Plasmonic nanoantennas with efficient scattering and strong electromagnetic field confinement are integrated into atomically thin transition metal dichalcogenides to gain insight into nanoscale light–matter interactions. Herein, unusual quadrupole gap plasmons (QGPs) are introduced in the tailored nanoantennas. The field enhancement of such QGPs is further maximized by optimizing the structure of the nanoantennas using a statistical method. In addition, the optimized nanoantennas are employed on a chemical vapor reaction‐grown bilayer molybdenum disulfide (MoS₂) to tune and intensify the optical response of MoS₂. The optimized QGP structure performance was enhanced by a factor of 27.87 and a beneficial continuous bilayer MoS₂ can be applied in the hydrogen evolution reaction (HER) with superior outcomes. MoS₂@QGP acts as an excellent photocatalyst for HER activity because of its accelerated electron injection process, which is faster than the electron–hole pair recombination, supported by the good light‐trapping capacity of the QGP structure and plentiful accepting sites of the continuous bilayer MoS₂ film. The experimental results demonstrate that the QGP enhances the intrinsic catalytic properties of bilayer MoS₂ for photocatalytic reactions.

中文翻译：

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使用优化的纳米天线和双层MoS2杂交强四极隙等离子体等离子体，实现出色的光电化学氢析出

具有有效散射和强电磁场限制的等离子纳米天线被集成到原子上较薄的过渡金属二硫化氢中，以深入了解纳米级的光-质相互作用。在此，在定制的纳米天线中引入了不寻常的四极间隙等离子体激元（QGP）。通过使用统计方法优化纳米天线的结构，可以进一步最大化此类QGP的场增强。此外，优化的纳米天线可用于化学气相反应生长的双层二硫化钼（MoS ₂），以调谐和增强MoS ₂的光学响应。优化的QGP结构性能提高了27.87倍，并且有益的连续双层MoS ₂可用于氢气析出反应（HER）中，并具有优异的效果。MoS ₂ @QGP由于其加速的电子注入过程（比电子-空穴对重组更快）而具有出色的HER活性光催化剂，这得益于QGP结构良好的光俘获能力和连续电极的大量接受位。双层MoS ₂薄膜。实验结果表明，QGP增强了双层MoS ₂对光催化反应的内在催化性能。