Ecofriendly Organic Solar Cells(OSCs): Electron Donor and Acceptor in the Photoactive Layers

ISBN: 979-8-89480-841-3


Organic photovoltaics (OPVs) are a solar cell technology that utilizes organic materials, such as polymers or small molecules, to generate electricity from sunlight. Unlike conventional silicon-based solar panels, OPVs are constructed from carbon-based materials. These solar cells consist of layers of organic molecules or polymers that function as semiconductors. Within these layers, an electron donor and an electron acceptor work together to produce and direct electrical charges when exposed to sunlight. A notable advantage of OPVs is their flexibility and lightweight design. However, the efficiency of OPVs is currently lower than silicon-based photovoltaics. Typical OPV efficiencies range from 10-15%, compared to the 20-25% achieved by the best silicon panels. Researchers are focusing on enhancing the efficiency and lifespan of OPVs while further reducing their environmental impact. This study utilized computational methods to design and analyze composite materials, focusing on their thermodynamic and electrical efficiencies. Theoretical calculations and simulations enabled the systematic exploration of a wide range of material combinations and configurations, a process that would be impractical using experimental techniques alone. By investigating various geometries, the study identified optimized structures that improve charge carrier mobility. Additionally, the analysis of stereochemical and thermodynamic properties offered valuable insights into the behavior of these materials under different conditions. This understanding is essential for ensuring their stability and optimizing their performance in real-world applications.

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