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Li QL, Zhao M, Hao RJ, Wei J, Wang XX, Yang C, Zhao M, Tan YH, Tang YZ. High-Temperature Phase Transition with Switchable Dielectric Behavior and Significant Photoluminescence Changes in a Zero-Dimensional Hybrid SbBr 6 Perovskite. Inorg Chem 2024; 63:3411-3417. [PMID: 38311915 DOI: 10.1021/acs.inorgchem.3c04050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2024]
Abstract
In the past decade, metal halide materials have been favored by many researchers because of their excellent physical and chemical properties under thermal, electrical, and light stimuli, such as ferroelectricity, dielectric, nonlinearity, fluorescence, and semiconductors, greatly promoting their application in optoelectronic devices. In this study, we successfully constructed an unleaded organic-inorganic hybrid perovskite crystal: [Cl-C6H4-(CH2)2NH3]3SbBr6 (1), which underwent a high-temperature reversible phase transition near Tp = 368 K. The phase transition behavior of 1 was characterized by differential scanning calorimetry, accompanied by a thermal hysteresis of 6 K. In addition, variable-temperature Raman spectroscopy analysis and PXRD further verified the sensitivity of 1 to temperature and the phase transition from low symmetry to high symmetry. Temperature-dependent dielectric testing shows that 1 can be a sensitive switching dielectric constant switching material. Remarkably, 1 exhibits strong photoluminescence emission with a wavelength of 478 nm and a narrow band gap of 2.7 eV in semiconductors. As the temperature increases and decreases, fluorescence undergoes significant changes, especially near Tc, which further confirms the reversible phase transition of 1. All of these findings provide new avenues for designing and assembling new phase change materials with high Tp and photoluminescence properties.
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Affiliation(s)
- Qiao-Lin Li
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Meng Zhao
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Rong-Jie Hao
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Jing Wei
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Xi-Xi Wang
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Chun Yang
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Man Zhao
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Yu-Hui Tan
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
| | - Yun-Zhi Tang
- School of Chemistry and Chemical Engineering, Jiangxi University of Technology, Ganzhou, Jiangxi Province 341000, China
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An organic-inorganic hybrid thermochromic ferroelastic with multi-channel switches. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2022.108127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Zhao R, Zhu T, Wang S, Jarrett-Wilkins C, Najjarian AM, Lough AJ, Hoogland S, Sargent EH, Seferos DS. Engineering hydrogen bonding to align molecular dipoles in organic solids for efficient second harmonic generation. Chem Sci 2022; 13:12144-12148. [PMID: 36349093 PMCID: PMC9601317 DOI: 10.1039/d2sc03994j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 09/27/2022] [Indexed: 08/12/2023] Open
Abstract
Considering nearly infinite design possibilities, organic second harmonic generation (SHG) molecules are believed to have long-term promise. However, because of the tendency to form dipole-antiparallel crystals that lead to zero macroscopic polarization, it is difficult to design a nonlinear optical (NLO) material based on organic molecules. In this manuscript, we report a new molecule motif that can form asymmetric organic solids by controlling the degree of hydrogen bonding through protonation. A conjugated polar organic molecule was prepared with a triple bond connecting an electron-withdrawing pyridine ring and an electron-donating thiophene ring. By controlling the degree of hydrogen bonding through protonation, two different crystal packing motifs are achieved. One crystallizes into the common dipole-antiparallel nonpolar P1̄ space group. The second crystallizes into the uncommon dipole-parallel polar P1 space group, in which the molecular dipoles are aligned along a single axis and thus exhibit a high macroscopic polarization in its solid-state form. Due to the P1 polar packing, the sample can generate second harmonic light efficiently, about three times the intensity of the benchmark potassium dihydrogen phosphate. Our findings show that crystal engineering by hydrogen bonding in a single molecular backbone can be used for controlling the macroscopic NLO properties.
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Affiliation(s)
- Ruyan Zhao
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Tong Zhu
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Sasa Wang
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Charlie Jarrett-Wilkins
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Amin Morteza Najjarian
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Alan J Lough
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Sjoerd Hoogland
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Edward H Sargent
- Department of Electronic and Computer Engineering, University of Toronto 10 King's College Road Toronto Ontario M5S 3G4 Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto 200 College Street Toronto Ontario M5S 3E5 Canada
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