CESI has a 30-year experience in the research, development and production of high efficiency multi-junction solar cells for space applications.

Our state of the art triple junction cells can convert the solar radiation into electricity with the efficiency above 30% in space applications and are manufactured using III-V compounds (GaAs and InGaP) as base material.

CESI is already at an advanced state of development of quadruple junction solar cells.

The main application of III-V solar cells is in the space, to provide electric power to the satellites.

CESI it’s one of the top worldwide suppliers of multi-junction cells using material as GaAs (Gallium Arsenide), InGaP (Indium Gallium Phosphide).

In this field of technology, CESI can also provide the following services:

  • Supply of solar cells for different application fields
  • Supply of epitaxial wafers according to the customer specifications
  • Preliminary design of photovoltaic panels using GaAs cells
  • Training on solar technology
  • Developing advanced technology solutions

CESI multi-junction solar cells have contributed to more than 60 satellites for over 25 Countries in 30 years.​

CESI multi-junction solar cells are fully qualified for both Low Earth Orbit (LEO) and Geostationary Earth Orbit (GEO) satellites.

CESI has developed close and fruitful cooperation with relevant international space agencies and actors, including those of Europe, Italy and the Russian and Indian ones.

We provide to our worldwide clients both bare multi-junction cells and cells + interconnects + coverglass plus by bypass diode (CIC).

For more information, please contact us at solar@cesi.it