Experimental Study of the Characteristics of Solar Cells Affected by the Angle of Incidence of Illumination

Abstract

As the global energy crisis continues to intensify, the search for alternative energy sources has become increasingly urgent. As an emerging clean energy source, photovoltaic power generation not only effectively reduces carbon dioxide emissions, but also has many advantages such as renewability and distribution. Therefore, photovoltaic solar energy has attracted great attention. This article mainly studies the influence of different incident angles of light on the characteristic parameters of solar panels made of different materials under certain light intensity. Using the control variable method, under a fixed incident angle of light, the intensity of the light source irradiance is adjusted by changing the magnitude of the light source current to obtain the open circuit voltage, short-circuit current, maximum output power, and fill factor under different conditions. Use Origin software to draw characteristic curves and fit the variation pattern of photovoltaic characteristic curves. The basic characteristics of solar photovoltaic cells can be characterized by the relationship curve between their current and voltage. Finally, it is concluded that the basic characteristic parameters of solar cells increase with the increase of light intensity; When the incident angle of light is 75°, the conversion efficiency reaches its maximum.