Optical absorption of triplet molecular excitons in alkali cyanides |
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Authors: | SS Camargo JP von der Weid |
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Institution: | Departamento de Física, Pontifícia Universidade Católica C.P. 38071, Rio de Janeiro, Brasil |
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Abstract: | The optical absorption spectra of alkali cyanides in the UV region present a set of weak absorption bands which are identified as triplet a'3Σ+ molecular excitons. The nature of the molecular exciton transitions in the ionic-molecular crystals is discussed and the existence of an admixture between molecular exciton and charge transfer exciton states is suggested. |
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