Enhancing the efficiency of dye sensitized solar cells with an SnO2 blocking layer grown by nanocluster deposition

SnO2 blocking layers of various thicknesses were tested for an enhancement to the efficiency of dye-sensitized solar cells (DSSCs). The blocking layers were placed onto FTO/glass substrates at 240 °C using a nanocluster deposition (NCD) technique. The root mean square (rms) roughness of the FTO with 120 nm-thick SnO2 blocking layers showed an increase of about 15% compared with that of a bare-FTO, and the transmittance of the SnO2/FTO structures...