Abstract: The present invention relates to an arrangement having at least one solar cell, which is formed by a first sequence of differently doped layers (1, 2, 11, 12) on a substrate (6, 16), and at least one bypass diode, which is connected to the solar cell, particularly in a monolithic, series-connected solar module. The arrangement is characterised in that the bypass diode is formed by a second sequence of layers (4, 5, 13, 14), which is arranged between the substrate (6, 16) and the first layer sequence (1, 2, 11, 12). With the proposed arrangement monolithic, series-connected solar modules can be formed at a very low loss of active receiving surface, the solar cells of which are protected by bypass diodes.

Abstract: A semiconductor structure with active zones, such as light diodes or photodiodes, including a substrate (SUB) with at least two active zones (AZ1-AZn), each of which emits or absorbs a radiation of differing wavelength. According to the invention, a multi-wavelength diode may be achieved, in which a first (lower) active zone (AZ1) is grown on a surface of the substrate (SUB), with one or several further active zones (AZ1-Azn) epitaxially grown one on the other and the active zones (AZ1-AZn) are serially connected from the lower active zone (AZ1) to an upper active zone (AZn), by means of tunnel diodes (TD1-TDn), serving as low-impedance resistors.