Halide perovskite single crystals: growth, characterization, and stability for optoelectronic applications

Abstract

Recently, metal-halide perovskite materials have received significant attention as promising candidates for optoelectronic applications with tremendous achievements, owing to their outstanding optoelectronic properties and facile solution-processed fabrication. However, the existence...

Hybrid Lead Bromide Perovskite Single Crystals Coupled with a Zinc(II) Complex for White Light Emission

“…Metal halide perovskite single crystals (MHPSCs) provide an imperative choice for photovoltaics and optoelectronic devices with higher efficacy. − The higher carrier mobility, ultralow trap density, long-range order in the crystal lattice, longer carrier diffusion length, fewer grain boundaries and enhanced thermal, moisture and light stability of MHPSCs make them advantageous and preferable optical materials toward fabricating new optoelectronic devices in comparison to their polycrystalline forms. − The optical characteristics such as high quantum efficiency, composition tunable optical band gap, broad absorption spectrum, narrow emission spectrum, high molar absorption coefficient and high power conversion efficiency of MHPSCs are superior to those of their polycrystalline counterparts. These are the central motives of attention for their utilization in research areas ranging from solar cells and photovoltaics to light emitting devices (LEDs) and high-energy radiation detectors applications. − In other words, MHPSCs differ significantly from their polycrystalline properties including the morphology and optical properties and thus are applicable for the improvement of high-performance and stable optoelectronic devices such as solar cells, LEDs, high-energy radiation detectors and flexible electronic devices. − Among the MHPSCs family, hybrid lead bromide perovskites SCs (HLBPSCs) have demonstrated their utility ranging from solar cells to light emitting materials. − For example, the easy solution-based synthesis, high crystalline eminence and substantial stability of HLBPSCs, especially methylammonium lead bromide (CH 3 NH 3 PbBr 3 = MAPbBr 3 ), have demonstrated their practical use in fabricating radiation detectors, photodetectors and solar cells with higher performance and longevity. − In addition, HLBPSCs showed their use in fabricating highly stable and efficient single color emitting LEDs. − However, the optoelectronic applications of HLBPSCs are less widely studied especially for the fabrication of newer white light emitting (WLE) materials. Therefor...…”

Growth of Hybrid Perovskite Crystals from CH3NH3PbI3–xClx Solutions Subjected to Constant Solvent Evaporation Rates

“…Nonetheless, this aspect is highly important because perovskite crystals have been shown to display important advantages, such as enhanced optoelectronic properties (high absorption coefficient, extended diffusion length, improved charge carrier mobility, etc.) and stability [ 33 , 34 , 35 , 36 ]. Such qualities make them highly suitable for applications like solar cells, light-emitting diodes, photodetectors, lasers, etc.…”

Doping/Alloying Pathways to Lead‐Free Halide Perovskites with Ultimate Photoluminescence Quantum Yields

“…The rapid development of lead halide perovskites as a highly promising class of solar cell absorbers has provoked an avalanche of research activity on the photophysics and photovoltaic properties, as well as on the chemistry of formation and degradation of APbX 3 compounds, where A is an organic/inorganic cation and X = Cl, Br, I. [1][2][3][4] The inherent environmental and photochemical instability of Pbperovskites combined with obvious ecological concerns related to their large-scale production and recycling stimulated active research on semiconducting lead-free analogs. [3,[5][6][7][8][9] Compared to their lead-based counterparts, the halide semiconducting lead-free perovskites (LFPs) feature an incredibly broad compositional variability.…”