ALFAMA – Advanced Lightweight and Flexible Array with Mechanical Architecture

Duration: 11/2018 - 10/2021
Contracting Authority/ Sponsors: European Union
Project Partners: AIRBUS DS (FR); CEA (FR); AZUR SPACE Solar Power GmbH (DE); TF2 DEVICES (NL); FRAUNHOFER ISE (D); ABSISKEY (FR)
Website: ALFAMA Project
Project Focus:
Alfama Cell
© Fraunhofer ISE
Ultralight flexible GaInP/GaAs/GaInAs inverted metamorphic triple junction solar cell with an cell area of 22 cm^2. The active solar cell layers have been transferred form the growth substrate to a thin metal foil. The epitaxy process is developed at Fraunhofer ISE, while the project partner TF2 Devices from Nijmegen is responsible for the device processing including the lift-off.

ALFAMA is a European response to current "calls" from the satellite market for more and more energy from the solar wings for satellites while at the same time reducing weight and stowage volume. The goal is the development of a "low cost" and "low weight" as well as a flexible satellite solar wings. Fraunhofer ISE develops inverted metamorphic triple-junction solar cells consisting of GaInP / GaAs / GaInAs which are processed into flexible thin-film cells after removal of the GaAs wafer.     

Further information about the project "ALFAMA" can be found on the project website:

alfamaproject.eu/