Challenges in Developing Perovskite Nanocrystals for Commercial Applications

Abstract Zero‐dimensional lead halide perovskite nanocrystals (NCs) exhibit size‐dependent bandgap and carrier confinement compared to bulk counterparts due to the quantum confinement effect, making them essential for achieving wide‐color‐gamut displays, studying excitonic spin relaxation, and constructing superlattices. Despite their promising potential, they face a variety of technical bottlenecks, such as insufficient color reproducibility, limited large‐scale production, low stability, and toxicity. An outline of a research roadmap is provided in the review, which highlights key challenges in developing perovskite NCs for commercial applications.