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Synthesis and characterization of porphyrin electrochromic and photovoltaic electropolymers |
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| Authors: | Javier DurantiniGustavo M Morales Marisa SantoMatías Funes Edgardo N DurantiniFernando Fungo Thomas DittrichLuis Otero Miguel Gervaldo |
| Affiliation: | a Departamento de Química, Universidad Nacional de Río Cuarto, Agencia Postal Nro. 3, X5804BYA Río Cuarto, Córdoba, Argentina b Departamento de Física, Universidad Nacional de Río Cuarto, Agencia Postal Nro. 3, X5804BYA Río Cuarto, Córdoba, Argentina c Helmholtz Center Berlin for Materials and Energy, Institute of Heterogeneous Materials, Hahn-Meitner-Platz 1, D-14109 Berlin, Germany |
| Abstract: | New asymmetric porphyrins, with electroactive functionalities were synthesized. 5,15-Bis4(-N,N-diphenylamino)phenyl]-10,20-bis3-(N-ethylcarbazoyl)]porphyrin and its Zn(II) derivative allow the electrochemical formation of conjugated, conducting and stable polymeric films over semitransparent indium-tin oxide surface. The spectral changes observed upon oxidation of the films produced different colorations. The polymeric materials showed the generation of photoinduced charge separation states and charge migration upon porphyrin excitation, making them promising candidates for application in optoelectronics devices. |
| Keywords: | Porphyrin Carbazole Triphenylamine Electropolymerization Electrochromic Surface photovoltage |
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