Journal article

Authors list: Nguyen, Thi Hai Quyen; Schafer, Michael; Pelmus, Marius; Gorun, Sergiu M.; Schlettwein, Derck

Publication year: 2021

Journal: Electrochimica Acta

Volume number: 377

ISSN: 0013-4686

eISSN: 1873-3859

DOI Link: https://doi.org/10.1016/j.electacta.2021.138065

Publisher: Elsevier

Abstract: 
Thin films of a mixture of the perfluorinated phthalocyanines 1,2,3,4,8,9,10,11,15,16,17,18,22,23,24,25-hexadeca-fluorophthalocyaninato copper(II) (F16PcCu) and 1,4,8,11,15,18,22,25-octakis-fluoro2,3,9,10,16,17,23,24-octakis-perfluoro-(isopropyl) phthalocyaninato copper(II) (F64PcCu) of different thicknesses and mixing ratios were prepared by simultaneous vapor deposition. A moderate extent of the intermolecular coupling between F16PcCu and F64PcCu within the mixed films comparable to that reported earlier for tetrakisperfluoroisopropyl-perfluoro phthalocyanine (F40PcCu) was revealed by UV/Vis spectroscopy. The electrochromic properties as well as the transport of electrons and counter cations in the 1:1 F-16 PcCu:F64PcCu mixed films were investigated by electrochemical and spectroelectrochemical characterization using an aqueous solution of KCl as electrolyte. The transport coefficients of electrons and ions of these films were comparable to those reported for F40PcCu films, for which a well-balanced, equally fast transport of both electrons and ions had been seen. Fast, reversible, and stable switching characteristics of the mixed films, upon reduction and intercalation of K+ counterions and re-oxidation with extraction of the counterions, were observed by cyclic voltammetry, chronoamperometry, and simultaneously measured optical absorption spectra. (C) 2021 Elsevier Ltd. All rights reserved.

Harvard Citation style: Nguyen, T., Schafer, M., Pelmus, M., Gorun, S. and Schlettwein, D. (2021) Electron and Ion Transport in Mixed Electrochromic Thin Films of Perfluorinated Phthalocyanines, Electrochimica Acta, 377, Article 138065. https://doi.org/10.1016/j.electacta.2021.138065

APA Citation style: Nguyen, T., Schafer, M., Pelmus, M., Gorun, S., & Schlettwein, D. (2021). Electron and Ion Transport in Mixed Electrochromic Thin Films of Perfluorinated Phthalocyanines. Electrochimica Acta. 377, Article 138065. https://doi.org/10.1016/j.electacta.2021.138065