Phys. Rev. B 69, 125202 (2004) [4 pages]Resonant Raman spectroscopy on α-hexathiophene single crystalsReceived 28 July 2003; published 4 March 2004 Resonant Raman measurements of α-hexathiophene at 33 K have identified over ten vibrational modes that couple to electronic excitations in the single crystal. These excitations at 2.066 eV and 2.068 eV with a width of 2meV have been tentatively identified as bound singlet Frenkel excitons or a triplet Frenkel exciton. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.69.125202
DOI:
10.1103/PhysRevB.69.125202
PACS:
78.30.Jw, 71.35.Aa
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