Abstract
The surface structures and the electronic states of poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) blend films are studied by using doubly resonant infrared-visible sum frequency generation (DR-SFG) spectroscopy. The SFG spectra of P3HT indicate the co-existence of the ordered and disordered P3HT at the interface. In the P3HT:PCBM blend film, the peak located at 1460 cm−1, which is originated from the charge transfer state of PCBM, is observed.
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Schedule a callMore From: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
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