South Korea develops solar photovoltaic coatings that can be applied to the outside of an automobile to provide energy.

According to foreign media reports, the Korea Institute of Science and Technology (KIST) photoelectrelectrial hybrid research center research team by applying solar cell raw material solution, control its curing speed, developed a large area and efficient organic solar power if a photovoltaic material can be made in the form of paint, and applied to various surfaces such as buildings or cars, it is possible to achieve energy self-sequestration, and energy-poor areas to provide low-cost, environmentally friendly energy.
this technology makes it easy to install photovoltaic technology, even on urban buildings, and such photovoltaic panels can be maintained by reapplying "paint".
processing solar cells by applying solar cell solutions to the surface, it is not yet available for industrial applications.
, due to material and process constraints, the performance of such large-scale photovoltaic solar cells is declining, production difficulties, it is difficult to achieve commercialization.
kitST team revealed that commercial organic materials are easy to crystallize and therefore not suitable for large-area solution processing.
the dissolved solvent of the solar cell material evaporates, forming a film, a very slow process that can lead to phenomena such as reunion, thereby reducing the efficiency of the solar cell.
, however, in laboratory studies, the researchers used a small-area process, the rotary coating method, which quickly rotates the substate during film-forming to accelerate solvent evaporation, thus achieving film-forming without reducing efficiency.
Based on this information, KIST researchers have developed high-performance, large-area organic photovoltaic solar cells that are 30% more efficient than existing solar cells by controlling the evaporation rate of solvents during large-area film formation to form a film that best suits the performance of solar cells.
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