▎ 摘　　要

NOVELTY - Fabricating (m1) a perovskite device, comprises: providing a metal substrate (1); forming a self-assembled molecular monolayer on top of the metal substrate; and forming the perovskite material on top of the self-assembled molecular monolayer. USE - The methods are useful: for fabricating perovskite device; and manufacturing a solar cell (claimed). ADVANTAGE - The method: enables creation of defect-free perovskite crystals with desired morphology and crystallinity in a controlled way; enhances the stability of the perovskite materials; is scalable; and is economical. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a perovskite device comprising a metal substrate, a self-assembled molecular monolayer on top of the metal substrate, a perovskite material on top of the self-assembled molecular monolayer, and an electron-collector electrode deposited on top of the perovskite material; and (2) manufacturing (m2) a solar cell, comprising providing a metal substrate, forming a self-assembled molecular monolayer on top of the metal substrate, forming the perovskite material on top of the self-assembled molecular monolayer, and depositing an electron-collector electrode on top of the perovskite material. DESCRIPTION OF DRAWING(S) - The figure shows a substrate immersed in a solution containing n-hexane molecules with one or both of thiol- and amine-end groups. Substrate (1) Amine-end groups (3)