A photovoltaic cell was fabricated by sandwiching a monolayer of the pigment cyanidin adsorbed on nano-porous n-TiO, film (deposited on conducting tin oxide glass) within a transparent polycrystalline film of p-CUI, filling the intercrystallite pores of the porous n-TiOn film. Photoexcited dye is found to inject electrons into n-TiO, and holes into p-CUI, generating photocurrents and
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