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Energy transfer in a molecular crystal with orientational disorder: 2,3-dimethylnaphthalene

✍ Scribed by W. Schrof; E. Betz; H. Port; H.C. Wolf

Publisher: Elsevier Science
Year: 1986
Tongue: English
Weight: 527 KB
Volume: 123
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(86)80076-8

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✦ Synopsis

The dyqamics of singlet excitonic energy transfer in mixed crystals of 2,3-dimethylnaphthalene and anthracene has been measured using time-resolved fluorescence spectroscopy in the nanosecond to picosecond range as a function of guest concentration and temperature. A transition from diffusive transport of the excitation energy above 100 K to predominant dispersive transport at helium temperature is found, and attributed to the orientational disorder in the DMN crystal.

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