Innovative Temperature Accelerated Life Test for the determination of the activation energy of space solar cells
- Resource Type
- Conference
- Authors
- Nunez, Neftali; Vazquez, Manuel; Barrutia, Laura; Bautista, Jesus; Lombardero, Ivan; Zamorano, Juan Carlos; Hinojosa, Manuel; Gabas, Mercedes; Algora, Carlos
- Source
- 2019 European Space Power Conference (ESPC) European Space Power Conference (ESPC), 2019. :1-7 Sep, 2019
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Power, Energy and Industry Applications
Photovoltaic cells
Temperature measurement
Current measurement
Degradation
Resistance heating
Junctions
Electrical resistance measurement
space solar cells
accelerated life test
degradation
reliability
activation energy
- Language
Space solar cells have been subjected to an innovative temperature Accelerated Life Test (ALT) to get information on their degradation and their activation energy. Our procedure emulates the thermal stress that solar cells suffer working under space conditions. Solar cells were kept in a climatic chamber under nitrogen atmosphere at three different temperatures for few months. After degradation, results have been fitted to a temperature Arrhenius model, in order to obtain the activation energy and acceleration factor of space GaInP/Ga(In)As/Ge triple junction solar cells.