Laser Spectroscopy of Defect Chemistry in Conducting Materials |
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Page 39
... oxygen compensated trigonal Eu site appeared after This 3+ thermal annealing that resulted from oxygen contamination . oxygen compensated new site is the same site observed earlier in the work of Hommel et al . [ 139 ] . Jouart et al ...
... oxygen compensated trigonal Eu site appeared after This 3+ thermal annealing that resulted from oxygen contamination . oxygen compensated new site is the same site observed earlier in the work of Hommel et al . [ 139 ] . Jouart et al ...
Page 40
... oxygen compensated site after thermal annealing that resulted from oxygen contamination that was present during the annealing . Oxygen compensated trigonal Er3 + site generated in CdF2 : Er crystals that were fired in oxygen subsequent ...
... oxygen compensated site after thermal annealing that resulted from oxygen contamination that was present during the annealing . Oxygen compensated trigonal Er3 + site generated in CdF2 : Er crystals that were fired in oxygen subsequent ...
Page 270
... oxygen compensated sites are concentrated on the surface and are not homogeneous through the crystal . But the distribution of the other sites is the same ( Figure 5-26 ( c ) and ( e ) ) . Therefore , the sites charge compensated by the ...
... oxygen compensated sites are concentrated on the surface and are not homogeneous through the crystal . But the distribution of the other sites is the same ( Figure 5-26 ( c ) and ( e ) ) . Therefore , the sites charge compensated by the ...
Common terms and phrases
absorption activity addition anion annealing temperature assigned band behavior blue CaF2 caused Cd metal charge clusters cm¯¹ coefficient conductivity constant conversion correspond crystal crystal annealed cubic cubic site decrease defect delay dependence diffuse dimer disorder dissociated distribution dopant concentration doped effects electrons energy transfer Er³ Er3+ excitation and fluorescence excitation spectra excitation spectrum monitoring field Figure fluorescence spectra fluorescence transient fluoride fluoride ions function heat higher temperatures important impurity increases indicated intensity interactions interstitial ionic laser lattice levels lifetimes lines major manifold material measurements mechanism monitoring observed obtained PbF2 peaks phase phonon processes proposed quenched rare earth ions ratio relative relaxation result sample scavenging semiconducting shown in Figure single specific spectrum studied suggested superionic symmetry Table tion transition transition monitoring transition temperature vacancies vacuum Wavelength weak