One-dimensional CsPbBr 3 superlattices with polarized and amplified spontaneous circularly polarized emissions

Nature Communications, Published online: 23 May 2026; doi:10.1038/s41467-026-73513-2 Nanocrystal superlattices typically occur in two- and three-dimensional configurations, constrained to the micrometer scale and with limited size tunability. Here, the authors assemble CsPbBr3 nanoplatelets into chiroptically active 1D helical superlattices with mm lengths and μm widths.