title: Generation of photocurrent by visible-light irradiation of conjugated dawson polyoxophosphovanadotungstate-porphyrin copolymers.
abstract: Four hybrid polyoxometalate-porphyrin copolymer films were obtained by the electrooxidation of zinc octaethylporphyrin in the presence of four different Dawson-type polyoxometalates bearing two pyridyl groups (POM(py)2) with various spacers. The POM monomers were designed around 1,3,5-trisubstituted benzene rings. Two of the substituents of the benzene ring are linked to the pyridyl groups, and the third is connected to the POM subunit. The four monomers vary in the relative positions of the nitrogen atoms of the pyridine rings or in the distance from the carbonyl group. The monomers were fully characterized by (1)H, (31)P, and (13)C NMR spectroscopy, electrospray mass spectrometry, IR and UV/Vis spectroscopy, and electrochemistry. The copolymers were characterized by UV/Vis spectroscopy, X-ray photoelectron spectroscopy, electrochemistry, and AFM. Their photovoltaic performance under visible light irradiation was investigated by photocurrent transient measurements under visible illumination.
authors.affiliation: Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005 Paris (France).|ICSN-CNRS, Av. de la Terrasse, 91198 Gif-sur-Yvette Cedex (France).|Laboratoire d'Electrochimie et de Chimie Physique du Corps Solide, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal CS 90032, 67081 Strasbourg Cedex (France).
authors.forename: Iban
authors.initials: I
authors.lastname: Azcarate
authors.affiliation: Laboratoire d'Electrochimie et de Chimie Physique du Corps Solide, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal CS 90032, 67081 Strasbourg Cedex (France).
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Huo
authors.affiliation: Sorbonne Universités, UPMC Paris 06, Institut des NanoSciences de Paris, UMR 7588 au CNRS, 4 place Jussieu, boîte courrier 840, 75252 Paris (France).|Laboratoire d'Analyse et Contrôle des Systèmes Complexes, ECE Paris Ecole d'Ingénieurs, 7 Quai de Grenelle, 75015 Paris (France).
authors.forename: Rana
authors.initials: R
authors.lastname: Farha
authors.affiliation: Sorbonne Universités, UPMC Paris 06, Institut des NanoSciences de Paris, UMR 7588 au CNRS, 4 place Jussieu, boîte courrier 840, 75252 Paris (France).|Université Paris Descartes, 45 rue des Saints Pères, 75006 Paris (France).
authors.forename: Michel
authors.initials: M
authors.lastname: Goldmann
authors.affiliation: Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials and Laboratory of Advanced Materials, Fudan University, Shanghai 200433 (P. R. China).
authors.forename: Hualong
authors.initials: H
authors.lastname: Xu
authors.affiliation: Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005 Paris (France). bernold.hasenknopf@upmc.fr.
authors.forename: Bernold
authors.initials: B
authors.lastname: Hasenknopf
authors.affiliation: ICSN-CNRS, Av. de la Terrasse, 91198 Gif-sur-Yvette Cedex (France). emmanuel.lacote@icsn.cnrs-gif.fr.|Institut de chimie de Lyon, UMR 5265 CNRS-Université Lyon I-ESCPE, Université de Lyon, 43 Bd du 11 novembre 1918, 69616 Villeurbanne (France). emmanuel.lacote@icsn.cnrs-gif.fr.
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Lacôte
authors.affiliation: Laboratoire d'Electrochimie et de Chimie Physique du Corps Solide, Institut de Chimie, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal CS 90032, 67081 Strasbourg Cedex (France). lruhlmann@unistra.fr.
authors.forename: Laurent
authors.initials: L
authors.lastname: Ruhlmann
mesh_terms: D004560:Electricity; D055664:Electrochemical Techniques; D008027:Light; D009682:Magnetic Resonance Spectroscopy; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D056951:Photoelectron Spectroscopy; D011108:Polymers / Q000737:chemistry*; D011166:Porphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D017973:Tungsten Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D008665:Metalloporphyrins; D011108:Polymers; D011166:Porphyrins; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates; C526613:zinc octaethylporphyrin
keywords: copolymerization; organic-inorganic hybrid composites; polyoxometalates; porphyrinoids; thin films