Engineering high refractive index sensitivity through the internal and external composition of bimetallic nanocrystals

被引:12
作者
Smith, Alison F. [1 ,2 ]
Harvey, Samantha M. [1 ]
Skrabalak, Sara E. [1 ]
Weiner, Rebecca G. [1 ]
机构
[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA
[2] NAVSEA Crane, Crane, IN 47522 USA
基金
美国国家科学基金会;
关键词
SURFACE-PLASMON RESONANCE; CHEMICAL-STABILITY; OPTICAL-CONSTANTS; CO-REDUCTION; NANOSTRUCTURES; NANOPARTICLES; SHAPE; SIZE; GOLD; AG;
D O I
10.1039/c6nr04085c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
High refractive index sensitivity (RIS) of branched Au-Pd nanocrystals (NCs) is engineered through lowering the dielectric dispersion at the NC resonant wavelength with internal or external atomic % Pd. To our knowledge, these NCs display the highest ensemble RIS measurement for colloids with LSPR maximum band positions <= 900 nm, and these results are corroborated with FDTD computations.
引用
收藏
页码:16841 / 16845
页数:5
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