X-ray excited luminescence of some molybdates

Mikhrin, S. B.; Mishin, Alexander N.; Потапов, А. С.; Родный, П. А.; Voloshinovskii, А.

doi:10.1016/s0168-9002(02)00722-2

Cited by 61 publications

(17 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The PL spectrum was obtained at an excitation of 240 nm. Most studies on the PL of CaMoO 4 crystals at room temperature have reported a green emission near 530 nm for excitations between 240 and 280 nm [21][22][23]. Consistent with the widened optical band-gap estimated from the Tauc plot in Fig.…”

Section: Article In Presssupporting

confidence: 84%

Synthesis of nanoparticles by pulsed laser ablation in deionized water and optical properties

Ryu

Choi

Yoon

et al. 2007

Journal of Luminescence

View full text Add to dashboard Cite

Section: Article In Presssupporting

confidence: 84%

Synthesis of nanoparticles by pulsed laser ablation in deionized water and optical properties

Ryu

Choi

Yoon

et al. 2007

Journal of Luminescence

View full text Add to dashboard Cite

“…Most PL studies of CaMoO 4 crystals at room temperature reported green emission near 530 nm for excitation between 240 and 280 nm. [21][22][23] Consistent with the widened optical band-gap estimated from the Tauc plot in Fig. 4(a), the colloidal suspension exhibited a blue-shifted broad emission peak near 430 nm.…”

Section: Resultssupporting

confidence: 82%

Laser-Induced Synthesis of CaMoO<SUB>4</SUB> Nanocolloidal Suspension and Its Optical Properties

2011

View full text Add to dashboard Cite

Pulsed laser ablation in a liquid phase was employed successfully to synthesize a calcium molybdate (CaMoO 4 ) nanocolloidal suspension. The crystalline phase, particle morphology, particle size distribution, absorbance, optical band-gap and photoluminescence (PL) were examined. Stable colloidal suspensions consisting of well-dispersed CaMoO 4 nanoparticles with a narrow size distribution could be obtained without a surfactant. The optical absorption edge located near 270 nm was blue-shifted by approximately 70 nm compared to that reported for bulk crystals. The estimated optical energy band-gap was 4.7 eV and the PL spectrum was blue-shifted at approximately 430 nm compared to the emission of bulk CaMoO 4 target (525 nm). The observed band-gap widening and blue-shift of PL emission was attributed to the quantum-size effect due to the very small size of the CaMoO 4 nanoparticles prepared by pulsed laser ablation in deionized water.

show abstract

“…It has attracted particular interest as host for lanthanide-active lasers as well as scintillator and photocatalytic material. [1][2][3] SrMoO 4 crystallizes in the so-called scheelite structure (scheelite ¼ CaWO 4 ), 4 which belongs to the tetragonal space group (SG) I4 1 /a. The scheelite structure of SrMoO 4 is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Compression of scheelite-type SrMoO4 under quasi-hydrostatic conditions: Redefining the high-pressure structural sequence

Errandonea

Gracia

Lacomba-Perales

et al. 2013

Journal of Applied Physics

View full text Add to dashboard Cite

The high-pressure behavior of tetragonal SrMoO 4 was analyzed by Raman and optical-absorption measurements. Pressures up to 46.1 GPa were generated using diamond-anvil cells and Ne or N 2 as quasi-hydrostatic pressure-transmitting media. A reversible phase transition is observed at 17.7 GPa. A second transition is found at 28.8 GPa and the onset of a third one at 44.2 GPa. The pressure dependence of Raman-active modes is reported for the different phases and the pressure evolution of the fundamental band-gap reported for the low-pressure phase. The observed changes in the Raman spectra contradict the structural sequence determined from previous experiments performed under higher non-hydrostaticity. This fact suggests that deviatoric stresses can influence pressure-driven transitions in scheelite-type oxides. We also report total-energy, lattice-dynamics, and band-structure calculations. They reproduce accurately the behavior of the physical properties of the low-pressure phase and predict the occurrence of phase transitions at pressures similar to experimental transition pressures. According to theory, the high-pressure phases have monoclinic and orthorhombic structures, which are much more compact than tetragonal scheelite. Theoretical results and experiments are compared with previous studies. V C 2013 American Institute of Physics.

show abstract

X-ray excited luminescence of some molybdates

Cited by 61 publications

References 4 publications

Synthesis of nanoparticles by pulsed laser ablation in deionized water and optical properties

Synthesis of nanoparticles by pulsed laser ablation in deionized water and optical properties

Laser-Induced Synthesis of CaMoO<SUB>4</SUB> Nanocolloidal Suspension and Its Optical Properties

Compression of scheelite-type SrMoO4 under quasi-hydrostatic conditions: Redefining the high-pressure structural sequence

Contact Info

Product

Resources

About