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Single molecule spectroscopy: Stark effect of pentacene inp-terphenyl

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
193
Issue
6
Identifiers
DOI: 10.1016/0009-2614(92)85830-4

Abstract

Abstract Stark shifts of the zero phonon line of the vibrationless S 1←S 0 transition of single pentacene molecules embedded in p-terphenyl crystals have been investigated at cryogenic temperatures. The energy shifts are mainly determined by the quadratic Stark effect. The contribution of the linear Stark effect is rather small and varies strongly from molecule to molecule. The polarizability differences for the ground and first excited state have been calculated from the experimental data obtained from a detailed study of eight single molecules.

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