Thin film

The NLV Quant is coated with a thin film made of pyrite, which converts light into electricity to supply the operating electronics and also support the battery. This innovative pyrite technology is cost-effective, efficient and ecological.

NLV Solar AG has developed an iron-sulphur composite semiconductor using digital prototyping, with very promising results. The research indicates:

• an average photovoltaic conversion efficiency of 38%, depending on ambient conditions, and a peak performance of over 50%
• the possibility of fine-tuning the material’s absorption characteristics by modification of its crystal lattice structure using ion implantation; stacked in a multilayer thin-film cell, it would be possible to tune each layer to a different target absorption frequency
• as a thin-film cell, the material could be applied to substrates in a transparent, semi-transparent or tinted coating
• the projected degradation coefficient is only 5–6% over 20 years