Designing a 2D van der Waals oxide with lone-pair electrons as chemical scissor
Author Information
Author(s): Du Zhipeng, Chen Xu, Liu Wei, Wang Han, Xu Qianting, Shang Xiaoying, Song Yipeng, Chen Xueyuan, Luo Junhua, Zhao Sangen
Primary Institution: State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
Hypothesis
Can lone-pair electrons be used as chemical scissors to design and synthesize new 2D van der Waals materials?
Conclusion
The study successfully synthesized a stable 2D van der Waals oxide, InSbMoO6, which exhibits strong in-plane anisotropic nonlinear optical responses.
Supporting Evidence
- The synthesized InSbMoO6 exhibits a strong second-harmonic generation response with an effective second-order nonlinear optical susceptibility of 32.4 pm·V−1.
- The SHG response is in-plane anisotropic and directly proportional to the layer thickness.
- The flakes demonstrate excellent thermal and atmospheric stability.
- After three months of exposure to air, no visible changes were observed in the ISM flakes.
Takeaway
Scientists created a new type of material that can help make better light-based technology by using special electrons that act like scissors to shape it.
Methodology
The material was synthesized using a solid-state reaction and mechanical exfoliation to obtain monolayer samples.
Digital Object Identifier (DOI)
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