Edgar Vaquera, Arturo Caballero, F. Retana, Susana López Cortina, T. Serrano
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Synthesis of 3-hexylthiophene derived semiconductor polymers and composites with nanoparticles
The monomer 3-hexylthiophen-2,5-dicarboxaldehyde was synthetized from precursor 3-hexylthiophene by VilsmeierHaack reaction. Three p-type semiconductor polymers (PHT-P, PHT-B and PHT-H) were synthetized by aldol condensation from this monomer with three different ketones (propanone, butanone and hexanone). Three composites were created by adding PbS/ZnS nanoparticles to these polymers. Light absorption increased to the red from polymers to composites. Electrical conductivity increased from 10% S/cm in polymers to 10! S/cm in composites.
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