On the lifetime of KCI: Ag+ fluorescence

Review of Emission and Lifetime Data Concerning Cu+ Fluorescence in Alkali Halides

“…For instance, in the past Bosi and coworkers found that h r ðTÞ values for KCl : Ag þ are constant in the 20-300 K range [28] whereas for NaCl : Ag þ h r ðTÞ values are constant only in the 20-100 K range [29]. In this way, we explained the puzzling results obtained by Pedrini [30] in NaCl : Ag þ since, obviously, his relationship (2) was found [29,30] useful only in the 20-100 K range.…”

Emission Characteristics of Silver Atoms in γ−Irradiated Organic Solid Solutions at 77 K

“…Finally, it is of great interest that not only the fluorescence spectra but also the lifetimes of the emission bands obtained in the organic solutions in this study are similar to those of nanocrystalline silver halides 15,17 rather than those in the rare gas matrixes. Since our recent ESR study has shown evidence that Ag 2 + is formed by Ag 0 and Ag + which are in very close proximity to each other, 25 it may be inferred that a quasinanocrystalline configuration of Ag + ions is partly formed in the organic solid solutions.…”

“…On the other hand, the photophysical properties of crystalline silver halides such as AgBr and AgI, which are ionic semiconductors, have long been investigated by many reseachers. − The effects of size restriction on the static and dynamic emission behavior of AgBr crystallites have been investigated. − On the basis of these photophysical experimental results, Freedhoff et al presented a review of quantum confinement effects in nanocrystals of AgBr in comparison with ones in nanocrystals of AgI. It is noteworthy that the emission spectra and the long lifetime component observed in the organic solid solutions in the present study resemble more closely those for the nanocrystalline silver halides 15,17 than those for the rare gas matrixes.…”

“…On the other hand, the photophysical properties of crystalline silver halides such as AgBr and AgI, which are ionic semiconductors, have long been investigated by many reseachers. [8][9][10][11][12][13][14][15][16][17] The effects of size restriction on the static and dynamic emission behavior of AgBr crystallites have been investigated. [12][13][14] On the basis of these photophysical experimental results, Freedhoff et al 15 15,17 than those for the rare gas matrixes.…”

“…[8][9][10][11][12][13][14][15][16][17] The effects of size restriction on the static and dynamic emission behavior of AgBr crystallites have been investigated. [12][13][14] On the basis of these photophysical experimental results, Freedhoff et al 15 15,17 than those for the rare gas matrixes.…”