A novel Cd-based multifunctional high temperature phase transition material: [(CH2CH3)3NCH2Cl]2CdBr4

Ying, Tan; Tang, Yun‐Zhi; Tan, Yu‐Hui; Wang, Jiaying; Zhao, Yi-Ran; Fan, Xinjian; Wang, Fang-Xin; Wan, Ming‐Yang

doi:10.1016/j.ica.2022.121254

Cited by 4 publications

(3 citation statements)

References 38 publications

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“…When the static-crystal structure changes dynamically, the dielectric constant changes suddenly, so the phase transition is always accompanied by an obvious dielectric anomaly. 24,31,32 Then we further carried out the dielectric test on compound 1 in the range of 230 K–275 K. As shown in Fig. 2, during cooling and heating, two plateaus of the temperature-dependent ε ′ are observed.…”

Section: Resultsmentioning

confidence: 99%

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

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Section: Resultsmentioning

confidence: 99%

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

et al. 2023

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“…While 2D organic–inorganic hybrid perovskites have shown significant advancements, polar structures are still relatively scarce, limiting their switchable properties in areas such as piezoelectric and second harmonic generation (SHG) effects. ,− To address this issue, Xiong et al proposed the H/F substitution strategy, which has been demonstrated as an effective molecular design approach for precise control of the physical and chemical properties of 2D organic–inorganic hybrid perovskites . Specifically, due to the high electronegativity of fluorine, the H/F substitution on organic cations can induce enhanced dipole moments within the crystal structure, thereby facilitating the formation of polar structures.…”

Section: Introductionmentioning

confidence: 99%

Excellent Switchable Properties, Broad-Band Emission, Ferroelectricity, and High T_c in a Two-Dimensional Hybrid Perovskite: (4,4-DCA)₂PbBr₄ Exploited by H/F Substitution

et al. 2023

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Switchable materials have gained significant attention due to their potential applications in data storage, sensors, and switching devices. Two-dimensional (2D) hybrid perovskites have demonstrated promising prospects for designing switchable materials, where the dynamic motion of the organic components coupled with the distortion of the inorganic framework provides the driving force for triggering multifunctional switchable properties. Herein, through the H/F substitution strategy, we report a polar 2D hybrid lead-based perovskite, (4,4-DCA)2PbBr4 (4,4-DCA = 4,4-difluorocyclohexylammonium) (1), which exhibits dual-stable behavior in a dielectric and second harmonic generation (SHG) response during the reversible phase transition process near the high Curie temperature T c ∼ 409 K. The phase transition temperature is significantly increased by 41 K compared to the corresponding non-fluorinated (CHA)2PbBr4 (CHA = cyclohexylammonium). Remarkably, the material shows rare broad-band yellow emission under UV excitation, attributed to the induction of self-trapped exciton emission by the distortion of the [PbBr6] 4– octahedra, as confirmed by the first-principles analysis. 1 also exhibited ferroelectricity with a saturation polarization value and a small coercive field. This study provides a new insight into the modification of multifunctional switchable materials through the H/F substitution strategy.

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“…22 Some of them exhibit tunable dielectric behavior due to reversible structural phase transitions induced by dynamic cations. 23 The dielectric switching characteristics of such materials are very important, as they can promote the exploration and design of multifunctional materials with multiple switching response characteristics. [24][25][26] In particular, research on lead halide hybrid perovskite with CH 3 NH 3 PbI 3 as the marker material is very active.…”

Section: Introductionmentioning

confidence: 99%

Organic–inorganic hybrid multifunctional materials with high-T_c reversible phase transition and wide bandgap properties

Tan,

Ying,

Fan

et al. 2023

Mater. Adv.

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A novel Cd-based multifunctional high temperature phase transition material: [(CH2CH3)3NCH2Cl]2CdBr4

Cited by 4 publications

References 38 publications

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

Excellent Switchable Properties, Broad-Band Emission, Ferroelectricity, and High T_c in a Two-Dimensional Hybrid Perovskite: (4,4-DCA)₂PbBr₄ Exploited by H/F Substitution

Organic–inorganic hybrid multifunctional materials with high-T_c reversible phase transition and wide bandgap properties

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A novel Cd-based multifunctional high temperature phase transition material: [(CH2CH3)3NCH2Cl]2CdBr4

Cited by 4 publications

References 38 publications

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

2-Chloroethylamine·trifluoromethanesulfonate combined with 18-crown-6: a ferroelectric with excellent dielectric switching properties

Excellent Switchable Properties, Broad-Band Emission, Ferroelectricity, and High Tc in a Two-Dimensional Hybrid Perovskite: (4,4-DCA)2PbBr4 Exploited by H/F Substitution

Organic–inorganic hybrid multifunctional materials with high-Tc reversible phase transition and wide bandgap properties

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Product

Resources

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Excellent Switchable Properties, Broad-Band Emission, Ferroelectricity, and High T_c in a Two-Dimensional Hybrid Perovskite: (4,4-DCA)₂PbBr₄ Exploited by H/F Substitution

Organic–inorganic hybrid multifunctional materials with high-T_c reversible phase transition and wide bandgap properties