Abstract

The emission of free and self-trapped excitons in solid Kr wasinvestigated using luminescence spectroscopy in the vacuumultraviolet region. The influence of the sample crystalstructure and Xe impurity on the shape and location of theself-trapped exciton band was observed directly using samplesgrown under different conditions from gases with various degreesof purity. For the first time, the luminescence spectra weremeasured for practically Xe-free solid Kr samples of highstructural quality.New high-resolution reflection spectra of solid Kr were measuredas well. Due to the good quality of the samples and excellentvacuum conditions, a new member of the exciton series (n = 5)was revealed. On the basis of high-resolution reflectionmeasurements, more accurate values of several parametersconcerning excitons in solid Kr were determined.

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