A new lead-free 1D hybrid copper perovskite and its structural, thermal, vibrational, optical and magnetic characterization

Bourwina, Mansoura; Msalmi, Rawia; Walha, Siwar; Turnbull, Mark M.; Roisnel, Thierry; Costantino, Ferdinando; Mosconi, Edoardo; Naı̈li, Houcine

doi:10.1039/d0tc05948j

Cited by 24 publications

(21 citation statements)

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“…In addition to their pertinent magnetic, 1-8 catalytic [9][10][11][12] and biological 9,[13][14][15] properties, organic-inorganic molecular hybrid materials (OIMHMs) exhibit excellent performance in solid-state emitter sources 16,17 as well as in photovoltaic solar cells. [18][19][20][21] Due to their wide band gap energy, low dimensional hybrid compounds are effectively used for optoelectronic devices such as light emitting and diode photo-detectors. 16,[22][23][24] In fact, the low dimensionality of the inorganic sub-lattice creates a multi quantum-well electronic structure which leads to the increase of the band gap energy.…”

Section: Introductionmentioning

confidence: 99%

Organically tuned white-light emission from two zero-dimensional Cd-based hybrids

et al. 2022

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Section: Introductionmentioning

confidence: 99%

Organically tuned white-light emission from two zero-dimensional Cd-based hybrids

et al. 2022

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“…In the low-wavelength range, MHyCdCl 3 exhibits an intense absorption band with a maximum at 212 nm and a weaker band at 275 nm, similar to FACd(H 2 PO 2 ) 3 (FA + = formamidinium) [ 39 ] and [TPrA]Cd(dca) 3 (TPrA + = tetrapropylammonium, dca − = dicyanamide) [ 40 ]. MHyCuCl 3 has a much wider low-wavenumber band, with maxima at 249, 330, 379, and 410 nm previously assigned to the ligand-to-metal charge transfer from Cl − ligand to Cu 2+ centers for (C 5 H 14 N 2 )[CuCl 4 ] (C 5 H 14 N 2 2+ = diprotonated 1,4-diazacycloheptane), (N(CH 3 ) 4 )CdX 3 :Cu 2+ (N(CH 3 ) 4 + =tetramethylammonium, X = Cl − , Br − ), and MA 2 CuCl x Br 4-x (MA + = methylammonium) [ 41 , 42 , 43 ]. The diffuse reflectance spectrum of MHyCuCl 3 also has a very broad absorption band with a maximum of about 850 nm, which is caused by Cu 2+ d - d transitions in the D 4h coordination centers [ 41 , 43 , 44 ].…”

Section: Resultsmentioning

confidence: 99%

Hybrid Chlorides with Methylhydrazinium Cation: [CH3NH2NH2]CdCl3 and Jahn-Teller Distorted [CH3NH2NH2]CuCl3

et al. 2023

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The synthesis, structural, phonon, optical, and magnetic properties of two hybrid organic-inorganic chlorides with monoprotonated methylhydrazinium cations (CH3NH2NH2+, MHy+), [CH3NH2NH2]CdCl3 (MHyCdCl3), and [CH3NH2NH2]CuCl3 (MHyCuCl3), are reported. In contrast to previously reported MHyMIICl3 (MII = Mn2+, Ni2+, and Co2+) analogues, neither compound undergoes phase transitions. The MHyCuCl3 has a crystal structure familiar to previous crystals composed of edge-shared 1D chains of the [CuCl5N] octahedra. MHyCuCl3 crystallizes in monoclinic P21/c symmetry with MHy+ cations directly linked to the Cu2+ ions. The MHyCdCl3 analogue crystallizes in lower triclinic symmetry with zig-zag chains of the edge-shared [CdCl6] octahedra. The absence of phase transitions is investigated and discussed. It is connected with slightly stronger hydrogen bonding between cations and the copper–chloride chains in MHyCuCl3 due to the strong Jahn–Teller effect causing the octahedra to elongate, resulting in a better fit of cations in the accessible space between chains. The absence of structural transformation in MHyCdCl3 is due to intermolecular hydrogen bonding between two neighboring MHy+ cations, which has never been reported for MHy+-based hybrid halides. Optical investigations revealed that the bandgaps in Cu2+ and Cd2+ analogues are 2.62 and 5.57 eV, respectively. Magnetic tests indicated that MHyCuCl3 has smeared antiferromagnetic ordering at 4.8 K.

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“…[92] The light-emitting properties can be flexibly tuned by the management of the energy-level alignment between the organic and organic components. When the exciton level of the inorganic layer is located above the singlet level of organic spacers, the luminescence of 2D perovskites is mainly dominated by the OC [108,109] PV [110,111] MG [112] FE [113,114] CO [115] PZE [116] 1D -LM [17,117] FE [118,119] FM [120] 0D [121,122] PV [123] FE [124] a) E g (bandgap), e (electronic effective mass), m h (hole effective mass), E b (exciton binding energy), optoelectronic (OC), photovoltaic (PV), magnetic (MG), ferroelectric (FE), chiral optics (CO), piezoelectricity (PZE), luminescence (LM), ferromagnetism (FM). The E b is assessed by using a simple Wannier exciton model.…”

Section: Excitonic Characteristic and Luminescence Mechanism Of Ldpsmentioning

confidence: 99%

Toward Eco‐Friendly Lead‐Free Low‐Dimensional Perovskites

Gao

Luo

et al. 2022

Small Structures

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Lead halide perovskites are regarded as potential successor of traditional perovskites, due to their variable structures and excellent optoelectronic properties. However, its large‐scale commercialization is impeded by the inherent instability and toxicity. In this regard, lead‐free low‐dimensional perovskites (LFLDPs) have emerged as promising alternatives to the traditional 3D components, due to their structural tunability and environmental friendliness and stability. The structure–property characteristics of LFLDPs endow them with a unique combination of optoelectronic efficiency and versatile functionality, which has led to their impressive employment in the optoelectronic devices. In this perspective, a brief description of recent progress on the various LFLDPs, and especially from theoretical perspective, is presented. First, the general types of LFLDPs are introduced and the metal elements that have been used to date in the exploitation of LFLDPs are collected. This is followed by a discussion of fundamental understanding of the structure–property relationship for different dimensional perovskites in the view of connectivity and element composition. Finally, luminescence mechanism of relevant LFLDPs and the key frontiers and challenges for further developing LFLDP materials is discussed.

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A new lead-free 1D hybrid copper perovskite and its structural, thermal, vibrational, optical and magnetic characterization

Abstract: A hybrid material based on a 1D copper chloride perovskite network with hexahydro-1,4-diazepine, (C5H14N2)[CuCl4], was grown at room temperature by slow evaporation. This compound crystallizes in the monoclinic space group...

Cited by 24 publications

References 43 publications

Organically tuned white-light emission from two zero-dimensional Cd-based hybrids

Organically tuned white-light emission from two zero-dimensional Cd-based hybrids

Hybrid Chlorides with Methylhydrazinium Cation: [CH3NH2NH2]CdCl3 and Jahn-Teller Distorted [CH3NH2NH2]CuCl3

Toward Eco‐Friendly Lead‐Free Low‐Dimensional Perovskites

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