Fig. 1From: Facile synthesis of two-dimensional Ruddlesden–Popper perovskite quantum dots with fine-tunable optical propertiesa Schematic illustrating the one-pot synthesis process to prepare the 2D RP perovskite QDs at room temperature. The photographs of 2D RP perovskite QDs with b Br series and c I series dissolved in toluene taken under ambient condition (upper part) and UV light (lower part) (λ = 365 nm)Back to article page