Are there mistakes? The topic of my research is generation-recombination processes in heterostructures with one-dimensional nanostructures. A search alternative energy source is the one of the discussion questions. A lot of scientist try to find the best material and structure for solar cells. So, we decided to research one of the semiconductors - heterostructures InGaAs/GaAs. We are studying semiconductors samples InGaAs\GaAs with nanowires and without them. The samples were grown by molecular beam epitaxy. We have investigated J-V-dependencies. Also we have found and analized an ideality factor for this structures at first time. For more information about the recombination processes kinetic of photo-voltage was measured in the studied systems. And also photovoltage spectrum were studied.