Transient absorption due to the self-trapped exciton localized at an iodine dimer in KCl:I

S. Hirota, K. Edamatsu, M. Hirai

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21 Citations (Scopus)

Abstract

The transient absorption spectrum of the self-trapped exciton (STE) localized at an iodine dimer (I2 - *) in an iodine-doped KCl crystal (KCl:I) has been investigated at 80 K. The absorption band due to the electronic transition was found around 0.36 eV, and the bands due to the hole transitions around 1.5 to 3.0 eV. The electronic transition band occurred in an extremely lower-energy region than that of the STE in KI or RbI crystals, suggesting the on-center configuration of the STE (I2 - *) in KCl:I.

Original languageEnglish
Pages (from-to)3283-3285
Number of pages3
JournalPhysical Review Letters
Volume67
Issue number23
DOIs
Publication statusPublished - 1991 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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