Second-order nonlinear optical properties of copper-based hybrid organic–inorganic perovskites induced by chiral amines

Abstract

Recently, chiral hybrid organic-inorganic perovskites (HOIPs) are drawing wide attention due to their intrinsic noncentrosymmetric structures which result in fascinating properties such as ferroelectronics and second-order nonlinear optics (NLO). However,...

Oxidation-Induced Dissolution Recrystallization Structural Transformation Strategy Enhanced Nonlinear Optical Effect of Hybrid Chiral Tin Bromide Single Crystals

“…The results demonstrated the strong SHG signals in the NIR (840–1040 nm) range. The SHG peak’s location, which is peculiarly dependent on the pump wavelength intensity but always occurs at half of the pump wavelength, agrees with several chiral metal hybrid halides reports. − The R -2-mpip­[SnBr 3 ]Br single crystal’s strongest SHG signal was recorded at 500 nm when the pump light was at 1000 nm. SHG signals related to the polarization angle were collected at intervals of 10° in order to study the impact of polarization on the SHG response.…”

Recent progress of copper halide perovskites: properties, synthesis and applications

“…Li et al applied R-/S-NEA (NEA = 1-naphthylethylamine) and R-/S-CYHEA (CYHEA = 1-cyclohexylethylamine) as the A-site cation of CHP and synthesized CHP with circular dichroism. 80 Song et al applied R/S-MBA (MBA = alpha-methylbenzylaminium) as the A-site cation, giving the as-prepared CHP single crystals excellent circularly polarized luminescence. 81 (2) Pressure-induced PL enhancement: Li et al reported significant PL enhancement in CsCu 2 I 3 due to inter- and intratetrahedra distortion at high pressure (Fig.…”

Chiral-induced spin selectivity in biomolecules, hybrid organic–inorganic perovskites and inorganic materials: a comprehensive review on recent progress

“…Additionally, nontoxic blocklike (R,S-NEA) 2 CuCl 4 and needle-like (R,S-CYHEA) 6 Cu 3 Cl 12 single crystals were synthesized in 2023, exhibiting chiral CD signals. 166 Fig. 18 Schematic illustration of spin polarized electron generation for circularly polarized luminescence in the core-shell nanocrystals.…”

“…Additionally, nontoxic block-like ( R , S -NEA) 2 CuCl 4 and needle-like ( R , S -CYHEA) 6 Cu 3 Cl 12 single crystals were synthesized in 2023, exhibiting chiral CD signals. 166…”