2D graphdiyne: an excellent ultraviolet nonlinear absorption material
2D graphdiyne: an excellent ultraviolet nonlinear absorption material
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二维石墨炔：优异的紫外非线性吸收材料
DOI：
10.1039/c9nr10704e
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发表时间：
2020
期刊：
影响因子：
6.7
通讯作者：
Xinguang Xu
中科院分区：
文献类型：
--
作者：
Fang Zhang;Guowei Liu;Junjie Yuan;Zhengping Wang;Tianhong Tang;Shenggui Fu;Huanian Zhang;Zhongsheng Man;Fei Xing;Xinguang Xu
石墨烯具有sp2杂化的碳原子结构，被认为是一种非线性吸收（NLA）材料，这促使科学家们探索新的碳同素异形体。与石墨烯不同，石墨二炔（GDY）由sp-和sp2-杂化的碳原子组成。碳-碳三键的sp杂化结构将带来不同于其它碳同素异形体的新颖的非线性光学性质。在这项研究中，我们研究了宽带NLA性能（紫外-红外波段）的GDY纳米片，剥离使用液相剥离（LPE）方法。短的紫外截止波长（约200 nm-220 nm）预示着GDY作为紫外光学材料的潜在应用。该纳米片在紫外波段的优异性能表明，GDY纳米片是名副其实的紫外NLA材料，在紫外光学领域具有潜在的应用前景。本研究拓宽了纳米材料的应用范围。
With an sp2-hybridized carbon atom structure, graphene is recognized as a nonlinear absorption (NLA) material, which has motivated scientists to explore new allotropes of carbon. Different from graphene, graphdiyne (GDY) consists of sp- and sp2-hybridized carbon atoms. An sp-hybridized carbon–carbon triple bond structure will bring in novel nonlinear optical properties, which are different from other allotropes of carbon. In this study, we investigated the broadband NLA properties (ultraviolet–infrared waveband) of GDY nanosheets, exfoliated using a liquid-phase exfoliation (LPE) method. The short ultraviolet cut-off wavelength (around 200 nm–220 nm) forebodes the potential application of GDY as an ultraviolet optical material. The outstanding NLA resulting in an ultraviolet waveband attests that the GDY nanosheets are veritable ultraviolet NLA materials, which have potential applications in ultraviolet optics. Our study broadens the application scopes of nanomaterials.