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Photovoltaic effects in substituted metal-free and metallic sulfophthalocyanines in the photoelectrochemical cell

Domenii publicaţii > Fizica + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: Danuta Wrobel, Andrzej Boguta, Rodica M. Ion

Editorial: Elsevier, Journal of Molecular Structure, 595, p.127-138, 2001.

Rezumat:

Metal-free and magnesium phthalocyanines substituted with long (CH2CH2N+(CH3)3CH3SO4-) chains and amino/nitro groups have been investigated as photoconverters in a sandwich-like photoelectrochemical cell. Photoelectric (photovoltaic spectrum, photocurrent kinetics), electric (current±voltage characteristics) and spectroscopic studies (absorption, Øuorescence, photoacoustics) have been presented. Magnesium phthalocyanine with amino group has been found as the best photosensitizer whereas metal-free phthalocyanine substituted with nitro group shows weak effectiveness in photocurrent generation. The
correlation between spectroscopic/photoelectric properties and molecular structure of dyes is discussed.

Cuvinte cheie: Fluorescenta, Metaloftalocianine, proprietati fotovoltaice, spectre optoacustice, Ftalocianine, Cinetica de fotocurenti, alcool polivinilic; dezactivare termica // Fluorescence; Metallophthalocyanine; Photovoltaic properties; Photoacoustic spectra; Phthalocyanine; Photocurrent kinetics; Polyvinyl alcohol, Thermal deactivation

URL: http://elsevier.com/locate/molstruc