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<p>Two-dimensional layered perovskites have emerged as a revolutionary class of materials in the field of next-generation solar energy conversion technology. The materials feature alternating layers of organic and inorganic components, and they exhibit greater environmental stability than their three-dimensional counterparts. The special layered structure provides enhanced resistance to moisture, heat, and UV light, which are crucial characteristics for long-term photovoltaic performance. Additionally, the chemical tunability of two-dimensional perovskites provides extensive compositional flexibility to modify their optical and electronic properties, including variations in halides, metal cations, and organic spacers. This is achieved through tunability, which enables the synthesis of wide-bandgap materials suitable for tandem solar cells, flexible devices, and indoor photovoltaic devices. Apart from stability and tunability, two-dimensional perovskites also exhibit potential in enhancing charge transport and exciton confinement, leading to higher power conversion efficiencies and longer device lifetimes. Their quantum well-like nature allows for manipulation of carrier dynamics, making them not only ideal for solar cells but also for light-emitting devices and photodetectors. Furthermore, their compatibility with low-temperature, solution-based fabrication techniques enables scalable and cost-effective production. This review discusses the pivotal contribution of two-dimensional layered perovskites towards the development of photovoltaic devices, highlighting their structural characteristics, environmental stability, and tunable optoelectronic properties. Overcoming long-term operational stability and compositional optimization issues, two-dimensional layered perovskites are a potential platform for the achievement of high-efficiency, sustainable, and flexible solar energy applications. Their synthesis opens the door to future breakthroughs in clean energy harvesting and energy-autonomous systems.</p> Graphical abstract <p></p>

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2D layered perovskites: stability, tunability, and their role in next-generation solar energy conversion

  • 期刊论文

  • 发表日期：

    2026年1月8日

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  • Charan Kuchi,
  • Reddi Mohan Naidu Kalla,
  • Yedluri Anil Kumar,
  • Abdullah G. Al-Sehemi,
  • Ezhakudiyan Ravindran,
  • Sai Krishna Chilaka

摘要

Two-dimensional layered perovskites have emerged as a revolutionary class of materials in the field of next-generation solar energy conversion technology. The materials feature alternating layers of organic and inorganic components, and they exhibit greater environmental stability than their three-dimensional counterparts. The special layered structure provides enhanced resistance to moisture, heat, and UV light, which are crucial characteristics for long-term photovoltaic performance. Additionally, the chemical tunability of two-dimensional perovskites provides extensive compositional flexibility to modify their optical and electronic properties, including variations in halides, metal cations, and organic spacers. This is achieved through tunability, which enables the synthesis of wide-bandgap materials suitable for tandem solar cells, flexible devices, and indoor photovoltaic devices. Apart from stability and tunability, two-dimensional perovskites also exhibit potential in enhancing charge transport and exciton confinement, leading to higher power conversion efficiencies and longer device lifetimes. Their quantum well-like nature allows for manipulation of carrier dynamics, making them not only ideal for solar cells but also for light-emitting devices and photodetectors. Furthermore, their compatibility with low-temperature, solution-based fabrication techniques enables scalable and cost-effective production. This review discusses the pivotal contribution of two-dimensional layered perovskites towards the development of photovoltaic devices, highlighting their structural characteristics, environmental stability, and tunable optoelectronic properties. Overcoming long-term operational stability and compositional optimization issues, two-dimensional layered perovskites are a potential platform for the achievement of high-efficiency, sustainable, and flexible solar energy applications. Their synthesis opens the door to future breakthroughs in clean energy harvesting and energy-autonomous systems.

Graphical abstract