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We have studied the characteristic properties of charged excitations (polarons) in thin films of regioregular poly(3-hexylthiophene) (RRPHT) by optical spectroscopies. We found that the increased interchain coupling that exists in self-assembled lamellae in these films drastically changes the properties of the polaron excitations. The traditional self-localized polaron in one-dimension delocalizes...
Photoluminescence studies of spun films of polyaniline base (emeraldine oxidation state) show that films prepared from NMP solution in air having a relative humidity between 43+/-2 and 57+/-2% (21 o C) exhibit photoluminescence at 401nm, which persists when the films are held in a dynamic vacuum. Films prepared from NMP solution containing water show similar behavior to those prepared in the...
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