Excitation Spectra of the Iodine Bound Exciton in AgBr:I
                    <sup>-</sup>

Burki, Y.; Czaja, W.

doi:10.1209/0295-5075/10/1/010

Cited by 9 publications

(1 citation statement)

References 11 publications

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“…Note that the excitation spectra observed when monitoring the iodide-bound exciton emission (470−510 nm) do not exhibit a band at 430−440 nm in the R-sensitized samples. These spectra are the same as those previously published for untreated samples …”

Section: Characteristics Of R-sensitizationsmentioning

confidence: 86%

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

et al. 1998

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AgBr microcrystals that have been treated with reducing agents to form small silver clusters on their surface have been examined with low-temperature optical and optically detected magnetic resonance methods. These investigations have indicated that these treatments produce two closely related Ag clusters that are spectroscopically active. One of the centers manifests itself by low-temperature emission bands at 550 and 640 nm and an absorption band at 442 nm. The other center, which absorbs at 430 nm, acts as a surface hole trap that completely changes the nature of the AgBr donor acceptor recombination. These centers are only observable on crystals with {111} faces. Spectroscopic and theoretical considerations suggest that these spectroscopically prominent centers are silver dimers in two different surface configurations.

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Section: Characteristics Of R-sensitizationsmentioning

confidence: 86%

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

et al. 1998

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Temperature Dependence of the Oxygen Absorption Band in ZnTe: O

Slüsarenko

Burki

Czaja

et al. 1990

Physica Status Solidi (b)

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Absorption measurements are made as function of temperature for the isoelectronic trap ZnTe : 0. This spectrum is well separated from the intrinsic absorption and from the absorption due to other impurities. The spectra can be semiquantitatively understood using a model developed for AgBr: I. The temperature dependence of the absorption due to LO-phonon cooperation is given by where y can be derived from the value for AgBr: 1. The fine structure of the absorption is explained and the spectral symmetry between emission and absorption is discussed in detail. The electron-phonon coupling (Huang-Rhys factor) is found to be different for different phonon modes and smaller in absorption than in emission for optical modes but the inverse is true for accoustic modes.Nous avons mesure I'absorption en fonction de la temperature du piege isoelectronique ZnTe: 0. Le spectre est stpare de maniere distincte de I'absorption intrinseque ainsi que des autres impuretes. Ce spectre peut &tre analyse d'une maniere semiquantitative en utilisant un modtle dCvelopp6 pour I'AgBr : I. La dependance en temperature de l'absorption due a la cooperation de phonons LO est donnee par -e -y T 2 ou y peut Ctre derive de sa valeur pour 1'AgBr: 1. Nous expliquons la structure fine du spectre d'absorption ainsi que la symetrie spectrale entre emission et absorption. Le couplage electron-phonon (represente par le facteur Huang-Rhys) montre des valeurs differentes pour ies modes phononiques differents et en particulier, il est plus petit en absorption qu'en emission pour les modes optiques, tandis que I'inverse est observe pour les phonons accoustiques.

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Silver bromide (AgBr) impurities and intrinsic defects: bound excitons

Landolt-Börnstein - Group III Condensed Matter

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Excitation Spectra of the Iodine Bound Exciton in AgBr:I ^-

Abstract: Excitation spectra of the iodine bound exciton in AgBr are performed and a new interpretation is given for the fine structure observed. The high-energy range of the excitation spectra is compared and discussed with other impurity spectra.

Cited by 9 publications

References 11 publications

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

Temperature Dependence of the Oxygen Absorption Band in ZnTe: O

Silver bromide (AgBr) impurities and intrinsic defects: bound excitons

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Excitation Spectra of the Iodine Bound Exciton in AgBr:I -

Abstract: Excitation spectra of the iodine bound exciton in AgBr are performed and a new interpretation is given for the fine structure observed. The high-energy range of the excitation spectra is compared and discussed with other impurity spectra.

Cited by 9 publications

References 11 publications

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

Formation and Spectroscopic Manifestation of Silver Clusters on Silver Bromide Surfaces

Temperature Dependence of the Oxygen Absorption Band in ZnTe: O

Silver bromide (AgBr) impurities and intrinsic defects: bound excitons

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Excitation Spectra of the Iodine Bound Exciton in AgBr:I ^-