Sputtered Nb2O5 as an effective blocking layer at conducting glass and TiO2 interfaces in ionic liquid-based dye-sensitized solar cells.
The thin Nb(2)O(5) layer works as a remarkable blocking layer when deposited by the rf magnetron sputtering method between fluorine-doped tin oxide and a mesoporous TiO(2) layer, improving open-circuit photovoltage (V(oc)) and fill factor (FF) with power conversion efficiency over 5.5% at 1 sun irradiation of the dye-sensitized TiO(2) solar cells using ionic liquid electrolytes.
Xia
Jiangbin
J
Center for Advanced Science and Innovation, Osaka University, Suita, Osaka 565-0871, Japan.
Masaki
Naruhiko
N
Jiang
Kejian
K
Yanagida
Shozo
S