Characterisation of Porphyrin-TiO_2 Complex Using Raman Spectroscopy and Electron Paramagnetic Resonance

• Authors: M. Kotkowiak , H. Manikowski , M. Wieczorowski , A. Dudkowiak
• Languages of publication: EN

Abstracts

EN

A complex of meso-tetrakis (4-sulphonatophenyl) porphyrin covalently linked to titanium dioxide has been studied. Illumination of the complex with visible light was shown to result in formation of cationic radicals of the porphyrin. Shape and kinetics of the electron spin resonance signals were analysed which permitted calculation of spectroscopic parameters characterising the photoinduced process of the radicals formation. The dye-semiconductor complex was thoroughly characterised to indicate its possible applications.

Keywords

EN

33.20.Fb; 78.30.Fs; 33.35.+r

Discipline

• 33.20.Fb: Raman and Rayleigh spectra (including optical scattering)
• 33.35.+r: Electron resonance and relaxation(see also 76.30.-v Electron paramagnetic resonance and relaxation in condensed matter)
• 78.30.Fs: III-V and II-VI semiconductors

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 2
• Pages: 353-356

Dates

published

2012-08

Contributors

author

M. Kotkowiak

• Institute of Physics, Poznań University of Technology, Nieszawska 13a, 61-965 Poznań, Poland

author

H. Manikowski

• Institute of Physics, Poznań University of Technology, Nieszawska 13a, 61-965 Poznań, Poland

author

M. Wieczorowski

• Institute of Mechanical Technology, Poznań University of Technology, Piotrowo 3, 61-965 Poznań, Poland

author

A. Dudkowiak

• Institute of Physics, Poznań University of Technology, Nieszawska 13a, 61-965 Poznań, Poland

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Identifiers

DOI

10.12693/APhysPolA.122.353