1 research outputs found
Two-Step Growth of 2D Organic–Inorganic Perovskite Microplates and Arrays for Functional Optoelectronics
Two-dimensional
(2D) perovskites have recently attracted intensive
interest for their great stability against moisture, oxygen, and illumination
compared with their three-dimensional (3D) counterparts. However,
their incompatibility with a typical lithography process makes it
difficult to fabricate integrated device arrays and extract basic
optical and electronic parameters from individual devices. Here, we
develop a combination of solution synthesis and a gas–solid-phase
intercalation strategy to achieve hexagonal-shaped 2D perovskite microplates
and arrays for functional optoelectronics. The 2D perovskite microplates
were achieved by first synthesizing the lead iodide (PbI<sub>2</sub>) microplates from an aqueous solution and then following with intercalation
via the vapor transport method. This method further allows us to synthesize
arrays of 2D perovskite microplates and create individual 2D perovskite
microplate-based photodetectors. In particular, chlorine (Cl) can
be efficiently incorporated into the microplates, resulting in significantly
improved performance of the 2D perovskite microplate-based photodetectors