Terrestrial Stability Of Ito/Inp Solar Cells

ABSTRACT

Solar cells based on ITO/InP have been shown to possess a

remarkable potential for space applications. The determination of

the terrestrial and simulated-space stability of any type of solar

cell is important in obtaining the payload power requirements of a

spacecraft which will be powered by that type of cell. In this

work, a preliminary investigation of the terrestrial stability of

ITO/InP cells has been performed. The cells were stored in the

dark for six months in thermostatically-controlled custom-built

chambers maintained at 25°C and 60°C. Current voltage (I-V) and

capacitance-voltage (C-V) measurements were taken every two weeks

over the six months period. The results show an increase in Isc

which indicates an enhancement in the spectral response of the

cells. The junction carrier concentration, depletion layer widths

and Voc were found to be fairly constant indicating that the

junction is stable under the storage conditions employed,

stability, Indium-Phosphide, Indium-Tin Oxide, Cells Temperature,

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