A Photoluminescent Lead Bromide Hybrid Perovskite Molecular Ferroelastic Semiconductor with Sequential High-Tc Phase Transitions
| Autor: | Zhong-Xia Wang, Hua Zhang, Zhe-Kun Xu, Fang Wang, Xue-Qin Huang, Tian Gan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Phase transition
Photoluminescence Materials science Hydrogen bond business.industry Intermolecular force Halide 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Semiconductor Chemical physics Molecule General Materials Science Physical and Theoretical Chemistry 0210 nano-technology business Perovskite (structure) |
| Zdroj: | The Journal of Physical Chemistry Letters. 12:5221-5227 |
| ISSN: | 1948-7185 |
| Popis: | Organic-inorganic hybrid lead halide perovskites have attracted great interest for their use in promising optoelectronic applications. However, reports of photoluminescent perovskite molecular ferroelastic semiconductors with sequential high-Tc phase transitions have been scarce. In this work, a one-dimensional lead bromide hybrid perovskite [N,N-dimethylethanolammonium]PbBr3 has been synthesized, undergoing high-Tc sequential phase transitions at around 351 and 444 K, higher than those of most previously discovered hybrid perovskite phase transition materials. The specific intermolecular hydrogen bond between cationic molecules provides the greatest contribution to its high Tc by increasing the barrier of molecular motion under the temperature stimuli. The prominent ferroelastic domain evolution is visually observed under orthogonally polarized light. In addition, [N,N-dimethylethanolammonium]PbBr3 exhibits semiconducting and orange light emission characteristics. This finding opens up an avenue for designing high-performance ferroelastic materials and provides great motivation for discovering new multifunctional materials for the next generation of smart devices. |
| Databáze: | OpenAIRE |
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