Annealing process dependence of the photoluminescence in rare-earth-ion-doped chalcogenide glass

Hachiya, Kan; Ohashi, Haruo

doi:10.1016/j.electacta.2007.01.034

Cited by 8 publications

(4 citation statements)

References 18 publications

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“…In the infrared spectral region, the vibration modes of the borate network have three regions. The first group of bands which occur at [15,16]. FTIR spectra (Fig.…”

Section: Resultsmentioning

confidence: 98%

Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses

Rudramadevi

Buddhudu

2009

Ferroelectrics Letters Section

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We report here on the spectral properties of RE 3+ (=Nd 3+ or Er 3+ ) doped B 2 O 3 -BaO-LiF (BBLi) glasses. Absorption spectrum of Nd 3+ : BBLi glass has exhibited seven absorption bands at 430 nm, 511 nm, 525 nm, 582 nm, 680 nm, 745 nm, and 802 nm which correspond to the electronic transitions of 4 I 9/2 → 2 P 1/2 , 4 I 9/2 → 4 G 9/2 , 4 I 9/2 → 4 G 7/2 , 4 I 9/2 → 4 G 5/2 , 4 I 9/2 → 4 F 9/2 , 4 I 9/2 → 4 F 7/2 and 4 I 9/2 → 4 F 5/2 respectively. From the Nd 3+ -glass, three emission bands have been measured at 902 nm ( 4 F 3/2 → 4 I 9/2 ), 1074 nm ( 4 F 3/2 → 4 I 11/2 ) and 1344 nm ( 4 F 3/2 → 4 I 13/2 ) with an excitation at 514.5 nm (Ar + ion laser). The Er 3+ glass, has revealed seven absorption bands at 450 nm, 487 nm, 520 nm, 542 nm, 651 nm, 978 nm and 1528 nm which are labelled to the transitions of 4 I 15/2 → 4 F 5/2 , 4 I 15/2 → 4 F 7/2 , 4 I 15/2 → 2 H 11/2 , 4 I 15/2 → 4 S 3/2 , 4 I 15/2 → 4 F 9/2 , 4 I 15/2 → 4 I 11/2 , and 4 I 15/2 → 4 I 13/2 respectively and for this glass, an emission at 1546 nm 4 I 13/2 → 4 I 15/2 has been observed with an excitation at 514.5 nm. Apart from this XRD, FTIR, TG-DTA studies have also been carried out to evaluate the structural properties of these optical glasses.

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“…In the infrared spectral region, the vibration modes of the borate network have three regions. The first group of bands which occur at [15,16]. FTIR spectra (Fig.…”

Section: Resultsmentioning

confidence: 98%

Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses

Rudramadevi

Buddhudu

2009

Ferroelectrics Letters Section

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“…The FTIR spectra (Figure 2) of the host glasses show the structure of vitreous borates to consist of a random network of BO 3 triangles with a certain fraction of boroxol (six membered) rings; but inclusion of the network modifiers, leads to formation of BO 4 tetrahedra in the borate glass network. In the infrared spectral region, the vibrational modes of borate networks show three regions [14][15][16]. In the first region, 1200-1600 cm -1 band is due to an asymmetric stretching relaxation of the B-O bond of trigonal BO 3 units, the band in the second region is located between 800 and 1200 cm -1 is due to the B-O bond stretching of tetrahedral BO 4 units and thirdly a band at 700 cm -1 is due to the bending of B-O-B linkages in the borate The values thus evaluated are found to be 0.81 and 0.95 for BBLi and BBAl glasses, respectively indicating that the relative fraction of BO 4 units could be more in the barium borate glass with Li + ions than with Al 3+ ions.…”

Section: Resultsmentioning

confidence: 99%

Emission analysis of RE3+ (Eu3+, Tb3+ & Ho3+): B2O3-BaO-LiF/AIF3 glasses

Rudramadevi

Buddhudu

2009

Indian J Phys

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We report here the luminescence spectra of certain rare earth ions (Eu 3+ , Tb 3+ & Ho 3+ ) doped B 2 O 3 -BaO-LiF/AiF 3 based on the measurements of emission and decay curves of prominent emission transitions. For both the reference host glasses, FTIR, XRD, DTA-TG profiles have been recorded to understand their structural and thermal properties. Eu 3+ doped glasses have shown five emission transitions of 5 D 0 → 7 F 01,2,3 & 4 located at 580nm, 593nm, 615nm, 655nm and 704nm respectively with an excitation at λ exci = 392 nm ( 7 F 0 → 5 L 6 ). Also under an UV source, these europium glasses have displayed a bright red emission from their surfaces. Tb 3+ glasses have exhibited four emission bands of 5 D 4 → 7 F 6,5,4,3 at 491nm, 547nm, 588nm and 625nm respectively with an excitation at λ exci = 376 nm ( 7 F 6 → 5 G 6 ). Intense green emission from the glass surfaces has been noticed upon exposure to the UV source. Prominently bluish-green emission has been noticed from the surfaces of the holmium glasses under an UV source and same emission transition ( 5 F 4 → 5 I 8 ) at 519 nm with an excitation at λ exci = 389 nm ( 5 I 8 -5 G 4 ) has also been obtained from their measured emission spectra. For all the prominent emissions of the rare earth glasses, decay curves have been measured to compute their lifetimes.

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“…44,45 These distinctive properties make rare earth materials suitable for applications in optical and magnetic elds, batteries, electrochemical sensor and catalysis supports. [46][47][48] Lanthanum hydroxide nanowires, as one of the important rareearth compounds, have attracted attention in the electrochemical analysis area. Their nanostructured morphology has good lm forming ability and can disperse these easily agglomerated components in a complex.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous determination of hydroquinone and catechol using an electrode modified by a composite of graphene/lanthanum hydroxide nanowires

Guo

Yin

et al. 2014

Anal. Methods

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Annealing process dependence of the photoluminescence in rare-earth-ion-doped chalcogenide glass

Cited by 8 publications

References 18 publications

Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses

Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses

Emission analysis of RE3+ (Eu3+, Tb3+ & Ho3+): B2O3-BaO-LiF/AIF3 glasses

Simultaneous determination of hydroquinone and catechol using an electrode modified by a composite of graphene/lanthanum hydroxide nanowires

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Annealing process dependence of the photoluminescence in rare-earth-ion-doped chalcogenide glass

Cited by 8 publications

References 18 publications

Spectral Characterization of RE3 +(= Nd3 +or Er3 +): B2O3-BaO-LiF Glasses

Spectral Characterization of RE3 +(= Nd3 +or Er3 +): B2O3-BaO-LiF Glasses

Emission analysis of RE3+ (Eu3+, Tb3+ & Ho3+): B2O3-BaO-LiF/AIF3 glasses

Simultaneous determination of hydroquinone and catechol using an electrode modified by a composite of graphene/lanthanum hydroxide nanowires

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Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses

Spectral Characterization of RE^{3 +}(= Nd^{3 +}or Er^{3 +}): B₂O₃-BaO-LiF Glasses