Cheng Yuanzhuang, Wan Haoyue, Sargent Edward H, Ma Dongxin
Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China.
Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.
Adv Mater. 2025 Jun;37(25):e2410633. doi: 10.1002/adma.202410633. Epub 2024 Sep 19.
Reduced-dimensional perovskites (RDPs), a large category of metal halide perovskites, have attracted considerable attention and shown high potential in the fields of solid-state displays and lighting. RDPs feature a quantum-well-based structure and energy funneling effects. The multiple quantum well (QW) structure endows RDPs with superior energy transfer and high luminescence efficiency. The effect of QW confinement directly depends on the number of inorganic octahedral layers (QW thickness, i.e., n value), so the distribution of n values determines the optoelectronic properties of RDPs. Here, it is focused on the QW thickness distribution of RDPs, detailing its effect on the structural characteristics, carrier recombination dynamics, optoelectronic properties, and applications in light-emitting diodes. The reported distribution control strategies is also summarized and discuss the current challenges and future trends of RDPs. This review aims to provide deep insight into RDPs, with the hope of advancing their further development and applications.
低维钙钛矿（RDPs）是一大类金属卤化物钙钛矿，在固态显示和照明领域引起了广泛关注并展现出巨大潜力。RDPs具有基于量子阱的结构和能量漏斗效应。多量子阱（QW）结构赋予RDPs卓越的能量转移和高发光效率。QW限制效应直接取决于无机八面体层数（QW厚度，即n值），因此n值的分布决定了RDPs的光电性能。在此，重点关注RDPs的QW厚度分布，详细阐述其对结构特征、载流子复合动力学、光电性能以及在发光二极管中的应用的影响。还总结了已报道的分布控制策略，并讨论了RDPs当前面临的挑战和未来趋势。本综述旨在深入洞察RDPs，以期推动其进一步发展和应用。
