Triplet state spectroscopy and photophysics of As2 in solid neon

Abstract
As2 dimer molecules generated by evaporating gallium arsenide were trapped and studied in solid neon. Components of at least three different excited electronic states are populated by direct tunable laser excitation and observed in phosphorescence. Nonradiative vibrational and electronic relaxation processes occurring in the matrix have been investigated. The electronic structure and spectroscopy of As2 is reviewed and summarized.

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