Title of article
Even parity states in small band gap π-conjugated polymers: polydithienothiophenes
Author/Authors
Ehrenfreund، نويسنده , , E. and Cravino، نويسنده , , Pamela A. and Neugebauer، نويسنده , , H. and Sariciftci، نويسنده , , N.S. and Luzzati، نويسنده , , S. and Catellani، نويسنده , , M.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
5
From page
132
To page
136
Abstract
Using the photon energy induced blue shift of the resonant Raman scattering frequencies in inhomogeneous films (‘RRS dispersion’), we extract the energy of the lowest even parity state of π-conjugated polymers. We show that in the small band gap (≈1.1 eV) poly(dithienothiophenes), the experimentally observed unusually large RRS dispersion yields for the lowest even parity state (2Ag) an energy, which is in the vicinity of the optically allowed state (1Bu).
Journal title
Chemical Physics Letters
Serial Year
2004
Journal title
Chemical Physics Letters
Record number
1912424
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