Quadrupole-mode plasmonic nanoshell array for NIR-responsible optical sensors

我们成功制备了与600- 1200 nm的光及其表面共振的等离子体PS@Au纳米壳。此外，控制相邻纳米壳颗粒之间的距离提供了集体等离子体共振模式。因此，它已经能够达到10 fM级别的灵敏度。该值比常规LSPR传感器的灵敏度高100万倍或更多倍。在这项工作中，我们试图探索替代材料，以取代金用于壳，导致在PS@Cu纳米壳阵列中的pM级检测通过涂覆铜薄膜产生。

We have succeeded in the preparation of plasmonic PS@Au nanoshells that resonates with the light of 600-1200nm and its surface. Further, controlling the nanoshell particle distance between adjacent provided the collective plasmon resonance mode . As a result, it has been able to 10fM level sensitivity. This value was of 1 million or more times higher sensitivity than that of conventional LSPR sensors. In this work, we tried to explore alternative materials to replace the gold is used for the shell, resulting pM level detection in the PS@Cu nanoshells array produced by coating a copper thin film.