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图2 金刚石型结构模型。 (A)金刚石型晶胞(颜色不同是为了更清楚看清空间结构:浅蓝和深蓝代表同一类碳原子); (B)荧光纳米金刚石晶胞示意图,存在(NV)空缺中心,是发荧光主要原因。 (注:在图2A中,若浅蓝色代表S2-,深蓝色代表Zn2+,则属于立方ZnS型)
Fig. 2 Diamond structure model. (A) Diamond-type cells (different colours to better see the spatial structure: light and dark blue represent the same carbon atom); (B) schematic diagram of fluorescent nanodiamond cells with (NV) vacancy centers, which is the main cause of fluorescence (Note: In Fig.2A, light blue represents S2- and dark blue represents Zn2+, which is cubic ZnS type)