From Rigid to Flexible: Progress, Challenges and Prospects of Thin c‐Si Solar Energy Devices

The increasing adoption of solar energy as a renewable power source marks a significant shift toward clean, sustainable alternatives to conventional energy forms. A notable development in this field is the advancement of thin monocrystalline silicon (c‐Si) solar cells. Characterized by their lightweight, flexible nature, these solar cells promise to transform the renewable energy landscape with enhanced durability, adaptability, and portability. Amidst the growing demand for sustainable energy solutions, refining and evolving thin c‐Si solar cell technologies is crucial. This review comprehensively examines the latest progress in thin c‐Si solar energy conversion device technologies, offering an extensive overview of current methodologies for producing thin c‐Si films, advanced light trapping techniques, surface passivation strategies, and methods for managing thin wafers. It also explores the wide‐ranging applications of thin c‐Si solar cells. Furthermore, this article sheds light on the techno‐economic aspects, highlighting the intertwined challenges of commercializing these innovative cells. Through an in‐depth analysis of the latest advancements, this review serves as a valuable resource for researchers and industry experts, keeping them abreast of current trends and catalyzing further advancements in thin c‐Si solar cell technology. This review comprehensively explores recent advancements in thin c‐Si solar energy devices, including techniques for producing thin films, advanced light trapping methods, surface passivation strategies, and thin wafer management approaches. It also explores the wide‐ranging applications of thin c‐Si solar cells and sheds light on the techno‐economic aspects, highlighting the intertwined challenges of commercializing these innovative cells.