This project aims at the development of an innovative silicon thin film solar module, exhibiting a stabilised active area efficiency of 11% on a substrate size of 30x30 cm2. The device consists of an amorphous silicon/microcrystalline silicon tandem solar cell (micro morph cell) prepared on a low cost TCO coated glass substrate. In view of industrial production, a deposition rate of at least 4 angstrom/s will be achieved for the intrinsic layer of the µc-Si:H bottom cell. Besides the scale-up of state-of-the-art small area micro morph cells prepared by Very High Frequency Glow Discharge, an alternative approach will be followed using lower excitation frequencies, which are more compatible with current a-Si:H production technology. The developments include the module fabrication technology and efficient light trapping schemes. Appropriate characterisation techniques and implementation of advanced plasma control tools will ensure a successful scale-up.
Funding SchemeCSC - Cost-sharing contracts
162 00 Praha 6