Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1322, P. 140535 - 140535
Published: Nov. 1, 2024
Language: Английский
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)
Published: May 15, 2024
Abstract Lead halide molecular ferroelectrics represent an important class of luminescent ferroelectrics, distinguished by their high chemical and structural tunability, excellent processability distinctive characteristics. However, inherent instability, prone to decomposition upon exposure moisture light, hinders broader ferroelectric applications. Herein, for the first time, we present a series isoreticular metal–organic framework (MOF)‐type lead demonstrating exceptional robustness under ambient conditions at least 15 months even when subjected aqueous boiling conditions. Unlike conventional metal‐oxo secondary building units (SBUs) in MOFs adopting highly centrosymmetric structure with limited distortion, our halide‐based occupy structurally deformable [Pb 2 X] + (X=Cl − /Br /I ) SBUs that facilitate c ‐axis‐biased displacement Pb 2+ centers substantially contribute thermoinducible transformation. Importantly, this MOF‐type undergo ferroelectric‐to‐paraelectric phase transitions remarkably Curie temperature up 505 K, superior most ferroelectrics. Moreover, covalent bonding between phosphorescent organic component light‐harvesting inorganic achieves efficient spin‐orbit coupling intersystem crossing, resulting long‐lived afterglow emission. The compelling combination stability, ferroelectricity emission exhibited opens many potential opportunities energy‐conversion
Language: Английский
Citations
10
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(38), P. 26534 - 26542
Published: Sept. 10, 2024
Dynamic twisting crystals, combining the features of dynamic crystals and promise advanced applications in targeted drug delivery, biosensors, microrobots, spiral optoelectronics. However, determination with specific directions remains a formidable challenge practical applications. Herein, based on organic-inorganic hybrid metal halide (OIHMH) single we have realized chirality-induced macroscopic driven by thermo-induced topochemical dehydration reaction. These exhibit molecular-chirality-induced upon heating, along reversals their linear chiroptical circular dichroism nonlinear second harmonic generation dichroism. Such an induced has been attributed to alteration helical arrangement chiral cation post-topochemical dehydration. The feasibility tuning OIHMH switching properties might open up new avenues for developing microactuating optoelectronic
Language: Английский
Citations
5
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(29)
Published: May 15, 2024
Abstract Lead halide molecular ferroelectrics represent an important class of luminescent ferroelectrics, distinguished by their high chemical and structural tunability, excellent processability distinctive characteristics. However, inherent instability, prone to decomposition upon exposure moisture light, hinders broader ferroelectric applications. Herein, for the first time, we present a series isoreticular metal–organic framework (MOF)‐type lead demonstrating exceptional robustness under ambient conditions at least 15 months even when subjected aqueous boiling conditions. Unlike conventional metal‐oxo secondary building units (SBUs) in MOFs adopting highly centrosymmetric structure with limited distortion, our halide‐based occupy structurally deformable [Pb 2 X] + (X=Cl − /Br /I ) SBUs that facilitate c ‐axis‐biased displacement Pb 2+ centers substantially contribute thermoinducible transformation. Importantly, this MOF‐type undergo ferroelectric‐to‐paraelectric phase transitions remarkably Curie temperature up 505 K, superior most ferroelectrics. Moreover, covalent bonding between phosphorescent organic component light‐harvesting inorganic achieves efficient spin‐orbit coupling intersystem crossing, resulting long‐lived afterglow emission. The compelling combination stability, ferroelectricity emission exhibited opens many potential opportunities energy‐conversion
Language: Английский
Citations
4
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(26), P. 12350 - 12359
Published: June 18, 2024
Hybrid metal halide materials with charming phase transition behaviors have attracted considerable attention. In former works, much attention has been focused on the triggered by order-disorder or displacement motions of organic component. However, manipulating variation inorganic component to achieve rarely reported. Herein, two novel organic-inorganic hybrid materials, [THPM]
Language: Английский
Citations
2
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: June 20, 2024
Abstract Integrating multiple switching behaviors in a single material is conducive to the development of smart devices, but still faces challenges, especially finding new types multiresponsive materials. Hybrid metal halides have been becoming promising candidates with potential exhibit changes various physical and chemical properties upon structural phase transitions. Herein, pair enantiomers ( R / S ‐3‐OHPD)PbI 3 (1 /1 ; 3‐HOPD = 3‐hydroxypiperidine cation) reported show multichannel around room temperature triggered by combined order‐disorder displacive type transition that arouses large lattice reorganization shape change crystals. Owing inherent chiral, noncentrosymmetric, semiconducting characteristics compounds, five other are realized besides macroscopic deformation, is, enthalpy, dielectric permittivity, photoluminescence, circularly polarized light excited photoelectric response. This study provides an exciting example crystals for integrated multifunctional
Language: Английский
Citations
1
Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(43), P. 20911 - 20920
Published: Oct. 17, 2024
Molecular ferroelectrics have increasingly garnered significant attention in both fundamental scientific research and technological applications due to their ease of processing, lightweight nature, mechanical flexibility. Among these, metal halide perovskite (MHP FEs), a subset molecule-based ferroelectrics, exhibit diverse functionalities owing distinctive structures, thus emerging as focal point molecular research. However, thin films, the predominant application form for MHP FEs, primarily rely on spin-coating, which presents considerable limitations. The development melt-processable FEs has been sparse, largely challenge integrating ferroelectricity with meltability. In this context, we propose rational strategy successful synthesis FE, (MBPA)
Language: Английский
Citations
1
Chinese Journal of Structural Chemistry, Journal Year: 2024, Volume and Issue: 43(11), P. 100426 - 100426
Published: Aug. 29, 2024
Language: Английский
Citations
0
Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1322, P. 140535 - 140535
Published: Nov. 1, 2024
Language: Английский
Citations
0