Concentration effect of Er3+ ion on the spectroscopic properties of Er3+ and Yb3+/Er3+ co-doped phosphate glasses

Desirena, H.; Rosa, E. De la; Dı́az-Torres, L.A.; Kumar, Gaurav

doi:10.1016/j.optmat.2005.04.002

Cited by 124 publications

(48 citation statements)

References 18 publications

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“…Compared to the other phosphate and Lead containing germinate glasses [29,30], the present system has not shown any significant change in the life time values between concentrations 1 to 4 wt% (inset Fig2B), which is a favorable result for having minimal concentration quenching.…”

Section: Resultsmentioning

confidence: 58%

Optical properties of Er3+ doped alkali chlorophosphate glasses for optical amplifiers

et al. 2008

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Section: Resultsmentioning

confidence: 58%

Optical properties of Er3+ doped alkali chlorophosphate glasses for optical amplifiers

et al. 2008

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“…and O 2− ions, and they increase when the covalency decreases [21,26] . In addition, the covalency between Er…”

Section: +mentioning

confidence: 99%

“…The Judd-Ofelt theory is used to calculate the J-O intensity parameters (Ω 2,4,6 ) from the measured absorption spectrum [22,23] . The odd-symmetry crystal field terms of the glass host could influence the radioactive transition probabilities [21] , and some structure information of the crystal field terms can be obtained from the comparison of the J-O parameters. The calculated results are shown in Fig.…”

Section: −mentioning

confidence: 99%

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Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass

Ding¹,

Chen²,

Chen³

et al. 2012

Chin. Opt. Lett.

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The structural and spectroscopic properties of Na 2 O-Al 2 O 3 -SiO 2 -xP 2 O 5 glasses (x = 0 to 7 mol%) are investigated. Both Raman and IR spectra reveal that discrete phosphate species ([PO 4 ] −3 , [PO 3 O 1/2 ] −2 ) with low polymerization degree can be formed in the silicate glass. These phosphate structures scavenge non-bridging oxygen ions and cations from the silicate network, resulting in an increase of the glass transition temperature. According to the Judd-Ofelt intensity parameters (Ω2,Ω4,Ω6) of Er 3+ , the asymmetry of local environment around Er 3+ becomes higher, and the bond covalency between Er 3+ and O 2− decreases after P2O5 is introduced. In the emission spectra, photoluminescence intensity increases with increasing P2O5 concentration and the spectra are inhomogeneously broadened, revealing that the ligand electric field around Er 3+ is dramatically changed, and the glass matrix becomes disordered. OCIS codes: 160.2750, 160.5960. doi: 10.3788/COL201210.071602. Recently, phosphosilicate glass has gained considerable attention due to its applications in multiwavelength fiber laser and rare earth (RE) ion-doped optical glass fibers [1−4] . The addition of P 2 O 5 improves the quantum efficiency of RE radioactive transitions [5−7] , and the addition of phosphate also highly limits photo-darkening due to the formation of color centers [8,9] . In phosphosilicate glass research, the solubility of P 2 O 5 in the silicate matrix is an inevitable problem [10] ; moreover, the existence species of phosphate and their interaction with silicate network can greatly influence the structural and spectroscopic properties of the glass. To our knowledge, previous studies focus only on the phosphorous speciation changes in phosphosilicate glasses [11,12] . Few reports mention the host environment around the doped RE ions, the effect of phosphate addition on the emission spectrum, or the inner correlation between spectroscopic properties and the local structure.In this letter, various amounts of P 2 O 5 are introduced into the sodium aluminosilicate glass. The structural evolution induced by the addition of P 2 O 5 is investigated based on Raman and infrared (IR) absorption spectra. Er 3+ ions are added into the glass to investigate the environment of RE ions in our phosphosilicate glasses. With the absorption and emission spectroscopic analysis, the relationship between the glass structure and the spectroscopic properties is discussed.A series of sodium aluminosilicate glass samples with the composition of 30Na 2 O-5Al 2 O 3 -(65-x)SiO 2 -xP 2 O 5 -yEr 2 O 3 (x =0, 1, 3, 5, and 7 mol%, y=0 and 0.75 mol%) were prepared by melt-quenching method. Analytical reagent grade powders of Na 2 CO 3 , Al(OH) 3 , Al(PO 3 ) 3 , SiO 2 , and 99.99% high purity powders of Er 2 O 3 were used as raw materials. Then, 50 g of well-mixed powders were melted in platinum crucible for 60 min in the temperature of 1 450• C. The melt was quenched on a preheated steel plate and then annealed for 3 h at the temperature of 560 • C. ...

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“…Special interest lies in multifunctional semiconductors which can be made efficient light emitters with tailored light emitting properties with appropriate doping of lanthanide ions. Among semiconductors, excellent optical and electrical properties of ZnO nanocrystals with a direct band gap (3.37 eV) makes it a promising host material for both RE ions as well as transition-metal ions to obtain efficient luminescent properties for applications in photovoltaic, opto-electronic and magnetic memory devices [8][9][10][11][12][13][14][15][16][17]. However, intensive research focus has been made in down conversion (DC) luminescence properties [18][19][20] and very few work has been reported on UC luminescence of ZnO doped with RE dopants like Er 3?…”

Section: Introductionmentioning

confidence: 99%

Dual mode luminescence in rare earth (Er3+/Ho3+) doped ZnO nanoparticles fabricated by inclusive co precipitation technique

Das

Khichar

Chawla

2015

J Mater Sci: Mater Electron

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Dual excitation properties have been introduced in ZnO nanoparticles (*10 nm) through lanthanide (Er 3? /Ho 3? ) doping by inclusive co precipitation at room temperature. Monophasic hexagonal ZnO nanoparticles form hierarchical micro flowers as a consequence of lanthanide doping. The Stokes and anti Stokes emissions were investigated under UV (399 nm) and IR (980 nm) excitation. The down-conversion emission under band edge excitation is in the blue region and the up-conversion (UC) emission of lanthanide doped ZnO nanocrystals exhibit strong green and red fluorescence bands for ZnO:Er 3? and only green band for ZnO:Ho 3? . Post synthesis annealing further improves luminescence properties in ZnO:Er 3? that exhibits triple mode excitation of fluorescence under UV as well as IR wavelengths 980 and 1550 nm, also confirmed by confocal fluorescence mapping. The measured dependence of pump power on UC emission suggest that lanthanide doping in ZnO leads to frequency up-conversion emission via two to three photon absorption processes.

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Concentration effect of Er3+ ion on the spectroscopic properties of Er3+ and Yb3+/Er3+ co-doped phosphate glasses

Cited by 124 publications

References 18 publications

Optical properties of Er3+ doped alkali chlorophosphate glasses for optical amplifiers

Optical properties of Er3+ doped alkali chlorophosphate glasses for optical amplifiers

Effect of P2O5 addition on the structural and spectroscopic properties of sodium aluminosilicate glass

Dual mode luminescence in rare earth (Er3+/Ho3+) doped ZnO nanoparticles fabricated by inclusive co precipitation technique

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