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研究了铬过渡层对纳米球刻蚀法制备二维银纳米点阵结构的影响。首先利用自组装的方法在玻璃基底上制备出单层排列的聚苯乙烯纳米球阵列,然后使用物理气相沉积的方法在二维聚苯乙烯纳米球阵列上沉积一层铬层作过渡层和银层,最后将玻璃基底在乙醇溶液中超声移除聚苯乙烯纳米球,得到二维的银纳米点阵。实验发现,随着铬过渡层厚度的增加,制得的二维银纳米点阵阵列趋于完整,单个的银纳米颗粒由椭圆状转变为三角形形状。实验中测量了所得到的二维银纳米结构的吸收光谱。
The effect of chromium intercalation layer on the fabrication of two-dimensional silver nano-lattice structure by nanosphere etching was studied. First, a self-assembly method was used to fabricate a single-layer array of polystyrene nanosphere arrays on a glass substrate. Then, a two-dimensional chrome layer was deposited on the two-dimensional polystyrene nanosphere array as a transition layer and silver by physical vapor deposition Layer, and finally, the glass substrate is ultrasonically removed from the polystyrene nanosphere in an ethanol solution to obtain a two-dimensional silver nano lattice. The experimental results show that with the increase of the thickness of the chromium transition layer, the two-dimensional silver nano-dot array obtained tends to be complete, and the single silver nano-particles transform from the elliptical shape to the triangular shape. In the experiment, the absorption spectra of the obtained two-dimensional silver nanostructures were measured.