Pulsed cathodoluminescence of yttrium-aluminum garnet in the visible spectral range

Rasuleva, A. V.; Solomonov, V. I.

doi:10.1134/s1054660x06010129

Cited by 6 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…21 In 2006, Rasuleva and Solomonov studied Cr 3+ or Nd 3+ co-doped YAG:Ce crystals and investigated their pulsed cathodoluminescence in the visible range. 22 In 2009, Nizhankovsky et al studied the cathodoluminescence properties and scintillation characteristics of YAG:Ce single crystals. 23 However, reports for the enhanced cathodoluminescence intensity of YAG are rarely available; thus, it is extremely signicant if the cathodoluminescence intensity of YAG:Ce can be enhanced and used as an efficient phosphor to improve the display quality of FEDs.…”

Section: Introductionmentioning

confidence: 99%

A new type of color tunable composite phosphor Y2SiO5:Ce/Y3Al5O12:Ce for field emission displays

Zhu

Wang

et al. 2013

J. Mater. Chem. C

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

A new type of color tunable composite phosphor Y2SiO5:Ce/Y3Al5O12:Ce for field emission displays

Zhu

Wang

et al. 2013

J. Mater. Chem. C

View full text Add to dashboard Cite

“…We have chosen terephthalic acid ( H 2 BDC ) which has been used extensively as an organic spacer, and its extended analogue biphenyl-4,4′-dicarboxylic acid ( H 2 biBDC ), because these rigid ligands (i) are able to establish a bridge between metal centers, affording frameworks with large pores, − and (ii) may enhance the fluorescence of the Ln(III) ions, via the so-called antenna effect. , The combination of this mixed-ligand system with rare-earth ions, such as the small Y(III), allows the synthesis of unusual coordination polymers with interesting properties. The yttrium coordination polymers are relatively limited compared with the f-block metal ions, although yttrium is widely used in laser crystals, − and superconductive materials. − …”

Section: Introductionmentioning

confidence: 99%

Metal Organic Frameworks Assembled from Y(III), Na(I), and Chiral Flexible-Achiral Rigid Dicarboxylates

Amghouz¹,

Roces²,

García-Granda³

et al. 2010

Inorg. Chem.

View full text Add to dashboard Cite

New chiral metal organic frameworks, assembled from Y(III), Na(I), and chiral flexible-achiral rigid dicarboxylate ligands, formulated as [NaY(Tart)(BDC)(H(2)O)(2)] (1) and [NaY(Tart)(biBDC)(H(2)O)(2)] (2) (H(2)Tart = Tartaric acid; H(2)BDC = Terephthalic acid; H(2)biBDC = Biphenyl-4,4'-dicarboxylic acid), were obtained as single phases under hydrothermal conditions. Their structures were solved by single-crystal X-ray diffraction (XRD), and characterized by (13)C CPMAS NMR, thermal analyses (thermogravimetry-mass spectrometry (TG-MS) and differential scanning calorimetry (DSC)), and X-ray thermodiffractometry. Both compounds crystallize in the orthorhombic chiral space group C222(1) with a = 6.8854(2) A, b = 30.3859(7) A, c = 7.4741(2) A for 1, and a = 6.8531(2) A, b = 39.0426(8) A, c = 7.4976(2) A for 2. 1 and 2 are layered structures whose three-dimensional stability is ensured by strong hydrogen bond interactions. The dehydration of both compounds is accompanied by phase transformation, while the spontaneous rehydration process is characterized by different kinetics, fast in the case of 1 and slow for 2.

show abstract

“…For the YAG:Er 3+ single crystal, the emission spectra measured in the above range of the electron-beam excitation power (Fig. 1a) coincide with the cathodoluminescence (CL) spectra [17][18][19][20].…”

mentioning

confidence: 99%

Cathodoluminescence and selective emission of Er3+ in oxides

2008

View full text Add to dashboard Cite

Abstract-The dependence of the Er 3+ cathodoluminescence and selective emission on the power of the YAG:Er 3+ and Er 2 O 3 excitation by an electron beam is spectroscopically studied for applications in high-intensity radiation sources of the visible and near-IR spectral ranges. PACS numbers: 78.60. Hk, 44.40.+a, 07.57.Kp, 78.30 and the cross relaxation [4][5][6]. A relatively high SE integral intensity in the visible and near-IR spectral ranges has been realized upon the laser thermal excitation of Er 2 O 3 at a wavelength of 10.6 µm [6]. The resonant optical pumping of the active media activated with rare-earth ions causes an increase in the laser efficiency for the visible and near-IR spectral ranges [7][8][9][10][11][12]. This accounts for the interest in the development of the thermophoto-lasers (TPLs) [6,13,14] whose laser elements are pumped by the thermally non-equilibrium SE [15]. The electron-beam excited SE of the rare-earth oxides can be another variant of the optical pumping.(ii) In this work, we experimentally study the dependence of the emission spectra and intensity of YAG:Er and Er 2 O 3 polycrystalline samples are synthesized using the melting of powders irradiated with a CO 2 laser at a radiation power of about 100 W and a wavelength of 10.6 µm on a substrate made of single-crystal silicon. The dispersed oxides are produced using the crushing and grinding of the single-crystalline and polycrystalline powders in a mortar.The electron-beam excited emission spectra of the oxides I(λ) ~ n(λ)/∆λ (n(λ) is the number of photons in the spectral interval ∆λ) are measured using an FSD-6 diffraction spectrometer with a fiber-optic input directed at a certain angle relative to the electron-irradiated oxide target. The measurements are performed in the sensitivity spectral range (300-900 nm) of a semiconductor detector array with the resolution ∆λ = 10 nm. The normal scan duration is 40 ms, and the number of scans is about 10. Using computer processing, we perform the correction of the measured emission spectra with regard to the spectral sensitivity of the array, the smoothing of the noisy spectra, and the intensity normalization needed for the curve plotting. Integralspectral intensity I Σ , which is proportional to the total number of photons in the sensitivity spectral range, is calculated for the spectral series measured at the given experimental configuration [6].(iii) The typical dependences of the normalized emission spectra I n (λ) = I(λ)/I max (λ) of the YAG:Er 3+ single crystal, crystalline powder, and polycrystal and the Er 2 O 3 powder on the electron-beam excitation power P = iU are presented in Fig. 1. Table 1 shows the discharge-tube voltages U and currents i. On the plots, the spectrum numbers correspond to the column numbers in the first row and the terms of the electronic states involved in the radiative transitions to the ground state are denoted in accordance with the

show abstract

Pulsed cathodoluminescence of yttrium-aluminum garnet in the visible spectral range

Cited by 6 publications

References 13 publications

A new type of color tunable composite phosphor Y2SiO5:Ce/Y3Al5O12:Ce for field emission displays

A new type of color tunable composite phosphor Y2SiO5:Ce/Y3Al5O12:Ce for field emission displays

Metal Organic Frameworks Assembled from Y(III), Na(I), and Chiral Flexible-Achiral Rigid Dicarboxylates

Cathodoluminescence and selective emission of Er3+ in oxides

Contact Info

Product

Resources

About