PHOTOVOLTAIC DEVICE FOR STIMULATION OF CELLS AND/OR ELECTROCHEMICAL REACTIONS

Device (1) for stimulation of at least one cell (2), and/or for stimulation of at least one electrochemical reaction, comprising at least one semiconductor (3) that is configured to convert electromagnetic radiation (4) into a charge separation (5), wherein the semiconductor (3) is planar and the device further comprises a planar metal layer (6), wherein the metal layer (6) forms a Schottky barrier (7), and/or a metal-insulator-semiconductor junction, with the semiconductor layer (3), the semiconductor and/or the metal layer is configured to bind to a cell (2) on contact, and/or configured to repel the cell (2) on contact in order to promote oriented or non-oriented binding to the cell, and/or configured to promote the electrochemical reaction when the device (1) is in contact with a solvent (11). The semiconductor (3) comprises at least one platelet (31) having a planar top face, a planar bottom face, and a circumferential side face that is more or less line-shaped or band-shaped, wherein either the top face or the bottom face of the platelet (31) is coated with the metal layer (6). A system (10) for the stimulation of a plurality of points in a network of cells, comprising a plurality of devices (1) according to the invention dispersed in a solvent (11). Methods (100-140, 210-240) for the fabrication of a plurality of devices (1) according to the invention. A disinfecting or sterilizing agent, and a medicament, with a plurality of devices according to the invention as its active ingredient.