Photoactivity of nano-oxide layers of screen printed DSSC on glass and PET foils

Abstract

Polyethylene-terephthalate (PET) foils and glass slides coated with thin conductive layers were used as substrates for TiO2 or ZnO based photoactive electrodes of dye-sensitized solar cells (DSSC). The nanoparticle oxides were applied onto the substrates in a form of alcohol pastes by screen printing or by doctor blade technique. Photocurrents and I-V load characteristics were measured depending on the solar cell composition and preparation. The influence of thin TiO2 blocking layer prepared by sol-gel technique is discussed.