NONLOCAL POLARIZABILITIES IN EXCITED-STATES OF POLYACENE CRYSTALS

Authors
PETELENZ P
Citation
P. Petelenz, NONLOCAL POLARIZABILITIES IN EXCITED-STATES OF POLYACENE CRYSTALS, Chemical physics letters, 215(6), 1993, pp. 607-610
Citations number
16
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
215
Issue
6
Year of publication
1993
Pages
607 - 610
Database
ISI
SICI code
0009-2614(1993)215:6<607:NPIEOP>2.0.ZU;2-U
Abstract
A simple two-state model is applied to estimate the nonlocal contribut ion to the Frenkel state polarizability, resulting from the coupling o f that state with charge transfer excitons. The results suggest that i n the S-1 state of anthracene and tetracene the polarizability may be dominated by nonlocal terms. An explanation of the large discrepancies between the polarizabilities measured in slightly different experimen tal conditions is offered.