Gan Shan, Sun Haoxuan, Li Chen, Dou Da, Li Liang
School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou 215006, China.
School of Physical Science and Technology, Jiangsu Key Laboratory of Thin Films, Center for Energy Conversion Materials & Physics (CECMP), Soochow University, Suzhou 215006, China.
Sci Bull (Beijing). 2023 Oct 15;68(19):2247-2267. doi: 10.1016/j.scib.2023.08.043. Epub 2023 Aug 23.
Perovskite solar cells (PSCs) have achieved remarkable progress in the past decade and become the most powerful challenger of traditional silicon photovoltaics. Among the many designs, bifacial PSCs have received widespread attention these days due to their ability to fully utilize environmental reflection and scattering light to enhance energy yield. They also can provide better aesthetic design for building-integrated photovoltaics (BIPVs). However, the potential of bifacial PSCs is not limited to these traditional applications. Importantly, such architecture also serves as a universal component for multi-junction cells and photon engineering, which are both critical for further efficiency improvement. In this review, the requirements of different functional layers under various applications are described in detail, starting from the structure of bifacial PSCs. The application developments are introduced, including albedo utilization, semitransparent PSCs (ST-PSCs), TSCs. The present issues (such as stability, large area, recombination of carriers at the back electrode and toxicity etc.) and the extra challenges of bifacial PSCs are highlighted. It is hoped that this review can provide new ideas for the future development and further improve the competitiveness of PSCs.
在过去十年中，钙钛矿太阳能电池（PSCs）取得了显著进展，成为传统硅光伏电池最有力的挑战者。在众多设计中，双面PSCs因其能够充分利用环境反射光和散射光来提高能量产量，近年来受到了广泛关注。它们还可为建筑一体化光伏（BIPV）提供更好的美学设计。然而，双面PSCs的潜力并不局限于这些传统应用。重要的是，这种结构还可作为多结电池和光子工程的通用组件，这两者对于进一步提高效率都至关重要。在本综述中，从双面PSCs的结构出发，详细描述了各种应用下不同功能层的要求。介绍了其应用进展，包括反照率利用、半透明PSCs（ST-PSCs）、热载流子太阳能电池（TSCs）。突出了当前存在的问题（如稳定性、大面积、背电极处载流子复合以及毒性等）以及双面PSCs面临的额外挑战。希望本综述能为未来的发展提供新思路，并进一步提高PSCs的竞争力。
