The present invention relates to a photovoltaic module characterized by comprising a heat radiating sheet overlaid with a
ceramic coating layer, which is attached to a conventional photovoltaic module. In a method of increasing heat
radiation with the aid of the
ceramic coating layer provided on both sides or one side of the heat radiating sheet, heat generated by a
solar cell due to the differences in thermal
emissivity, thermal
shear rate and surface area of a material is transferred to a solar EVA and then a heat radiating sheet thin plate that serves as a carrier, and returns back to the
ceramic coating layer for emission. A high thermal
emissivity is obtained by having a so-called
heat transfer phenomenon in one direction, which resultantly improves a heat
radiation performance and increases the
refrigeration efficiency of the photovoltaic module and its
peripheral devices to thus lower the
internal temperature. As such, the power
generation rate and efficiency through a module to which the heat radiating sheet is applied can be maximized, and a photovoltaic module with such a heat radiating sheet can maintain a change in the power
generation rate traditionally due to a change in the surface temperature at a constant level, thereby increasing the annual power
generation rate by 3-5% compared to that of the conventional one and improving the power generation effect during the
summer season by 5-10%. Further, wide applicability can be ensured by equally applying the photovoltaic module of the present invention to areas having severe heat or high-temperature and high-
humidity tropical weather as well as desert areas. In addition, the photovoltaic module according to the present invention is advantageous in that it is applicable not only to a new module but also to an already existing module, which makes it possible to manufacture those photovoltaic modules under the same
process conditions as with the conventional ones without modifying the existing equipment.