Effect of magnetic field on the fluorescence of tetracene crystals: Exciton fission

N. Geacintov, M. Pope, F. Vogel

Research output: Contribution to journalArticle

Abstract

The fluorescence efficiency of tetracene single crystals may be enhanced by as much as 38% in a magnetic field H>2000 G. The enhancement is anisotropic with respect to the orientation of H in the ab plane. It is shown that a magnetically sensitive coupling of singlet states to a double-triplet-exciton state (T1T1) at 2.40 eV is an important channel for radiationless decay in crystalline tetracene above 160°K.

Original languageEnglish (US)
Pages (from-to)593-596
Number of pages4
JournalPhysical Review Letters
Volume22
Issue number12
DOIs
StatePublished - Dec 1 1969

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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