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Two squarylium cyanine dyes (Sqs) were synthesized to explore their applications in photoelectrochemical solar cells. Nanocrystalline TiO2 electrodes modified with Sqs have been prepared to probe the photosensitization effects. A rather high photoelectric conversion efficiency of up to 2.17% and the top incident monochromatic photon-to-photocurrent conversion efficiency (IPCE) of 6.2% at 650nm were obtained from the Sq2-modified nanocrystalline TiO2 electrode.
Two squarylium cyanine dyes (Sqs) were synthesized to explore their applications in photoelectrochemical solar cells. A rather high brightness conversion up to 2.17% and the top incident monochromatic photon -to-photocurrent conversion efficiency (IPCE) of 6.2% at 650 nm were obtained from the Sq2-modified nanocrystalline TiO2 electrode.