Optical Spectroscopy of f-Element Compounds

Carnall, W. T.

doi:10.1007/978-94-009-9454-6_9

Cited by 5 publications

(4 citation statements)

References 40 publications

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“…For that, the reduced matrix element was used for the emission spectra [48,49]. Thus, Ω λ (λ = 2, 4 and 6) parameters can be evaluated separately from the emission transitions of the 4 G 5/2 → 6 H J (J = 5/2, 7/2, 9/2) transitions.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Gurushantha¹,

Anantharaju

Sharma³

et al. 2016

Journal of Alloys and Compounds

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Section: Accepted Manuscriptmentioning

confidence: 99%

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Gurushantha¹,

Anantharaju

Sharma³

et al. 2016

Journal of Alloys and Compounds

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“…The free-ion energy levels and crystal-field splittings of rare earth ions in 4f N and other excited configurations can be calculated using a standard theoretical framework developed by Crosswithe, Carnall and others. [15][16][17] At the same time, experimental and theoretical studies on optical properties have accomplished fundamental understanding of the intensities of electronic transitions, non-radiative relaxation and energy transfer processes that determine photon upconversion performance. Comprehensive reviews have been given on these topics.…”

Section: Introductionmentioning

confidence: 99%

“…The freeion energy levels and crystal-field splittings of rare earth ions in 4f N and other excited configurations can be calculated using a standard theoretical framework developed by Crosswhite, Carnall and others. [15][16][17] At the same time, experimental and Chemical Science and Engineering Division, Argonne National Laboratory, Argonne, IL 60439, USA. E-mail: gkliu@anl.gov…”

Section: Introductionmentioning

confidence: 99%

Advances in the theoretical understanding of photon upconversion in rare-earth activated nanophosphors

2015

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Photon upconversion in rare earth activated phosphors involves multiple mechanisms of electronic transitions. Stepwise optical excitation, energy transfer, and various nonlinear and collective light-matter interaction processes act together to convert low-energy photons into short-wavelength light emission. Upconversion luminescence from nanomaterials exhibits additional size and surface dependencies. A fundamental understanding of the overall performance of an upconversion system requires basic theories on the spectroscopic properties of solids containing rare earth ions. This review article surveys the recent progress in the theoretical interpretations of the spectroscopic characteristics and luminescence dynamics of photon upconversion in rare earth activated phosphors. The primary aspects of upconversion processes, including energy level splitting, transition probability, line broadening, non-radiative relaxation and energy transfer, are covered with an emphasis on interpreting experimental observations. Theoretical models and methods for analyzing nano-phenomena in upconversion are introduced with detailed discussions on recently reported experimental results.

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“…PrGaO 3 (PGO) belongs to an orthorhombically distorted GdFeO 3 -type structure with space group Pbnm at ambient temperatures. Their studies draw special interest towards rare-earth perovskite oxides, where the rare-earth elements play an important role in display technology due to their transitions falling in the visible region as they consist of empty d and f-orbitals [31][32]. It has been reported in the previous studies [25][26][27][28], that strontium and magnesium doped LaGaO 3 , NdGaO 3 and PGO shows high oxygen ion conductivity in the temperature range of 870-1070 K, and are considered as prospective solid electrolytes for its use in the solid oxide fuel cells (SOFCs).…”

Section: Introductionmentioning

confidence: 99%

Electronic, optical and thermoelectric properties of PrMO₃ (M = Al, Ga, In) from first-principles calculations

Sakhya

Sandeep

et al. 2016

RSC Adv.

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We have systematically investigated the electronic structure, optical properties, Born effective charges and the thermoelectric properties of PrMO3 (M =Al, Ga, In) compounds using first-principles density functional theory calculations. Two different density functional approaches, full potential linearized augmented plane wave method (FP-LAPW) and plane wave pseudo potential method were used for the present study. A direct band gap at Γ point of 3.8 eV, 3.07 eV and 2.9 eV is observed for PrAlO3 (PAO), PrGaO3 (PGO) and PrInO3 (PIO). Optical anisotropy of these compounds is revealed from the computed optical properties such as complex dielectric function, refractive index, and absorption coefficient for PAO and PGO whereas PIO is found to be optically isotropic in the low energy range making it suitable for use in the development of ceramic scintillators. The inter-band transitions to the optical properties are analyzed with the help of calculated band structures. The Born effective charge and the static dielectric tensor of these materials have also been calculated.

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Optical Spectroscopy of f-Element Compounds

Cited by 5 publications

References 40 publications

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Advances in the theoretical understanding of photon upconversion in rare-earth activated nanophosphors

Electronic, optical and thermoelectric properties of PrMO₃ (M = Al, Ga, In) from first-principles calculations

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Optical Spectroscopy of f-Element Compounds

Cited by 5 publications

References 40 publications

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Bio-mediated Sm doped nano cubic zirconia: Photoluminescent, Judd–Ofelt analysis, electrochemical impedance spectroscopy and photocatalytic performance

Advances in the theoretical understanding of photon upconversion in rare-earth activated nanophosphors

Electronic, optical and thermoelectric properties of PrMO3 (M = Al, Ga, In) from first-principles calculations

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Electronic, optical and thermoelectric properties of PrMO₃ (M = Al, Ga, In) from first-principles calculations