In this paper, we demonstrate the use of nano-engineered Ir/IrO₂ nanofibers (NFs) as substrates for surface-enhanced Raman scattering (SERS). We employed the electrospinning and annealing process to fabricate the IrO₂ nanofibers featuring of interconnected nanoparticles. The obtained IrO₂ NFs were subjected to reduction process as a function of time (5–180 min). IrO₂ NFs were fully converted to Ir metal after 120 mins of reduction. The resulting structures were examined as SERS substrates using rhodamine 6G (R6G) molecule excited by 632.8 nm laser. A distinct Raman signal of R6G was identified and its intensity gradually increased as a function of the reduction time of IrO₂ NFs. UV/vis spectrum of Ir NFs showed increase of absorption at 632.8 nm, concluding that the enhanced Raman signal is due to the electromagnetic field enhancement at the Ir metal. This work is the first to report the nano-engineering of Ir/IrO₂ nanofibers for a SERS application.

在本文中，我们展示了使用纳米工程 Ir/IrO ₂纳米纤维 (NFs) 作为表面增强拉曼散射 (SERS) 的基底。我们采用静电纺丝和退火工艺制造了具有互连纳米颗粒的IrO ₂纳米纤维。获得的 IrO ₂ NFs 经历了作为时间函数的还原过程（5-180 分钟）。还原 120 分钟后， IrO ₂ NFs 完全转化为 Ir 金属。使用由 632.8 nm 激光激发的罗丹明 6G (R6G) 分子将所得结构作为 SERS 基板进行检查。_{确定了 R6G 的独特拉曼信号，其强度随着 IrO 2}的还原时间而逐渐增加NF。Ir NFs 的 UV/vis 光谱显示在 632.8 nm 处的吸收增加，结论是增强的拉曼信号是由于 Ir 金属处的电磁场增强。这项工作首次报道了用于 SERS 应用的 Ir/IrO _{2纳米纤维的纳米工程。}