Nanocomposites for organic and hybrid organic-inorganic solar cells

The importance of nanocomposites materials such as carbon nanotubes-polymers composites for the efficient realization of innovative solar cells based on organic as well hybrid organic-inorganic solar cells is more and more evident. We present a study on the realization of dye sensitized solar cells (DSSC) and sublimation deposited solar cells, considering the impact of using nanocomposite materials in the different sections composing the cells. We discuss the effect of using poly-3,4-ethylene dioxythiophene/poly(styrene sulfonate) (PEDOT/PSS)-Carbon nanotube (CNT) blend as counter-electrode in DSSC on the cell efficiency and fill factor, also considering DSSC structures where low cost, innovative dyes are used. Nanocomposites can be used as solution processed or electropolimerized electrodes, where accurate control of nanotube dispersion is obtained through specific chemical treatment of Carbon nanotubes solubility. The use of Carbon based nanostructured material is also investigated in terms of their positive impact on the realization of organic solar cells on flexible substrates.