High-Performance Organic Solar Cells (OSCs) for a Green Future

Dear Colleagues,

In recent years, polymer solar cells have attracted growing attention in the field of renewable energy, owing to their numerous advantages over traditional silicon-based photovoltaics. Organic solar cells (OSCs) offer unique merits such as light weight and cost-effective production, flexibility, and the potential for large-area fabrication, making them highly suitable for emerging applications, including portable electronics, wearable devices, and building-integrated photovoltaics. The tunability of organic materials allows for a broad range of molecular designs and device structures, contributing to a steady rise in efficiency. Single- and multi-junction configurations have played a significant role in pushing performance boundaries, with recent advances showcasing impressive power conversion efficiencies (PCEs). Among the two key device architectures—conventional and inverted—the inverted structure has gained widespread popularity due to its superior long-term stability, enhanced light-harvesting capabilities, and more efficient charge transport. These advantages have positioned OSCs as a promising candidate in the future energy landscape, capable of complementing or even surpassing existing solar technologies in specific applications.

This Special Issue on "High-Performance Organic Solar Cells (OSCs) for a Green Future" seeks to highlight cutting-edge research and development in the field of OSCs, encouraging contributions that focus on both material and device innovations. The scope encompasses a wide array of topics, including, but not limited to, the synthesis and design of novel organic semiconductors with enhanced optoelectronic properties, the optimization of donor–acceptor interfaces, and advances in morphology control. Submissions exploring the elaboration and fabrication techniques of organic solar devices, including solution-processing methods such as spin-coating, doctor-blading, and roll-to-roll printing, are highly encouraged. Additionally, this Special Issue seeks contributions addressing stability challenges, including encapsulation strategies and degradation mechanisms, as well as novel approaches to improving device performance through tandem structures or plasmonic enhancements. Studies on in-depth characterization of these devices, including advanced techniques for probing charge transport, recombination losses, and lifetime analysis, are equally welcomed. The goal of this Special Issue is to present a comprehensive view of the current state of organic solar cells and chart a course for future advancements, particularly those that will bring OSCs closer to large-scale commercialization.

Dr. Safae Aazou
Prof. Dr. Daniel Ayuk Mbi Egbe
Guest Editors

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• organic solar cells
• novel organic semiconductors
• donor-acceptor interfaces
• solution-processing methods
• charge transport
• recombination losses
• stability, encapsulation and degradation mechanisms of OSCs
• lifetime analysis
• simulation and modeling