Achieving comparable power conversion efficiency of organic solar cells by using environment-friendly solvents

The primary challenge facing the contemporary world is the need for more reliable and replicable energy sources. Currently, the utmost crucial requirement for living in society is the availability of boundless energy resources. Extensive research has proved that solar energy is the most reliable and repeatable source. The inexhaustible energy source can be used to meet our energy requirements. Solar cells are devices that transform solar light into electrical power. Silicon solar cells are predominantly utilised worldwide among the many types of solar cells. However, much research is being conducted on organic solar cells, which differ from inorganic solar cells. Organic solar cells include both benefits and drawbacks. The primary benefits of organic solar cells are their affordability and the simplicity of their processing conditions.

However, a significant drawback is the use of hazardous solvents in the fabrication of solution-processed OSCs. By utilising halogenated solvents that are frequently employed, one might get exceptionally effective devices. We endeavour to substitute halogenated solvents with eco-friendly solvents to fabricate environmentally sustainable organic solar cells. We have successfully attained a similar level of efficiency in organic solar cells that use green solvents compared to those that use halogenated solvents, using the inverted device structure ITO/ZnO/PTB7-Th: PC71BM/MoO3/Ag. We are also examining the additional electrical and optical properties of the Green solvent-treated OSCs to make comparisons with the well-researched ODCB-processed solvents.