Novel porous CaSnO3:Eu3+ and Ca2SnO4:Eu3+ phosphors by co-precipitation synthesis and postannealing approach: A general route to alkaline-earth stannates

Chen, Xiang Ying; Ma, Chao; Bao, Shi; Zhang, Hai Yan

doi:10.1016/j.jallcom.2010.03.065

Cited by 35 publications

(12 citation statements)

References 19 publications

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“…Calcium stannate, CaSnO 3 , is known as an effective phosphorous host [9][10][11][12][13][14][15][16][17][18][19][20], for its potential as constituent of multifunctional optoelectronic devices [21], and for its unconventional luminescent behavior [22][23][24]. At ambient conditions, CaSnO 3 exhibits a orthorhombic GdFeO 3 -type perovskite structure belonging to the P bnm space group, which is expected to be stable up to pressures of about 40 GPa and temperatures of about 2000 K [25].…”

Section: Introductionmentioning

confidence: 99%

Thermal properties of the orthorhombic CaSnO3 perovskite under pressure from ab initio quasi-harmonic calculations

2016

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Structural, elastic and thermodynamic properties of the orthorhombic CaSnO 3 perovskite are theoretically investigated at the ab initio level as a function of temperature and pressure. Harmonic and quasiharmonic lattice dynamical calculations are performed with the Crystal program, by explicitly accounting for thermal expansion effects and by exploring the effect of several DFT functionals. The anisotropic, directional elastic response of the system is characterized up to 20 GPa of pressure. The thermal lattice expansion and elastic bulk modulus are described at simultaneous temperatures up to 2000 K and pressures up to 20 GPa. The Gibbs free energy of formation of CaSnO 3 from CaO and SnO 2 as a function of temperature is also addressed by means of fully-converged phonon dispersion calculations on the three systems.

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Section: Introductionmentioning

confidence: 99%

Thermal properties of the orthorhombic CaSnO3 perovskite under pressure from ab initio quasi-harmonic calculations

2016

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“…[8][9][10][11][12][13][14][15][16] At ambient conditions, calcium stannate is a GdFeO 3type perovskite with an orthorhombic lattice characterized by the Pbnm space group and a structure which can be rationalized in terms of a framework of corner-sharing SnO 6 octahedra (see Figure 1). With respect to the ideal cubic structure, Pm3m, of many ABO 3 perovskites, SnO 6 octahedra are slightly tilted and distorted.…”

Section: Introductionmentioning

confidence: 99%

In silico infrared and Raman spectroscopy under pressure: The case of CaSnO3 perovskite

Maul

Erba

Santos

et al. 2015

The Journal of Chemical Physics

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The CaSnO3 perovskite is investigated under geochemical pressure, up to 25 GPa, by means of periodic ab initio calculations performed at B3LYP level with local Gaussian-type orbital basis sets. Structural, elastic, and spectroscopic (phonon wave-numbers, infrared and Raman intensities) properties are fully characterized and discussed. The evolution of the Raman spectrum of CaSnO3 under pressure is reported to remarkably agree with a recent experimental determination [J. Kung, Y. J. Lin, and C. M. Lin, J. Chem. Phys. 135, 224507 (2011)] as regards both wave-number shifts and intensity changes. All phonon modes are symmetry-labeled and bands assigned. The single-crystal total spectrum is symmetry-decomposed into the six directional spectra related to the components of the polarizability tensor. The infrared spectrum at increasing pressure is reported for the first time and its main features discussed. All calculations are performed using the Crystal14 program, taking advantage of the new implementation of analytical infrared and Raman intensities for crystalline materials.

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“…This is due to direct energy transfer from CTS to the 5 D 1,0 energy states, which allows the CTS band to feed directly to the lower energy states of 5 D 1,0 . In contrast to the CTS band, 4f electrons are well shielded from the surroundings by filled 5s and 5p orbitals [26][27][28], so the influence of the energy transfer for f-f transition is too weak to be considered. Therefore, the 5 D 1,0 state transition is more effective than the 5 D 3,2 transition under CTS excitation [29].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and photoluminescence properties of color-tunable BaLa2WO7:Eu3+ phosphor

Yan

Chang

Hwang

et al. 2011

Journal of Alloys and Compounds

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Novel porous CaSnO3:Eu3+ and Ca2SnO4:Eu3+ phosphors by co-precipitation synthesis and postannealing approach: A general route to alkaline-earth stannates

Cited by 35 publications

References 19 publications

Thermal properties of the orthorhombic CaSnO3 perovskite under pressure from ab initio quasi-harmonic calculations

Thermal properties of the orthorhombic CaSnO3 perovskite under pressure from ab initio quasi-harmonic calculations

In silico infrared and Raman spectroscopy under pressure: The case of CaSnO3 perovskite

Synthesis and photoluminescence properties of color-tunable BaLa2WO7:Eu3+ phosphor

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