Photoelectrochemical and optical characterization of Prussian blue onto p-Si(100)

Eduardo C. Muñoz, Rodrigo G. Henríquez, Ricardo A. Córdova, Ricardo S. Schrebler, Regina Cisternas, Luis Ballesteros, Ricardo E. Marotti, Enrique A. Dalchiele

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Abstract

In this study, we examined the characterization of Prussian blue deposited onto p-Si(100). A cyclic voltammetry analysis was carried out under illumination showing quasireversibility responses of high and low-spin iron centres in the deposit. Optical measurements were done, where XRD analysis allowed to determine crystallinity while EDS analysis indicated that there is influence in the number of cycles on the film composition. Reflectance measurements confirm the coloration observed in the films. However a Kubelka-Munk analysis demonstrates the presence of blue greenish coloration which is an indication of a mix between Prussian blue and Berlin green films. Finally, this research is oriented to construct electrochemical storage devices which can be in situ loaded by the photovoltaic action of the semiconductor base material-doped silicon.

Original languageEnglish
Pages (from-to)165-171
Number of pages7
JournalJournal of Solid State Electrochemistry
Volume16
Issue number1
DOIs
StatePublished - Jan 2012
Externally publishedYes

Keywords

  • Electrochemical behaviour
  • Optical behaviour
  • P-silicon
  • Prussian blue

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