Abstract
In the past decade, lead halide perovskites have emerged as potential optoelectronic materials in the fields of light-emitting diode, solar cell, photodetector, and laser, due to their low-cost synthesis method, tunable bandgap, high quantum yield, large absorption, gain coefficient, and low trap-state densities. In this review, we present a comprehensive discussion of lead halide perovskite applications, with an emphasis on recent advances in synthetic strategies, morphology control, and lasing performance. In particular, the synthetic strategies of solution and vapor progress and the morphology control of perovskite nanocrystals are reviewed. Furthermore, we systematically discuss the latest development of perovskite laser with various fundamental performances, which are highly dependent on the dimension and size of nanocrystals. Finally, considering current challenges and perspectives on the development of lead halide perovskite nanocrystals, we provide an outlook on achieving high-quality lead perovskite lasers and expanding their practical applications.
Highlights
Research related to perovskites can be traced back to 1970s,1–3 but systematic research was lacking due to technology limitations in that period
Lin et al.[159] fabricated a large-area CsPbX3 quantum dots (QDs) array by a photolithographical approach, which could be used as efficient lasing structures and emitting pixel arrays [Figs. 13(g)–13(i)]. They realized whispering gallery mode (WGM) lasing from the QD arrays with high Q factor and demonstrated that this patterning technique can be used in large-area perovskite laser arrays with multicolor pixels [Fig. 13(g)]
These results demonstrated that SPs could modulate the performance of perovskite lasers and can realize deep subdiffraction plasmonic lasers
Summary
Research related to perovskites can be traced back to 1970s,1–3 but systematic research was lacking due to technology limitations in that period. The advances in lasing performance mainly benefit from the excellent optical properties such as high photoluminescence quantum yield (PLQY), narrow linewidth, large absorption coefficient, and widely tuned band.[28,29,30,31,32] In addition, the shape and size of perovskite could be flexibly adjusted, which can affect their physical and chemical properties and the performance of optoelectrical devices.[33,34,35,36] various. The size can be adjusted from several nanometers to microns, and the morphologies can be controlled as zero-dimension (0D) quantum dots (QDs), one-dimensional (1D) nanorods (NRs) and nanowires (NWs), two-dimensional (2D) nanoplates (NPs) and nanosheets (NSs), and three-dimensional (3D) nanocubes and microspheres (MSs).[37,38,39,40,41,42] In this review, we discuss and summarize the recent developments in lead halide perovskite materials and perovskite-based lasers. We present a summary and the perspectives of future research in the perovskite-based laser
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