Optical absorption and photoluminescence in Sm3+- and Eu3+-doped rare-earth borate glasses

Lin, Hai; Yang, Dan; Liu, Guishan; Ma, Tengfei; Zhai, Bin; An, Qingda; Yu, J.Y.; Wang, Xiaojun; Liu, Xingren; Pun, Edwin Yue-Bun

doi:10.1016/j.jlumin.2004.09.115

Cited by 188 publications

(80 citation statements)

References 31 publications

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“…Thus, the emission and luminescence excitation spectra also testify that the europium impurity is incorporated in the Li 2 ions. This agrees well with the data known for the Eu-doped lithium tetraborate crystal [22], the lithium tetraborate glass [31], the lithium borate glasses [20,23,43] and the other borate glasses [24,44,45]. However, the above result does not correlate with the findings for the Eu-doped Li 2 B 4 O 7 [31] and SrB 4 O 7 [29] crystals, the lithium borate glasses [21] and some other borate glasses [28,30].…”

Section: Optical Spectra and Luminescence Kinetics Of The Eu-doped Bosupporting

confidence: 83%

Optical spectroscopy of Li2B4O7, CaB4O7 and LiCaBO3 borate glasses doped with europium

Padlyak¹,

Kindrat²,

Protsiuk³

et al. 2014

Ukr. J. Phys. Opt.

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Section: Optical Spectra and Luminescence Kinetics Of The Eu-doped Bosupporting

confidence: 83%

Optical spectroscopy of Li2B4O7, CaB4O7 and LiCaBO3 borate glasses doped with europium

Padlyak¹,

Kindrat²,

Protsiuk³

et al. 2014

Ukr. J. Phys. Opt.

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“…However the high phonon energy of borate is not detrimental to Sm 3+ and Eu 3+ normal 4f transition, and sometimes it can accel-erate the relaxation processes, which is necessary and beneficial for visible emission [9]. It is known that the type of network modifier ion(s) affects the local environment around the fluorescent ion and therefore its optical properties.…”

Section: +mentioning

confidence: 99%

Electrical, dielectric and structural properties of borovanadate glass systems doped with samarium oxide

Graça

Fawzy

Badr

et al. 2011

Phys. Status Solidi C

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Glasses doped with rare earth (RE) ions are widely studied due to the numerous applications of these systems (active media for solid state lasers, optical telecommunication, non‐linear optical materials, electro‐optic devices, etc.). Boron trioxide, B2O3, is a known glass forming oxide with a relative low melting temperature. The addition of a transition metal oxide, such as V2O5, promotes the exhibition of semiconducting properties making these promising systems for several technological applications, such that ones involved in solar energy conversion devices. It is known that alkali borovanadate glasses, like alkali borate glasses themselves, are ionically conducting materials. Despite their importance there are only few studies on these glasses reported on literature. Thus, the alkali‐borovanadate glass system constitutes a family with high interest from the electrical and dielectric point of view. The effect of the increment of alkali quantity in the electrical and dielectric response of these glasses and the physical/structural explanation are questions which will be addressed. In this work, the transparent glass samples with molar composition 0.01Sm2O3‐0.99[0.85B2O3‐(0.15‐x)Li2O‐xV2O5] with x = 0, 0.1, 0.2, 0.35, 0.5 and 2 (mol%) were prepared by conventional melting technique. The prepared samples were fully characterized using different experimental techniques such as, differential thermal analysis (DTA), X‐ray diffraction (XRD), electrical and dielectric measurements. The samples structure, electrical and dielectric properties as a function of vanadium ions content was explored and discussed (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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“…No It is well known that the energy transfer occurs unless the energy gap of the donor is equal to that of the acceptor in resonance condition. The emission band centered at 400 nm of SnO 2 nanocrystals in the SiO 2 gel which is ascribed to the electron transition mediated by defect levels [12] overlaps the dominating absorption line at 404 nm of Sm 3+ ions [13]. Therefore, it is possible that the energy transfers from SnO 2 nanocrystals to Sm 3+ ions.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of Sm3+emission by SnO2nanocrystals in the silica matrix

Liu

Kang

2007

Nanoscale Res Lett

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Silica xerogels containing Sm 3+ ions and SnO 2 nanocrystals were prepared in a sol-gel process. The image of transmission electron microscopy (TEM) shows that the SnO 2 nanocrystals are dispersed in the silica matrix. The X-ray diffraction (XRD) of the sample confirms the tetragonal phase of SnO 2 . The xerogels containing SnO 2 nanocrystals and Sm 3+ ions display the characteristic emission of Sm 3+ ions ( 4 G 5/2 fi 6 H J (J = 5/2, 7/2, 9/2)) at the excitation of 335 nm which energy corresponds to the energy gap of the SnO 2 nanocrystals, while no emission of Sm 3+ ions can be observed for the samples containing Sm 3+ ions. The enhancement of the Sm 3+ emission is probably due to the energy transfer from SnO 2 nanocrystals to Sm 3+ ions.

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Optical absorption and photoluminescence in Sm3+- and Eu3+-doped rare-earth borate glasses

Cited by 188 publications

References 31 publications

Optical spectroscopy of Li2B4O7, CaB4O7 and LiCaBO3 borate glasses doped with europium

Optical spectroscopy of Li2B4O7, CaB4O7 and LiCaBO3 borate glasses doped with europium

Electrical, dielectric and structural properties of borovanadate glass systems doped with samarium oxide

Enhancement of Sm3+emission by SnO2nanocrystals in the silica matrix

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