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On the nature of emission bands of self-trapped excitons in solid xenon

1979; Elsevier BV; Volume: 32; Issue: 9 Linguagem: Inglês

10.1016/0038-1098(79)90755-5

1879-2766

I. Ya. Fugol’, A. G. Belov, Е. Ю. Тарасова,

Photoreceptor and optogenetics research

The paper presents the analysis of experimental data on the temperature dependence of luminescence spectra of solid xenon. The mechanisms of exciton self-trapping down to quasi-molecular states under different conditions are discussed. A new treatment of spectral distribution of intensity through quasi-molecular luminescence bands is proposed; according to the treatment, at T < 55 K the emission is associated with the transition from the lowest vibrational relaxation excited state 3Σu+, while at T 60 K from the term 1Σu+. Spectral redistribution of intensities in the 60–150 K range is due to an increase in the rate of vibrational relaxation in the state 1Σu+ with increasing the crystal temperature.