Synthesis, crystal structures, second harmonic generation response and temperature phase transitions of two noncentrosymmetric Cu(II)-hybrid halides compounds: [(R)-C7H16N2][CuX4] (X = Cl or Br)

Hajlaoui, Fadhel; Sadok, Inès Ben; Aeshah, H. Alamri; Audebrand, Nathalie; Roisnel, Thierry; Zouari, N.

doi:10.1016/j.molstruc.2019.01.035

Cited by 22 publications

(9 citation statements)

References 38 publications

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“…Lead-free chiral HOIPs based on tin 110,111 , bismuth 37 , copper [112][113][114] , manganese 41 , cadmium 115 and cobalt 116 , were also reported, yet their chiroptoelectronic and chirospintronic properties have not been studied yet.…”

Section: [H2] Chirality Through Chiral Ligands [H3] Direct Synthesismentioning

confidence: 99%

Chiral-perovskite optoelectronics

et al. 2020

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Hybrid organic-inorganic perovskites (HOIPs) offer long carrier diffusion lengths, high absorption coefficients, tunable bandgaps and long spin lifetimes. The flexible crystal structure and ionic nature of HOIPs makes it possible to allow tune their material properties through rational design, including the incorporation of chiral organic ligands. Recently, chiral HOIPs have emerged as promising materials for chiroptoelectronics, spintronics and ferroelectricity. They exhibit high photoluminescence polarization (17% without an external magnetic field), good device performance (a circularly polarized photodetector had 100 times higher responsivity than one based on chiral metasurface) and high saturated polarization (~2 times higher than that of barium titanate). Here we review the latest advances in chiral HOIPs and investigate the specific benefits of combining chiral organic and inorganic components in perovskites. We discuss demonstrations of chiroptical and ferroelectric applications, and conclude with our perspective on the future opportunities for chiral HOIPs.

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Section: [H2] Chirality Through Chiral Ligands [H3] Direct Synthesismentioning

confidence: 99%

Chiral-perovskite optoelectronics

et al. 2020

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“…The non-centrosymmetric chemical structure of chiral perovskites implies their potential in nonlinear optics applications. Second-harmonic generation (SHG), a special type of the second-order nonlinear optics response, was first performed in chiral 2D perovskite nanowires (R-and S-MPEA)1.5PbBr3.5(DMSO)0.5 and thereafter in various chiral perovskites 699,[709][710][711][712][713][714] . Those studies shown that SHG signals always depend on polarization, particle size, temperature or wavelength.…”

Section: Chiral 2d Perovskitesmentioning

confidence: 99%

Recent Progress on Two-Dimensional Materials

Chang¹,

Chen²,

Chen³

et al. 2021

Acta Physico Chimica Sinica

310

119

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Research on two-dimensional (2D) materials has been explosively increasing in last seventeen years in varying subjects including condensed matter physics, electronic engineering, materials science, and chemistry since the mechanical exfoliation of graphene in 2004. Starting from graphene, 2D materials now have become a big family with numerous members and diverse categories. The unique structural features and physicochemical properties of 2D materials make them one class of the most appealing candidates for a wide range of potential applications.In particular, we have seen some major breakthroughs made in the field of 2D materials in last five years not only in developing novel synthetic methods and exploring new structures/properties but also in identifying innovative applications and pushing forward commercialisation. In this review, we provide a critical summary on the recent progress made in the field of 2D materials with a particular focus on last five years. After a brief background 物理化学学报 Acta Phys. -Chim. Sin. 2021, 37 (12), 2108017 (3 of 151) introduction, we first discuss the major synthetic methods for 2D materials, including the mechanical exfoliation, liquid exfoliation, vapor phase deposition, and wet-chemical synthesis as well as phase engineering of 2D materials belonging to the field of phase engineering of nanomaterials (PEN). We then introduce the superconducting/optical/magnetic properties and chirality of 2D materials along with newly emerging magic angle 2D superlattices. Following that, the promising applications of 2D materials in electronics, optoelectronics, catalysis, energy storage, solar cells, biomedicine, sensors, environments, etc. are described sequentially. Thereafter, we present the theoretic calculations and simulations of 2D materials. Finally, after concluding the current progress, we provide some personal discussions on the existing challenges and future outlooks in this rapidly developing field.

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“…Since the first report by Billing in 2006, [24] several chiral MHSs have been synthesized [9,15,24–31] . The most common structure adopts a 2D lead‐halide perovskite structure with chiral aromatic ammonium as the templating cations.…”

Section: Introductionmentioning

confidence: 99%

“…Since the first report by Billing in 2006, [24] several chiral MHSs have been synthesized. [9,15,[24][25][26][27][28][29][30][31] The most common structure adopts a 2D lead-halide perovskite structure with chiral aromatic ammonium as the templating cations. Although circularly polarized absorption and emission from the inorganic lead-halide framework have been observed, the exact chirality origin of the inorganic sublattice remains elusive.…”

Section: Introductionmentioning

confidence: 99%

Structural Asymmetry and Chiroptical Activity of Chiral Antimony‐Halide Hybrids

et al. 2022

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Chiral metal‐halide hybrids have aroused widespread attention owing to their chemical and structural versatilities as well as unique optoelectronic and spin‐dependent properties. Several recent experiments have shown that organic chirality results in circularly polarized absorption and emission from the inorganic metal‐halide subcomponent; however, the exact structure chirality transfer mechanism and structure‐optical‐activity relation remain elusive. Here, we demonstrate how chiral organic cations lead to local structural asymmetry in a new series of chiral antimony‐halide hybrids, including zero‐dimensional edge‐shared (0D, A4Sb2X10, A=(R)‐(+)‐α‐methylbenzylammonium (R‐MBAH+) or (R)‐(−)‐1‐cyclohexylethylammonium (R‐CHEAH+), X=Br, I) and one‐dimensional corner‐shared (1D, A’2SbX5, A’=(R)‐(+)‐α‐ethylbenzylammonium (R‐EBAH+); X=Br, I). Structure analysis shows that organic ammoniums distort the antimony‐halide octahedra through asymmetric hydrogen bonding. The chiroptical activity is correlated with the exciton coupling strength, which can be tuned by the structural dimensionality. Our study unveils the molecular scale chirality transfer mechanism in these chiral metal‐halide hybrids.

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Synthesis, crystal structures, second harmonic generation response and temperature phase transitions of two noncentrosymmetric Cu(II)-hybrid halides compounds: [(R)-C7H16N2][CuX4] (X = Cl or Br)

Cited by 22 publications

References 38 publications

Chiral-perovskite optoelectronics

Chiral-perovskite optoelectronics

Recent Progress on Two-Dimensional Materials

Structural Asymmetry and Chiroptical Activity of Chiral Antimony‐Halide Hybrids

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