Two-dimensional (2D) nonlinear optical monolayers are brilliant candidates for future nanoscale laser devices, typically within the deep ultraviolet (DUV) region. In our work, we propose a material template-optimized design strategy to obtain two 2D materials BOF and B₃O₃F₃. Both of them show extremely large band gaps (10.76 and 9.25 eV) and a proper second harmonic generation (SHG) response. The BOF and B₃O₃F₃ layers also show SHG anisotropy.

中文翻译：

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通过模板优化设计策略获得的两个深紫外非线性光学单层

二维 (2D) 非线性光学单层是未来纳米级激光器件的绝佳候选者，通常在深紫外 (DUV) 区域内。在我们的工作中，我们提出了一种材料模板优化设计策略，以获得两种二维材料 BOF 和 B ₃ O ₃ F ₃。它们都显示出极大的带隙（10.76 和 9.25 eV）和适当的二次谐波生成 (SHG) 响应。BOF和B ₃ O ₃ F ₃层也显示SHG各向异性。