The Fluorescent and Photovoltaic Properties of Meso-Teraphenyl Porphyrins with Different Substituents

Abstract:

The fluorescent and photovoltaic properties of derivatives of selected substituted meso-phenylporphyrins were studied. It was found that the fluorescent intensity could be enhanced by the electron-donating substituent but weakened by the electron-withdrawing subsituent. The photovoltaic properties and charge transfer process of the compounds were investigated by surface photovoltage spectroscopy (SPS) techniques, which revealed that all the compounds are p-type semiconductors. The spectral bands of all porphyrins could be ascribed to π→π* transitions. Comparing with the fluorescent spectral showed that the stronger the fluorescence intensity of porphyrin was, the weaker the surface photovoltage intensity of it was.

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 1387-1390
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.1387
• Online since: December 2011
• Authors: Wei Yin, Huan Bao Fa, Chang Guo Chen, Li Ping Zhang
• Keywords: Fluorescence, Porphyrin, Substituent, Surface Photovoltage

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