Lab‐to‐Fab: Advances and Challenges in Bifacial Perovskite Solar Cells and Modules

ABSTRACT Bifacial perovskite solar cells (Bi‐PSCs) have emerged as a compelling photovoltaic technology, surpassing the intrinsic energy‐yield limits of monofacial devices by harvesting both direct and reflected light. Their intrinsic advantages, including high efficiency, tunable transparency, lightweight, and compatibility with flexible substrates, position Bi‐PSCs for applications ranging from tandem architectures to building‐integrated photovoltaics and portable power systems. This review provides an overview of recent progress and persistent challenges in bringing Bi‐PSCs from laboratory proof‐of‐principal studies toward scalable module applications. Key themes include the re‐design of device architectures for dual‐sided operation, strategies to balance transparency with efficiency, stability under dual‐sided environmental exposure, and opportunities for large‐area manufacturing. We further highlight emerging approaches that may accelerate industrial adoption. By linking materials innovation with system‐level perspectives, this review outlines a roadmap for realizing high‐performance, durable, and application‐ready Bi‐PSCs.