Controlled Synthesis and Photonics Applications of Metal Halide Perovskite Nanowires

Abstract

Metal halide perovskite nanowires (NW)s have recently demonstrated potential applications in integrated photonics devices such as lasers and photodetectors due to their unique physical and chemical characteristics. Here, the rapid progress in the synthesis methods and photonics applications of organic–inorganic hybrid and all‐inorganic halide perovskite NWs are reviewed systematically. The controlled synthesis methods are mainly classified into solution‐phase synthesis, vapor‐phase synthesis, and other synthesis methods. The photonics applications of the halide perovskite NWs, including lasers, photodetectors, solar cells, and other applications, are also introduced and discussed. Finally, the summary and perspectives for halide perovskite NWs are provided.

Perovskite Nanocrystals: Synthesis, Stability, and Optoelectronic Applications

“…The 1D architecture of perovskite NWs has provided a well‐confined carrier transport channel for application as PDs due to their less grain boundary, morphological anisotropy, and good mechanical flexibility. [ 189 ] However, the large surface area of MAPbI 3 NWs could cause much easier carrier recombination and material decomposition, which would be detrimental to the performance and stability of the device. Tang et al used OA soaking to passivate MAPbI 3 NWs’ surface defects to enhance the stability and sensitivity of the perovskite NW‐based PDs.…”

Recent advancements in halide perovskite nanomaterials and their optoelectronic applications

“…The development of vapor‐phase synthetic methods such as chemical vapor deposition (CVD) and epitaxial methods allow for fine control over the properties of NWs 61 . Recently, these methods have been applied to perovskite NWs 62 . MAPbX 3 NWs were first made using CVD by Xing et al 63 Specifically, PbX 2 NWs were grown onto a substrate, which were then converted to perovskite NWs by MAX through a gas–solid reaction 63 .…”

Ligand‐Exchange of Low‐Temperature Synthesized CsPbBr3 Perovskite toward High‐Efficiency Light‐Emitting Diodes

“…The majority of chemical routes to prepare high-quality CsPbX 3 NCs employ a hot-injection method, an approach that unavoidably increases the energy-input of the preparation process, in turn inhibiting the commercialization of CsPbX 3 LEDs. [10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29] A low-temperature fabrication route, that can prepare CsPbX 3 NCs with low defect density and high stability, is therefore highly desired. Toward this end, progress has been made in obtaining high-quality CsPbX 3 NCs at room temperature by a rational choice of ligands in the synthetic process.…”

“…The majority of chemical routes to prepare high‐quality CsPbX 3 NCs employ a hot‐injection method, an approach that unavoidably increases the energy‐input of the preparation process, in turn inhibiting the commercialization of CsPbX 3 LEDs . A low‐temperature fabrication route, that can prepare CsPbX 3 NCs with low defect density and high stability, is therefore highly desired.…”