Analysis of Temperature Characteristics of an AlGaAs/GaAs/Ge Triple-Junction Solar Cell by IS

Abstract:

Composition of an AlGaAs/GaAs/Ge triple-junction solar cell were analyzed using an equivalent circuit. The currentvoltage (IV) characteristics and impedance spectroscopy (IS) of it were measured in the temperature range from 20°C to 180°C. In the high-temperature range (from 140°C to 200°C) the V_OC changes faster than those in the low-temperature range (from 20°C to 80°C).This is because contribution of the V_OC from the Ge subcell becomes nearly zero in the high temperature. R and C of the bottom subcell keep almost the same in the high temperature.

• Periodical: Advanced Materials Research (Volumes 756-759)
• Pages: 101-104
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.756-759.101
• Online since: September 2013
• Authors: Yi Qing Zhang, Wen Jun Cao, Ai Min Liu
• Keywords: Equivalent Circuit, Impedance Spectroscopy, Solar Cell, Temperature, Triple Junction

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