Organic Materials Engineering for Sustainable Perovskite Solar Cells

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Engineering notes will be added by the Power for Solar editorial team.

Chinese explanation / 中文解读

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Original abstract

Organic materials have become indispensable to the rapid advancement of perovskite solar cells (PSCs), owing to their intrinsic molecular tunability, excellent interfacial compatibility, and particular multifunctional versatility. This chapter presents a systematic overview of their diverse roles in PSCs. It begins with organic hole-transporting and electron-transporting materials, highlighting how rational molecular design enables efficient charge extraction and transport. It then introduces organic self-assembled monolayers as a powerful interfacial engineering strategy for defect passivation and energy-level alignment. Beyond charge–transport layers, the chapter further explores the incorporation of organic components into perovskite systems, including organic–inorganic hybrid perovskites and organic-mediated 2D/3D architectures. In these systems, organic species play key roles in regulating crystallization, enhancing structural stability, and tuning optoelectronic properties. The integration of organic materials in tandem configurations, particularly perovskite–organic tandem solar cells, is also discussed as a promising route toward high-efficiency and scalable photovoltaics. Finally, the chapter summarizes key design principles, emphasizing the interplay between molecular structure, interfacial physics, and device performance. Future perspectives are outlined, with a focus on multifunctional organic materials to advance next-generation sustainable perovskite photovoltaics.

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