ISSN:
1432-2234
Keywords:
NO 2 − ions
;
KNO2 doped NaNO2 single crystals
;
Time-resolved fluorescence
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary On the basis of high-resolution and time-resolved fluorescence spectra, a model is proposed for the interpretation of the fluorescence lines originating from various perturbed NO 2 − centers situated in the neighbourhood of the K+ ion of the NaNO2:KNO2 crystal. Since their excited state energies are lower than that of the host, these perturbed NO 2 − ions act as traps for the host singlet exciton. On the assumption that the perturbation giving rise to those traps results from an interaction of the impurity ion K+ with its nearest neighbours, the observed position of the energy levels of the various traps can be reconciled with crystal field calculations.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01374530
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