Transient spectroscopy of Frenkel and charge transfer excitons in α-sexithienyl films

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Publication Type Journal Article
School or College College of Science
Department Physics
Creator Vardeny, Zeev Valentine
Other Author Lanzani, G.; Frolov, S. V.; Lane, P. A.; Nisoli, M.; De Silvestri, S.
Title Transient spectroscopy of Frenkel and charge transfer excitons in α-sexithienyl films
Date 1997-10
Description Photoexcitations dynamics are investigated in a-sexithienyl nanocrystalline films using transient photomodulation in a spectral range from 0.4 to 2.5 eV and time domain from 200 fs to 50 ms. We identify intrachain and interchain excitations. The former are even parity excitons with ultrafast dynamics, whereas the latter are long-lived charge transfer excitons generated within 300 fs, which separate into uncorrelated polaron pairs in the submicrosecond time domain.
Type Text
Publisher American Physical Society
Journal Title Physical Review Letters
Volume 79
Issue 16
First Page 3066
Last Page 3069
DOI 10.1103/PhysRevLett.79.3066
citatation_issn 0031-9007
Subject Transient spectroscopy; Excitons; Frenkel exciton; Charge transfer exciton; Transient photomodulation
Subject LCSH Conducting polymers; Electronic excitation; Exciton theory
Language eng
Bibliographic Citation Lanzani, G., Frolov, S. V., Lane, P. A., Vardeny, Z. V., Nisoli, M., & De Silvestri, S. (1997). Transient spectroscopy of Frenkel and charge transfer excitons in α-sexithienyl films. Physical Review Letters, 79(16), 3066-9.
Rights Management (c) American Physical Society http://dx.doi.org/10.1103/PhysRevLett.79.3066
Format Medium application/pdf
Format Extent 118,531 bytes
Identifier ir-main,9879
ARK ark:/87278/s6th94wv
Setname ir_uspace
ID 703559
Reference URL https://collections.lib.utah.edu/ark:/87278/s6th94wv
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