Disorder and nonradiative decay ofCr3+-doped glasses

Citations Over TimeTop 10% of 1992 papers

Abstract

This paper describes experimental studies of the distributions of ligand field sites occupied by ${\mathrm{Cr}}^{3+}$ dopant ions in inorganic glasses with different chemical compositions. The effects of site-to-site disorder are observed via the steady-state spectral band-shape and decay patterns of $^{4}$${\mathit{T}}_{2}$${\ensuremath{\rightarrow}}^{4}$${\mathit{A}}_{2}$ and $^{2}$E${\ensuremath{\rightarrow}}^{4}$${\mathit{A}}_{2}$ transitions of ${\mathrm{Cr}}^{3+}$ ions and their temperature dependences. The temperature dependence of the emission band shape, calculated on the assumption that the disorder distribution function is a Gaussian, agrees well with the experimental results. In addition, the peak wavelengths of the $^{4}$${\mathit{T}}_{2}$${\ensuremath{\rightarrow}}^{4}$${\mathit{A}}_{2}$ broadbands of ${\mathrm{Cr}}^{3+}$ in different glasses are shifted to shorter wavelengths with increasing temperature, and the total intensities of the bands are reduced. These results are explained in terms of nonradiative decay of ${\mathrm{Cr}}^{3+}$ ions occupying weaker crystal-field sites.

Related Papers

• → Doping process of p-type GaN nanowires: A first principle study(2017)29 cited
• → First-principles calculations on structural, electronic properties of V-doped 2H-NbSe2(2014)20 cited
• → Maximizing dopant photoluminescence in co-doped semiconductor nanoparticles for multiplex assays by tuning inter dopant electronic interactions: Synthetic co-doping or physical mixing of singly doped moieties?(2018)14 cited
• → Fourier transform infrared study of electrochemically prepared polythienylene films with varying doping levels(1984)60 cited
• → Modelling the concentration dependence of doping in optical materials(2015)