Metal halide perovskites are crystalline materials originally developed out of scientific curiosity. They have shown great potential as active materials in optoelectronic applications. In the last 6 years, their certified photovoltaic efficiencies have reached 22.1%. Compared to bulk halide perovskites, low-dimensional ones exhibited novel physical properties. The photoluminescence quantum yields of perovskite quantum dots are close to 100%. The external quantum efficiencies and current efficiencies of perovskite quantum dot light-emitting diodes have reached 8% and 43 cd A⁻¹, respectively, and their nanowire lasers show ultralow-threshold room-temperature lasing with emission tunability and ease of synthesis. Perovskite nanowire photodetectors reached a responsivity of 10 A W⁻¹ and a specific normalized detectivity of the order of 10¹² Jones. Different from most reported reviews focusing on photovoltaic applications, we summarize the rapid progress in the study of low-dimensional perovskite materials, as well as their promising applications in optoelectronic devices. In particular, we review the wide tunability of fabrication methods and the state-of-the-art research outputs of low-dimensional perovskite optoelectronic devices. Finally, the anticipated challenges and potential for this exciting research are proposed.

金属卤化物钙钛矿是最初出于科学好奇心而开发的晶体材料。它们作为活性材料在光电应用中显示出巨大的潜力。在过去的6年里，他们的认证光伏效率已达到22.1%。与块状卤化物钙钛矿相比，低维钙钛矿表现出新颖的物理特性。钙钛矿量子点的光致发光量子产率接近100%。钙钛矿量子点发光二极管的外量子效率和电流效率分别达到8%和43 cd A ^-1 ，其纳米线激光器表现出超低阈值室温激光，具有发射可调谐性和易于合成的特点。钙钛矿纳米线光电探测器达到了 10 AW ^-1的响应度和 10 ¹² Jones 量级的特定归一化探测率。与大多数报道的专注于光伏应用的评论不同，我们总结了低维钙钛矿材料研究的快速进展及其在光电器件中的前景应用。特别是，我们回顾了低维钙钛矿光电器件的制造方法的广泛可调性和最先进的研究成果。最后，提出了这项令人兴奋的研究的预期挑战和潜力。