AN TERRESTERIAL INVESTIGATION OF MATERIAL'S DEGRADATION MECHANISMS IN SILICON SOLAR CELLS, WHICH RETURNED FROM 'MIR' SPACE STATION AFTER TEN YEARS EXPLOITATION

摘要

The main factors influencing the degradation of solar cells in near Earth space were determined and investigated. For this purpose samples exploited on board MIR space station for ten years and stored during all this time on Earth were studied. The analysis of temperature dependence of series R_s and shunting R_(sh) resistance demonstrates a good correlation with the model of trapping -detrapping trough defect states in the space charge region. Also we find the influence of the micrometeoroid's damage on the temperature dependence of the ideality factor A.