5GeO2–(11.25-12.75)PbO(Bi2O3)–(2.25-1.5)Sm2O3–(1.5-0.075)Gd2O3. The physical, structural, and spectral properties of the produced glasses have been studied. The fabricated glass samples demonstrated changes in temperature-sensitive luminescence parameters in 298-673 K temperature range. We found out several photoluminescence bands attributed with transitions from different Stark sublevels. By using a combination of two temperature sensitive and one non-sensitive transitions we calculated fluorescence intensities ratio (FIR). This procedure made it possible to increase the sensitivity of luminescence thermometry in several times. Such method could be very useful for the luminescent thermometry materials based on Ln3+ ions with multiplied f-f transitions.

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“…This allows obtaining unique luminescent properties and developing new optical materials operating in a wide spectral range. The glass systems are applied in light-emitting diodes, lasers, phosphors, or optical amplifiers [ 7 , 8 , 9 ]. In defining the spectroscopic properties of amorphous materials, a significant contribution is the composition of the glass matrices.…”

Section: Introductionmentioning

confidence: 99%

Transition Metals (Cr3+) and Lanthanides (Eu3+) in Inorganic Glasses with Extremely Different Glass-Formers B2O3 and GeO2

et al. 2021

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Glasses containing two different network-forming components and doped with optically active ions exhibit interesting properties. In this work, glass systems based on germanium dioxide and boron trioxide singly doped with lanthanides (Eu3+) and transition metals (Cr3+) ions are research subjects. Optical spectroscopy was the major research tool used to record excitation and emission spectra in a wide spectral range for studied systems. The emitted radiation of glasses doped with Cr3+ ions is dominated by broadband luminescence centered at 770 nm and 1050 nm (4T2 → 4A2). Interestingly, the increase of concentration of one of the oxides contributed to the detectable changes of the R-line (2E → 4A2) of Cr3+ ions. Moreover, EPR spectroscopy confirmed the paramagnetic properties of the obtained glasses. The influence of molar ratio GeO2:B2O3 on spectroscopic properties for Eu3+ ions is discussed. The intensity of luminescence bands due to transitions of trivalent europium ions as well as the ratio R/O decrease with the increase of B2O3. On the other hand, the increase in concentration B2O3 influences the increasing tendency of luminescence lifetimes for the 5D0 state of Eu3+ ions. The results will contribute to a better understanding of the role of the glass host and thus the prospects for new optical materials.

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Analysis of fluorescence characteristics of Sm3+-doped B2O3-rich glasses for Orange-light-emitting diodes

Cited by 42 publications

References 60 publications

S-Heptazine N-ligand based luminescent coordination materials: synthesis, structural and luminescent studies of lanthanide–cyamelurate networks

S-Heptazine N-ligand based luminescent coordination materials: synthesis, structural and luminescent studies of lanthanide–cyamelurate networks

Sm3+/Gd3+ Co-doped Lead/Bismuth Borogermanate Glasses – New Materials for Luminescent Thermometry

Transition Metals (Cr3+) and Lanthanides (Eu3+) in Inorganic Glasses with Extremely Different Glass-Formers B2O3 and GeO2

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