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Titolo:
Photoelectrochemical properties of ZnO/tetrasulfophthalocyanine hybrid thin films prepared by electrochemical self-assembly
Autore:
Oekermann, T; Yoshida, T; Schlettwein, D; Sugiura, T; Minoura, H;
Indirizzi:
Gifu Univ, Grad Sch Engn, ERES Div, Gifu 5011193, Japan Gifu Univ Gifu Japan 5011193 rad Sch Engn, ERES Div, Gifu 5011193, Japan Univ Bremen, FB 2, Inst Angew & Phys Chem, D-28334 Bremen, Germany Univ Bremen Bremen Germany D-28334 & Phys Chem, D-28334 Bremen, Germany Univ Oldenburg, Fachbereich Chem, D-26111 Oldenburg, Germany Univ Oldenburg Oldenburg Germany D-26111 hem, D-26111 Oldenburg, Germany
Titolo Testata:
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
fascicolo: 16, volume: 3, anno: 2001,
pagine: 3387 - 3392
SICI:
1463-9076(2001)3:16<3387:PPOZHT>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
ONE-STEP ELECTRODEPOSITION; MICELLAR SOLUTIONS; CHARGE INJECTION; SOLAR-CELLS; TIO2 FILMS; ZNO; PHTHALOCYANINES; ZINC; PHOTOCURRENTS; PHOTOSENSITIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Minoura, H Gifu Univ, Grad Sch Engn, ERES Div, Yanagido 1-1, Gifu 5011193,Japan Gifu Univ Yanagido 1-1 Gifu Japan 5011193 Gifu 5011193, Japan
Citazione:
T. Oekermann et al., "Photoelectrochemical properties of ZnO/tetrasulfophthalocyanine hybrid thin films prepared by electrochemical self-assembly", PHYS CHEM P, 3(16), 2001, pp. 3387-3392

Abstract

Dye-loaded zinc oxide (ZnO) thin films prepared by a one-step electrochemical synthesis from aqueous mixtures of zinc nitrate and water soluble tetrasulfonated metallophthalocyanines (TSPcMt), in which Mt = Zn(II), Al(III)[OH] or Si(IV)[OH](2), have been studied photoelectrochemically. Visible light absorbed in the TSPcMt led to the sensitization of ZnO. A significantly higher conversion efficiency was found for monomeric as compared to aggregated TSPcMt adsorbed on the ZnO surface. The highest photocurrents were observed for TSPcSi. This could be explained by a strong interaction of the TSPcSi with the ZnO, leading to a highly ordered growth of the ZnO/TSPcSi filmswith a large fraction of TSPcSi monomers adsorbed to the ZnO surface. The strong adsorption also leads to a more efficient electron injection from the TSPcSi monomers into the conduction band of ZnO as compared to other TSPcMt.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 10:28:45