scispace - formally typeset
Journal ArticleDOI

Polarized Electronic Absorption, Emission, and Excitation Spectra of Cs2CdCl4:Ni2+ Single Crystals

TLDR
In this article, the polarized absorption spectra of Ni2+ doped in Cs2CdCl4 single crystals at 295 and 77 K in the range 5000 to 25000 cm−1.
Abstract
The polarized absorption spectra are reported of Ni2+ doped in Cs2CdCl4 single crystals at 295 and 77 K in the range 5000 to 25000 cm−1. Emission and excitation spectra are also reported in the range 11000 to 25000 cm−l. The Ni2+ ions occupy the Cd2+ sites in octahedral geometry and the spectra are satisfactorily interpreted in terms of a cubic ligand field model including spin-orbit coupling. The ligand field parameters evaluated to best fit the observed spectra are Dq = 600 cm−1, F2 = 1260 cm−1, F4 = 87 cm−l, und λ = 290 cm−l. No strong spectral evidence for tetragonal distortion is observed. Die Polarisations-Absorptions-Spektren von Ni2+ -dotierten Cs2CdCl2-Einkristallen werden bei 295 und 77 K im Bereich von 5000 bis 25000 cm−l sowie die Emissions- und Anregungsspektren im Bereich 11 000 bis 25000 cm−l untersucht. Die Ni2+-Ionen besetzen Cd2+-Platze in oktaedrischer Anordnung, und die Spektren werden befriedigend mit einem kubischen Ligandenfeldmodell unter Einschlus von Spin-Bahn-Kopplung interpretiert. Die Ligandenfeldparameter, die die beobachteten Spektren am besten anpassen, sind Dq = 600 cm−1, F2 = 1260 cm−1, F4 = 87 cm−1 und λ = 290 cm−1. Fur eine tetragonale Verzerrung wird aus den Spektren kein deutlicher Hinweis beobachtet.

read more

Citations
More filters
Journal ArticleDOI

2D layered all-inorganic halide perovskites: recent trends in their structure, synthesis and properties

TL;DR: This minireview presented a discussion on the recently developed all-inorganic 2D layered halide perovskites highlighting their crystal structure, synthetic methodologies, chemical transformations, and optical properties, as well as demonstrating a significant number of examples of Pb-free 2D halideperovskite nanostructures.
Journal ArticleDOI

Comparative crystal field study of Ni2+ energy levels in NiCl2, NiBr2, and NiI2 crystals

TL;DR: In this paper, the ground state absorption spectra of octahedrally coordinated Ni 2+ ion in isostructural nickel halide crystals NiCl 2, NiBr 2, and NiI 2 were calculated from available crystal structure data.
Journal ArticleDOI

Cyan Emission in Two-Dimensional Colloidal Cs2CdCl4:Sb3+ Ruddlesden-Popper Phase Nanoplatelets.

TL;DR: In this paper, the Ruddlesden-Popper Cs2CdCl4:Sb3+ phase was synthesized as colloidal nanoplatelets using a facile hot injection approach under atmospheric conditions.
Journal ArticleDOI

Comparative study of crystal field effects for Ni2+ ion in LiGa5O8, MgF2 and AgCl crystals

TL;DR: In this paper, the exchange charge model (ECM) of crystal field was used to calculate the crystal field parameters (CFPs) and model the energy levels for Ni 2+ ion in LiGa 5 O 8, MgF 2 and AgCl crystals.
Journal ArticleDOI

Comparative first-principles study of the Ni2+ absorption spectra and covalence effects in isostructural crystals NiCl2, NiBr2 and NiI2

TL;DR: Ogasawara et al. as discussed by the authors used the discrete variational multi-electron method to calculate the ground-state absorption spectra and covalence effects in three isostructural anisotropic crystals with layered structure.
References
More filters
Journal ArticleDOI

On the Absorption Spectra of Complex Ions II

TL;DR: In this paper, the authors solved the energy levels which are important in the absorption spectra of the normal complex ions, leaving the crystalline field strength as a parameter The values of B and C (Racah's parameters) there needed are determined from the observed spectras of free ions or in some cases by extrapolation The f -values of the transitions which connect energy levels calculated are estimated and compared with the observed intensities.
Journal ArticleDOI

Complete theory of Ni(II) and V(III) in cubic crystalline fields

TL;DR: In this article, the generalized crystal field theory of Finkelstein and Van Vleck is augmented by the introduction of spin-orbit coupling and an attempt is made to account for both the spin-allowed and spin-forbidden dn, (n = 2, 8), spectral transitions of Ni(II) and V(III) complexes.
Journal ArticleDOI

Ni2+ emission in MgO, KMgF3, KZnF3 and MgF2

TL;DR: In this article, the emission of Ni2+ ions in MgO, KMgF3, KZnF3 and MgF2 crystals has been investigated.
Journal ArticleDOI

Effects of Interionic Coupling on the Electronic Spectra of Transition Metal Ions. The Ligand Field Spectra of CsNiCl3 and CsNiBr3

TL;DR: In this article, the intensity behavior of the multiplicity forbidden transitions in the nickel compounds is similar to that observed for a number of high spin manganese (II) salts.
Journal ArticleDOI

Temperature dependence of Ni2+ luminescence in KZnF3, MgF2 and MgO☆

TL;DR: In this paper, a configurational coordinate analysis of KZnF3 : Ni2+ is included in the discussion, and the models of Mott, Struck and Fonger, and Flaherty and Di Bartolo were used to estimate nonradiative rates.
Related Papers (5)