Visible and blue electroluminescent diodes utilizing poly(3-alkylthiophene)s and poly(alkylfluorene)s
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2011, Advances in Heterocyclic ChemistryCitation Excerpt :The energy of the triplet states of α-oligothiophenes with n = 1–4 monomer units was determined (99PCCP1707). The results of detailed picosecond time-resolved spectroscopic studies on a series of oligothiophenes with n = 2–6 repeat units was reported (92SM(48)167; 92SM(52)213; 93SM(55–57)4740; 95JPC16991). The fast rising transient absorption bands which appeared at all thiophene oligomers nT could be identified by their kinetics as transitions from S1 to higher singlet states.
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