Frustrated energy relaxation in an organic glass

R. Richert, H. Bãssler, B. Ries, B. Movaghar, M. Grünewald

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

Time-dependent transport of triplet excitons in amorphous benzophenone has been investigated in the low-temperature range down to 6 K. The data exhibit some remarkable features associated with the freezing-in of excitations in energy-disordered glasses. The relaxation process is investigated and explained using Monte Carlo simulations and analytical random-walk techniques. The inadequacy of mean-field type methods is demonstrated for the low-temperature domain, where exact averaging techniques can be applied.

Original languageEnglish (US)
Pages (from-to)95-102
Number of pages8
JournalPhilosophical Magazine Letters
Volume59
Issue number2
DOIs
StatePublished - Feb 1989
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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