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Concept of a split tandem photovoltaic window

We present a concept of a split tandem photovoltaic window, where the larger wavelengths solar radiations are sent towards horizontal silicon solar cells while short wavelength solar radiations are directed on transparent large band gap solar cells, either dye-sensitized or organic solar cells (DSSC and OSC respectively). We first evaluate the expected enhancement in them of conversion efficiency and then describe the construction of a mini module of this window.