Davydov splitting in triplet excitons of tetracene single crystals
نویسندگان
چکیده
This work reports room temperature Davydov splitting in triplet transitions Tn ← T1 of tetracene single crystals. This was observed through femtosecond transient absorption spectroscopy with polarized ‖ b and ⊥ b probing on the (ab) face of the 300 nm thick crystal. A Davydov splitting of 0.04 eV (286 cm−1) was obtained on an excited state absorption signal ascribed to triplet excitons in Birech et al, jcp, Vol. 140, 114501, 2014. © 2014 Optical Society of America OCIS codes: 160.4890
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