Characterization of electrodeposited zinc oxide/tetrasulphonatedcopper phthalocyanines (ZnO/Ts-CuPc) hybrid films and their photoelectrochemical properties

Marí Soucase, Bernabé and Moya Forero, Mónica M. and Singh, Krishan Chander and Mollar García, Miguel and Palacios Clemente, Pablo and Artacho, Emilio and Wahnón Benarroch, Perla (2011). Characterization of electrodeposited zinc oxide/tetrasulphonatedcopper phthalocyanines (ZnO/Ts-CuPc) hybrid films and their photoelectrochemical properties. "Journal of Electroanalytical Chemistry", v. 653 (n. 1-2); pp. 86-92. ISSN 1572-6657. https://doi.org/10.1016/j.jelechem.2010.12.023.

Description

Title: Characterization of electrodeposited zinc oxide/tetrasulphonatedcopper phthalocyanines (ZnO/Ts-CuPc) hybrid films and their photoelectrochemical properties
Author/s:
  • Marí Soucase, Bernabé
  • Moya Forero, Mónica M.
  • Singh, Krishan Chander
  • Mollar García, Miguel
  • Palacios Clemente, Pablo
  • Artacho, Emilio
  • Wahnón Benarroch, Perla
Item Type: Article
Título de Revista/Publicación: Journal of Electroanalytical Chemistry
Date: 2011
ISSN: 1572-6657
Volume: 653
Subjects:
Freetext Keywords: ZnO; Phtalocianyne; Hybrid films; DFT
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica y Bioingeniería
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Hybrid films of zinc oxide (ZnO) and tetrasulphonatedcopper phthalocyanine (Ts-CuPc) have been prepared by cathodic electro-deposition from aqueous O2-saturated solutions of ZnCl2 and Ts-CuPc. The Ts-CuPc content of the films can be varied in a wide range by variation of dye concentration in the electro-deposition bath – from single Ts-CuPc molecules embedded in compact crystalline ZnO to films based on an amorphous Ts-CuPc framework. With increasing dye content the colour of the films changes from light blue to deep blue. All films were characterized by XRD, SEM and AFM. Photoelectro-chemical characteristics of the electrodes were studied by photocurrent spectra and by time-resolved photocurrent measurements in 0.1 M KCl electrolyte. At the same time, changes in the electrical and photoelectrical properties of the films are observed, enabling the tuning of these properties in view of optoelectronic applications. Theoretical calculations based on density functional theory (DFT) models were made to understand the optoelectronic properties of the hybrid films. Different parallel and perpendicular orientations were tested. For the most stable hybrid structure, total and projected densities of states of the system were obtained and the alignment of the levels observed.

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainMAT2009-14625-C03-03UnspecifiedUnspecifiedDiseño, síntesis y caracterización de materiales fotovoltaicos avanzados de alta eficiencia

More information

Item ID: 62375
DC Identifier: http://oa.upm.es/62375/
OAI Identifier: oai:oa.upm.es:62375
DOI: 10.1016/j.jelechem.2010.12.023
Official URL: https://www.sciencedirect.com/science/article/pii/S1572665710005382#!
Deposited by: Biblioteca ETSI Telecomunicación
Deposited on: 25 Mar 2020 14:43
Last Modified: 25 Mar 2020 14:43
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