本文将不同含量的银纳米粒子(Ag NPs)掺杂到不同粒径的聚(苯乙烯-甲基丙烯酸甲酯-丙烯酸)胶球乳液(P(St-MMA-AA)乳液)中,利用蒸发诱导自组装方法制备带有结构色的Ag NPs/P(St-MMA-AA)光子晶体材料。实验结果表明,银纳米粒子及其表面活性剂的含量与光子晶体结构色的亮度和反射光谱峰的强度密切相关。银纳米颗粒作为等离子体材料,在受到电磁辐射的激发下,可支持自由电子在金属中集体振荡产生共振散射,这将有助于P(St-MMA-AA)光子晶体材料应用范围的拓宽。
Abstract
In this paper,Ag nanoparticles (Ag NPs) with different contents were doped into poly (styrene-methyl methacrylate-acrylic acid) rubber ball emulsion (P(St-MMA-AA) emulsion) with different sizes, and Ag NPs/P(St-MMA-AA) crystal materials with structural colors were prepared by evaporation-induced self-assembly method. The experimental results show that the content of Ag nanoparticles and their surfactants is closely related to the brightness of the structure color and the intensity of the reflection spectrum peak of the photonic crystal. As a plasma material, Ag nanoparticles can support the collective oscillation of free electrons in metal to produce resonance scattering under electromagnetic radiation, which will be helpful to broaden the application range of P(St-MMA-AA) photonic crystal materials.
关键词
银纳米颗粒 /
自组装 /
光子晶体 /
结构色 /
反射光谱
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Key words
Ag nanoparticles /
self-assembly /
photonic crystal /
structural colors /
spectral reflectance
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脚注
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基金
河北省自然科学基金(B2020205018),河北省高校科技研究项目(QN2019139),河北师范大学校基金(L2019B18)
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