FIELD: physics.
SUBSTANCE: invention relates to a photovoltaic module (1) having at least two photovoltaic cells (7, 7′) connected in series, each cell (7, 7′) being rectangular in shape and comprising, respectively, a first thin-layer back electrode (5, 5′), a photovoltaic set of at least two active materials (3, 3′) between the back electrode (5, 5′) and a thin-layer transparent conductive (TC) electrode (4, 4′), said TC electrode (4, 4′) being capable of collecting and transmitting electric current (10, 10′) generated by the photovoltaic set (3, 3′), and the two photovoltaic cells (7, 7′) being electrically connected in series by an electric contact strip (6) running along a side enclosed between the TC electrode (4) of the first cell (7) and the back electrode (5′) of the second cell (7′). According to the invention, the local thickness (e) of the thin-layer transparent electrode (4) of the cell (7) decreases as a function of the distance to said electric contact strip (6). The invention also relates to methods of depositing and etching a transparent conductive (TC) layer for making multiple cells (7, 7', 7"…) of one module (1) at the same time.
EFFECT: invention considerably increases efficiency of photovoltaic modules without considerably increasing complexity of said modules and using simple manufacturing methods.
18 cl, 9 dwg
