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首页> 外文期刊>Advanced Functional Materials >Formation of silver nanoprisms with surface plasmons at communication wavelengths
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Formation of silver nanoprisms with surface plasmons at communication wavelengths

机译：在通信波长下具有表面等离子体激元的银纳米棱镜的形成

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Silver nanoprisms with strong absorption in the near-IR have been synthesized using a modification of the photoinduced method by illuminating preformed silver seeds under different illumination conditions. Low-intensity light-emitting diodes and white light combined with different color filters are used as light sources. The lateral dimensions of the nanoprisms are found to be correlated in a quasilinear fashion with the emission wavelength and the position of the main in-plane dipole plasmon band. The structural characterization of the Ag nanoparticles, carried out using scanning electron microscopy., transmission electron microscopy (TEM), high-resolution TEM. and electron diffraction, reveal that the particles are flat and have a single-crystal face-centered-cubic structure. Time-resolved studies suggest that the nanoprisms are formed by steady consumption of the original Ag seeds with little variation of the aspect ratio after a short induction time.
机译：使用光诱导方法的一种改进方法，通过在不同的照明条件下照射预制的银种子，合成了在近红外区具有强吸收能力的银纳米棱镜。低强度发光二极管和结合了不同滤色器的白光用作光源。发现纳米棱镜的横向尺寸以准线性方式与发射波长和主平面内偶极等离子体激元带的位置相关。 Ag纳米颗粒的结构表征，使用扫描电子显微镜，透射电子显微镜（TEM），高分辨率TEM进行。和电子衍射表明，这些颗粒是扁平的，并具有单晶的面心立方结构。时间分辨的研究表明，纳米棱镜是通过稳定消耗原始的Ag种子而形成的，并且在短的诱导时间后长宽比几乎没有变化。

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