Metal Halide Perovskite Arrays: From Construction to Optoelectronic Applications

Abstract

Inorganic semiconductor arrays revolutionize many areas of electronics, optoelectronics with the properties of multifunctionality and large-scale integration. Metal halide perovskites are emerging as candidates for next-generation optoelectronic devices due to their excellent optoelectronic properties, ease of processing, and compatibility with flexible substrates. To date, a series of patterning technologies have been applied to perovskites to realize array configurations and nano/microstructured surfaces to further improve device performances. Herein, various construction methods for perovskite crystal or thin film arrays are summarized. The optoelectronic applications of the perovskite arrays are also discussed, in particular, for photodetectors, light-emitting diodes, lasers, and nanogratings.

Piezophototronic Effect in Nanosensors

“…In recent years, new materials, such as 2D materials [ 45–48 ] and perovskite materials, [ 49–53 ] have become one of research hotspots in design of photoelectric nano‐devices, because of their excellent photoelectric properties. Heterojunction PDs based on these materials with high performance, flexibility, and self‐powered can be developed by combining the piezophototronic effect and the advantages of 2D materials and perovskite materials.…”

High‐Stability Patterned CsPbIxBr3−x Thin Films with Tunable Crystal Size Prepared by Solid‐Phase Reaction

“…Compared with conventional photo lithography, the arrays' structure does not suffer any corrosion damage due to the absence of photoresists or other chemical reagents. [21] Photoresist and other disposable templates are expensive, whereas the use of masks could significantly reduce the production cost. [21,22] Moreover, our method Adv.…”

“…[21] Photoresist and other disposable templates are expensive, whereas the use of masks could significantly reduce the production cost. [21,22] Moreover, our method Adv. Optical Mater.…”

“…[20] Whereas, their whole fabrication process based on traditional methods is quite expensive and complex, attributing to requirement of multistep positioning reaction of inorganic perovskite and advanced patterning techniques including E-beam lithography, photolithography, laser direct-write method, anodic aluminum oxide (AAO) template patterning, etc. [21][22][23] Consequently, adopting a solid-phase reaction method in place of traditional liquid-phase and vapor-phase reaction methods could essentially solve these issues.As we know, molecules vigorously diffuse under high temperature. Actually, only when molecule molar ratio of precursors are controlled exactly, and kept within a suitable reaction temperature, can a solid-phase reaction to produce CsPbX 3 inorganic perovskite be successful.…”

“…[20] Whereas, their whole fabrication process based on traditional methods is quite expensive and complex, attributing to requirement of multistep positioning reaction of inorganic perovskite and advanced patterning techniques including E-beam lithography, photolithography, laser direct-write method, anodic aluminum oxide (AAO) template patterning, etc. [21][22][23] Consequently, adopting a solid-phase reaction method in place of traditional liquid-phase and vapor-phase reaction methods could essentially solve these issues.…”