An analytical study of the various current components of an AlGaAs/GaAs multiple quantum well solar cell

An analytical study has been carried out on the photo-generated current of an AlGaAs/GaAs multiple quantum well solar cell. The expressions for the various current components and the total current of the cell have been obtained. Suitable modifications have been incorporated in the theoretical work reported earlier by several researchers in this topic. Based on this analysis the temperature dependence of the various current components and the total current of the cell have been investigated. It has been observed that the output current is a strong function of the temperature of the device.

Graphical AbstractFigure optionsDownload as PowerPoint slideAnalytical study on the various current components of an AlGaAs/GaAs multiple quantum well solar cell has been carried out. Figure given below shows the variation of the total current density with temperature for a chosen multiple quantum well solar cell. The corresponding variation with temperature of the tunneling current density, thermionic current density and the photo-generated current density in the base region are also shown. It is observed that the current density is strongly dependent on the temperature.