Bifacial thin film solar cell and method for fabricating the same

Abstract

The present invention relates to a bifacial thin-film solar cell capable of enhancing photovoltaic performance on the rear side by reducing interfacial resistance and recombination characteristics at the interface between the rear transparent electrode and the CIGS in implementing a CIGS-based bifacial thin-film solar cell, and a manufacturing method thereof. The bifacial thin film solar cell according to the present invention is characterized by including: a rear transparent electrode stacked on a transparent substrate; a rear passivation layer stacked on the rear transparent electrode; a conductive thin film pattern formed in some regions on the rear passivation layer; a light-absorbing layer stacked on the front surface of the rear passivation layer including the conductive thin film pattern; a buffer layer stacked on the light-absorbing layer; and a front transparent electrode stacked on the buffer layer.

Dependencies are inferred from the claim text.