Thin Film Silicon Solar Cells

R&D Services

Our R&D services comprise:

Deposition of „device quality“ amorphous and microcrystalline films

Passivation of surfaces using amorphous layers

Silicon stack cells

Evaluation of TCO(Transparent Conductive Oxide)-films

New doping sources

High frequency depositions

Development of measurement setups

Thin-film solar cells made from amorphous (a-Si:H) and microcrystalline (µc-Si:H) silicon are a cost-effective alternative to conventional solar cells or modules. Silicon-based amorphous single, tandem and triple junction cells, as well as a-Si:H/µc-Si:H stacked cells, are commercially available. There is, however, still a considerable need for further research into each cell type, especially with regard to increasing efficiency and reducing manufacturing costs.

Our goal is to develop cell structures with initial efficiencies higher than 16 % and a light induced degradation below 10 %.

Selected Research Projects







Unlimited, Resource-saving Solar Cells Based on Metallurgical-grade Silicon



Current publications - Thin Film Silicon Solar Cells