NOVELTY - Providing high-efficiency photovoltaic panels including providing plate-like photovoltaic panel having photovoltaic cells which are mutually connected electrically, where cell has semiconductor that is treated chemically with pre-doping elements to form respective n and p layers that can be affected by sunlight followed by doping/coating/solidification steps, involves second doping step in which cells are treated chemically at respective p layers by adding second doping element of Groups 14-17 and rows 3 and 6 of periodic table; coating of cells; and solidification step.    USE - For providing high-efficiency photovoltaic panels (claimed) used for converting solar energy into electric power.    ADVANTAGE - The photovoltaic panels are high-efficiency photovoltaic panels. The method uses a unit for converting solar energy that allows to optimize the maximum power available for each photovoltaic panel in any condition of radiation. The method provides photovoltaic panels that allow to keep the external surface of the photovoltaic panels that is directed toward the rays of the sun always free from external bodies and thus available to absorb the corresponding solar energy. The method is simple, relatively easy to provide in practice, safe in use, effective in operation, and of relatively low cost.    DETAILED DESCRIPTION - Providing high-efficiency photovoltaic panels including a step for providing at least one plate-like photovoltaic panel, which comprises several photovoltaic cells which are mutually connected electrically, each cell comprising a semiconductor that is treated chemically with pre-doping elements in order to form respective n and p layers that can be affected by sunlight, respectively, directly and by diffusion; a first doping step, in which at least one of the photovoltaic cells is treated chemically, at the corresponding n layers, by adding at least one first doping element comprised in Groups 13-16 and rows 2 and 5 of the periodic table of the elements; a step for first coating of the photovoltaic cells, on the side of the respective n layers, with a first mixture, which comprises a polymeric material at concentration of 5-96 wt.% on the weight of the first mixture, at least one chemical element comprised in Groups 11-16 of the periodic table of the elements in a quantity of 0.01-9.5 wt.% on the weight of the first mixture, and enough water to reach 100 wt.% on the weight of the first mixture; a step for first solidification of the first mixture so as to obtain a first layer of a transparent polymeric material that coats the photovoltaic cells on the side of the respective n layers, involves a second doping step, in which the photovoltaic cells are treated chemically, at the respective p layers, by adding at least one second doping element comprised in Groups 14-17 and rows 3 and 6 of the periodic table of the elements; a step for second coating of the photovoltaic cells, on the side of the respective p layers, with a second mixture that comprises the same elements as the first mixture but with a different composition by weight, where the second doping and the second coating are such as to allow collection of sunlight even on the side of the second face of the panel; a step for second solidification of the second mixture so as to obtain a second layer of transparent polymeric material, where the composition by weight of the second mixture is such that the second layer is opaque to diffuse sunlight. The first doping is performed by adding to the photovoltaic cells, at the corresponding n layers, a micrometric layer of carbon, in that the first mixture comprises 10% oxygen, 8% carbon and 82% propane and in that the second doping is performed by adding 62% vinyl groups, 18% carbon (C), 11% water (H2O) and 9% nitrogen (N2). The first and second doping involves a step for heating the photovoltaic cells, which is adapted to increase the interatomic distance of the pre-doping elements; a step for inserting the doping elements; the temperature and the pressure of the heating being a function of the interatomic distance of the pre-doping elements and of the atomic radius of the doping elements; a step for cooling the photovoltaic cells in order to block the doping elements between the atoms of the pre-doping elements. An INDEPENDENT CLAIM is included for a method for segmenting photovoltaic cells involving a step for supplying at least one photovoltaic cell provided with an n layer, which is adapted to be struck directly by sunlight, and a p layer that lies opposite the n layer; on at least one between the n layer and the p layer there being at least one first track for conveying the current and at least one first conveyors for conveying the current to the first track; at least one step for cutting the cell in order to obtain several sub-cells, each of which comprises, at the corresponding n and/or p layers, a portion of the first track; at least one step for providing at least one second track at the n and/or p layer of at least one of the sub-cells.