Sustainable plasmonic photocurrents are generated by gold and silver nanoparticles, located at a TiO2/hole conductor interface. The spectral photocurrent response closely follows the surface plasmon absorption bands of the metal particles. A simple nanoparticle self-assembly method for the solar cell fabrication is presented. Three mechanisms for plasmon-induced charge separation are proposed.
Reineck, P., Lee III, G., Brick, D., Karg, M., Mulvaney, P. C., & Bach, U. (2012). A solid-state plasmonic solar cell via metal nanoparticle self-assembly. Advanced Materials, 24(35), 4750 - 4755. https://doi.org/10.1002/adma.201200994