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Exciton–Phonon Interaction in Crystals of Linear Polyacenes
Author(s) -
Kurik M. V.,
Tsikora L. I.
Publication year - 1974
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220660234
Subject(s) - exciton , phonon , biexciton , condensed matter physics , pentacene , absorption (acoustics) , absorption edge , materials science , position (finance) , molecular physics , physics , band gap , optics , nanotechnology , finance , layer (electronics) , economics , thin film transistor
Abstract Investigation results of the exciton absorption band shape, its long‐wavelength edge, and maximum position and half width as a function of temperature are systematized for linear polyacene crystals from naphthalene to pentacene. It is found that excitons interact mainly with optical phonons resulting in a broadening and shift of the exciton absorption band. The shape of the absorption bands is found to be complicated and may be described by the Voigt function. Some assumptions on the character of the exciton–phonon interaction are made.