论文标题
ZnO纳米线阵列用氮化钛纳米颗粒装饰，作为表面增强的拉曼散射底物
ZnO Nanowire Arrays Decorated with Titanium Nitride Nanoparticles as Surface Enhanced Raman Scattering Substrates
论文作者
论文摘要
在这项工作中，证明了用氮化钛（TIN）纳米粒子装饰的ZnO纳米阵列作为表面增强的拉曼散射（SERS）底物。 ZnO纳米线是通过水热合成生长的，而〜100 nm的锡纳米颗粒是通过将商业粉末磨几小时而获得的。然后，它们使用丙酮作为介质在Zno纳米线阵列上进行了装饰。扫描电子显微镜证实了ZnO纳米线上存在锡纳米颗粒。锡纳米颗粒在430、520和600 nm处表现出局部的表面等离子体共振。使用尼罗河蓝色和亚甲基蓝的SERS实验，因为分析物分子在拉曼信号中显示出显着增强。结果表明，由于分析物分子和锡纳米颗粒之间的电荷转移，SERS效应的起源本质上是化学的。因此，当前的工作代表了一种简单，成本效益且便捷的方法，用于制造基于锡的表面增强的拉曼散射底物。
In this work, ZnO nanowire arrays decorated with titanium nitride (TiN) nanoparticles as surface enhanced Raman scattering (SERS) substrates is demonstrated. ZnO nanowires were grown by hydrothermal synthesis while ~100 nm TiN nanoparticles were obtained by grinding commercial powders for several hours. They were then decorated on the ZnO nanowire arrays using acetone as the medium. Scanning electron microscopy confirmed the presence of TiN nanoparticles on the ZnO nanowires. TiN nanoparticles exhibited localized surface plasmon resonances at 430, 520 and 600 nm. SERS experiments using Nile Blue and Methylene Blue as the analyte molecules showed significant enhancement in the Raman signals. It is shown that the origin of the SERS effect is chemical in nature, due to charge transfer between the analyte molecule and the TiN nanoparticles. The current work, thus, represents a simple, cost-effective and facile method for the fabrication of TiN based surface enhanced Raman scattering substrates.
