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Absorption spectra of poly(3-hexylthiophene)- alkyne (P3HT-A), block copolymer (BCP), and supramolecular block copolymer (SBCP). (a) In solution and (b) in films deposited on glass. (c) Optical energy gaps of P3HT-A, BCP, and SBCP films, determined graphically using the Tauc method.
