锡
纳米结构
材料科学
等离子体子
纳米技术
拉曼散射
氮化钛
无定形固体
热稳定性
拉曼光谱
化学工程
氮化物
光电子学
光学
化学
冶金
结晶学
物理
图层(电子)
工程类
作者
Le Wang,Shengyan Wang,Lin Mei,Jie Sun,Feng Shi,Nan Zhang,Ruibin Jiang
标识
DOI:10.1002/ppsc.202000321
摘要
Abstract As one kind of alternative to conventional metals, titanium nitride offers many advantages in the rapidly growing fields of plasmonics and metamaterials. However, the development of TiN x ‐based plasmonics is severally limited by the difficulty in the preparation. Herein, a facial approach is developed for the preparation of Au@TiN x core‐shell nanostructures. The synthesis starts with colloidal Au nanospheres, followed by the growth of amorphous TiO 2 shells. The obtained Au@a‐TiO 2 nanostructures convert into Au@TiN x through nitridation at high temperature in ammonia atmosphere. The prepared Au@TiN x nanostructures have strong plasmonic scatting in the visible region and strong field enhancement at the surface of nanostructures. Au@TiN x nanostructures also exhibit a relatively large enhancement for Raman scattering. The developed preparation method can produce TiN x nanostructures with relatively uniform size and thus will be very helpful to the development of TiN x ‐base plasmonics.
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