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Artículo

Photoinduced charge separation in organic-organic heterojunctions based on porphyrin electropolymers. Spectral and time dependent surface photovoltage study

Durantini, Javier EstebanIcon ; Suárez Ramanzin, Maria BelenIcon ; Santo, Marisa; Durantini, Edgardo NéstorIcon ; Dittrich, Thomas; Otero, Luis AlbertoIcon ; Gervaldo, Miguel AndresIcon
Fecha de publicación: 02/2015
Editorial: American Chemical Society
Revista: Journal of Physical Chemistry C
ISSN: 1932-7447
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Químicas

Resumen

Photoactive heterojunctions formed by porphyrin polymers were electrochemically generated and analyzed by both transient and spectral dependent surface photovoltage. Indium tin oxide/organic polymer heterojunction photovoltages showed to be dependent on the presence of Zn (II) as central metal on the porphyrin polymer structure. The porphyrin electropolymers were also successfully formed on the top of a poly 3,4-ethylenedioxythiophene layer, generated by electropolymerization. The presence of the hole transport polymer dramatically altered the formation and diffusion process of the photocarriers created by excitation of the porphyrin films. A marked increase in the generated photovoltages was observed when the porphyrin electropolymer external surfaces were modified with a layer of a strong electron acceptor (C60 buckminsterfullerene), showing that these heterojunctions could be used in the development of new solar energy technologies.
Palabras clave: Tetrapirrolic Compounds , Conducting Polymers , Organic Photovoltaics , Pedot , Bilayers
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/39692
DOI: http://dx.doi.org/10.1021/jp510432v
URL: https://pubs.acs.org/doi/10.1021/jp510432v
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Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Citación
Durantini, Javier Esteban; Suárez Ramanzin, Maria Belen; Santo, Marisa; Durantini, Edgardo Néstor; Dittrich, Thomas; et al.; Photoinduced charge separation in organic-organic heterojunctions based on porphyrin electropolymers. Spectral and time dependent surface photovoltage study; American Chemical Society; Journal of Physical Chemistry C; 119; 8; 2-2015; 4044-4051
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