Spectroscopic properties of Dy3+ ions in CaTiO3 nano-perovskites

Lemański, K.

doi:10.1016/j.jlumin.2013.08.048

Cited by 22 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The interest in rare-earth-doped nanoperovskites is based on the fact that the chemistry and optical spectroscopy of the analogous perovskite bulk crystals are well-known, opening the possibility to establish meaningful comparisons between the properties of the nanosized and bulk materials. In this regard, several works focused on studies of the properties of rare-earth-doped nanoperovskites have been carried out. − Among interesting applications of nanoperovskites, we can cite their use as optical thermal sensors, − , CO sensors, and single photon emitters …”

Section: Introductionmentioning

confidence: 99%

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

et al. 2017

View full text Add to dashboard Cite

The structural and vibrational properties of nanocrystalline yttrium orthoaluminate perovskite (YAlO 3 ) under compression have been experimentally studied. Experimental results have been compared to ab initio simulations of bulk YAlO 3 in the framework of the density functional theory. Furthermore, they have been complemented with an ab initio study of its elastic properties at different pressures. Calculated total and partial phonon density of states have allowed us to understand the contribution of the different atoms and structural units, YO 12 dodecahedra and AlO 6 octahedra, to the vibrational modes. The calculated infrared-active modes and their pressure dependence are also reported. Finally, the pressure dependences of the elastic constants and the mechanical stability of the perovskite structure have been analyzed in detail, showing that this phase is mechanically stable until 92 GPa. In fact, experimental results up to 30 GPa show no evidence of any phase transition. A previously proposed possible phase transition in YAlO 3 above 80 GPa is also discussed.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The luminescence property of rare earth ions depends mainly on the electronic level structure of the chemical environments due to the effective shielding of the 4f electrons by the filled 5s or 5p external shells . Out of all the different rare earth ions, trivalent dysprosium ions are excellent activators for phosphor materials to obtain white light luminescence . The Dy 3+ ion shows two main luminescence bands in the emission spectrum, a yellow band corresponding to 4 F 9/2 → 6 H 13/2 and a blue band corresponding to 4 F 9/2 → 6 H 15/2 .…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and photoluminescence characterization of Dy³⁺ in Sr_0.5Ca_0.5TiO₃ phosphor

et al. 2015

View full text Add to dashboard Cite

The spectroscopic and photoluminescence characteristics of trivalent dysprosium (Dy(3+))-doped Sr0.5Ca0.5TiO3 phosphor materials synthesized via solid-state reaction method were studied. The X-ray diffraction profile confirmed the orthorhombic perovskite structure of the prepared samples. Judd-Ofelt analysis was carried out to obtain the intensity parameters and predicted radiative properties of Sr0.5Ca0.5TiO3:2wt%Dy(3+). The photoluminescence spectrum of Dy(3+)-doped Sr0.5Ca0.5TiO3 showed three emission peaks at 481, 574 and 638 nm corresponding to (4)F9/2 →(6)H15/2, (4)F9/2 →(6)H13/2 and (4)F9/2 →(6)H11/2 transitions respectively. The variation of luminescence intensity with different excitation wavelengths and Dy(3+) concentrations is discussed. The decay profiles of (4)F9/2 excited levels of Dy(3+) ions show bi-exponential behaviour and also a decrease in average lifetime with increase in Dy(3+) concentration. Yellow to blue luminescence intensity ratio, CIE chromaticity co-ordinates and correlated color temperature were also calculated for different concentrations of Dy(3+)-doped Sr0.5Ca0.5TiO3 phosphor at different λex.

show abstract

Study of TL kinetic parameters of UV and γ rays irradiated ATiO3:Eu2+, Yb2+ (A = Ca, Ba, Sr) phosphors

Katyayan

Agrawal

2019

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Spectroscopic properties of Dy3+ ions in CaTiO3 nano-perovskites

Cited by 22 publications

References 14 publications

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

Spectroscopic and photoluminescence characterization of Dy³⁺ in Sr_0.5Ca_0.5TiO₃ phosphor

Study of TL kinetic parameters of UV and γ rays irradiated ATiO3:Eu2+, Yb2+ (A = Ca, Ba, Sr) phosphors

Contact Info

Product

Resources

About

Spectroscopic properties of Dy3+ ions in CaTiO3 nano-perovskites

Cited by 22 publications

References 14 publications

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

Structural, Vibrational, and Elastic Properties of Yttrium Orthoaluminate Nanoperovskite at High Pressures

Spectroscopic and photoluminescence characterization of Dy3+ in Sr0.5Ca0.5TiO3 phosphor

Study of TL kinetic parameters of UV and γ rays irradiated ATiO3:Eu2+, Yb2+ (A = Ca, Ba, Sr) phosphors

Contact Info

Product

Resources

About

Spectroscopic and photoluminescence characterization of Dy³⁺ in Sr_0.5Ca_0.5TiO₃ phosphor