Two SbX5-based isostructural polar 1D hybrid antimony halides with tunable broadband emission, nonlinear optics, and semiconductor properties

Modulating photoelectron localization degree to achieve controllable photoluminescence quenching and activation of 0D hybrid antimony perovskites

“…29,30 In addition, previously reported works have demonstrated that low concentration of metal halide centers significantly results in highly localized photoelectrons, which promotes the formation of electron–hole polarons and STEs, in turn improving the PLQY. 31–33 Hence, reducing the concentration of luminescent species to diminish the CCQ effect and promoting photoelectron localization is pivotal for the realization of high PLQYs in 0D perovskites. However, a rational structural design approach has not yet been shown to accurately manage the CCQ effect to improve the PLQY of 0D perovskite, and this engineering far lags behind the conventional 3D PQD up to date.…”

Organic–Inorganic Hybrid Antimony(III) Halides for Second Harmonic Generation

“…Nonlinear optical (NLO) crystalline materials have been extensively applied for optical devices and thus play an indispensable role in laser and information technologies. − Second harmonic generation (SHG), one of the most popular second-order NLO phenomena, , is the fundamental of the modern laser technique with which the wavelength range of the solid-state laser has been greatly expanded and has been widely used in laser medicine, military, and photolithography techniques. , The noncentrosymmetric (NCS) structure is a precondition for the generation of SHG response, and a high laser damage threshold (LDT) guarantees the practical applications of NLO materials. , Inorganic NLO materials often feature a high LDT with outstanding mechanical properties. However, their structural diversity needs to be extended, and their NLO performances need to be further improved.…”

“…However, the NLO properties of chiral low-dimensional hybrid antimony halides demand further explorations. In 2021, Qi et al reported two SbX 5 -based isostructural polar 1D hybrid antimony halides with NLO properties . Later, Luo et al reported the cooperative enhancement of SHG in an organic–inorganic hybrid antimony halide, which combines the inorganic second-order Jahn–Teller cations in the distorted octahedron [SbCl 6 ] 3– and the organic π-conjugated aromatic amine N , N ,4-trimethylaniline .…”

“…Sb 3+ ions feature stereochemically active lone-pair s 2 electrons that could induce distortions of [SbX n ] ( n −3)– polyhedra with a dynamic feature and improve the probability of obtaining NCS structures and have been wildly used to synthesize hybrid antimony halides. ,, A number of antimony halides, such as (TTA) 2 SbCl 5 (TTA = tetraethylammonium), (TEBA) 2 SbCl 5 (TEBA = benzyltriethylammonium), and (C 9 NH 20 ) 2 SbX 5 (C 9 NH 20 = 1-butyl-1-methylpyrrolidinium), have been demonstrated with promising broadband emission properties . However, the NLO properties of chiral low-dimensional hybrid antimony halides demand further explorations.…”

“…In 2021, Qi et al reported two SbX 5based isostructural polar 1D hybrid antimony halides with NLO properties. 4 Later, Luo et al reported the cooperative enhancement of SHG in an organic−inorganic hybrid antimony halide, which combines the inorganic second-order Jahn−Teller cations in the distorted octahedron [SbCl 6 ] 3− and the organic π-conjugated aromatic amine N,N,4-trimethylaniline. 43 In this work, we have synthesized two pairs of new lowdimensional chiral hybrid antimony halides by combining the organic non-conjugated chiral amine (R/S)-3-aminopiperidine (R/S-3-APD) with Sb 3+ ions.…”