2D Inorganic Bimolecular Crystals with Strong In-Plane Anisotropy for Second-Order Nonlinear Optics
| Autor: | Tianyou Zhai, Ke Pei, Jianwei Su, Zongdong Sun, Fakun Wang, Guiheng Liu, Xin Feng, Huiqiao Li, Wei Han, Peng Luo, Nian Zuo |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Phonon Mechanical Engineering Intermolecular force Nonlinear optics 02 engineering and technology Dichroism 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Crystal Mechanics of Materials Chemical physics Intramolecular force General Materials Science Sublimation (phase transition) 0210 nano-technology Anisotropy |
| Zdroj: | Advanced materials (Deerfield Beach, Fla.). 32(32) |
| ISSN: | 1521-4095 |
| Popis: | 2D inorganic bimolecular crystals, consisting of two different inorganic molecules, are expected to possess novel physical and chemical properties due to the synergistic effect of the individual components. However, 2D inorganic bimolecular crystals remain unexploited because of the difficulties in preparation arising from non-typical layered structures and intricate intermolecular interactions. Here, the synthesis of 2D inorganic bimolecular crystal SbI3 ·3S8 nanobelts via a facile vertical microspacing sublimation strategy is reported. The as-synthesized SbI3 ·3S8 nanobelts exhibit strong in-plane anisotropy of phonon vibrations and intramolecular vibrations as well as show anisotropic light absorption with a high dichroism ratio of 3.9. Furthermore, it is revealed that the second harmonic generation intensity of SbI3 ·3S8 nanobelts is highly dependent on the excitation wavelength and crystallographic orientation. This work can inspire the growth of more 2D inorganic bimolecular crystals and excite potential applications for bimolecular optoelectronic devices. |
| Databáze: | OpenAIRE |
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