Abstract
Novel transparent composite thin film electrodes with embedded multi-walled carbon nanotubes (MWCNTs) were fabricated in this study. Their optical properties were explored for applications as cathodes in optoelectronic devices, such as solar cells. The optical properties of the MWCNTs composite thin film were measured in the UV-Vis and IR regions. The films fabricated had tunable transparency from 85% to 80% at 550nm. In the IR region the absorption maxima were at 1151nm, 1203nm, 1223nm, and 1630nm. The band-gap of the films was 3.82 and complementary to the band-gaps of common conjugated polymers for organic solar cells.
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