Trace-level detection and classifications of pentaerythritol tetranitrate via geometrically optimized film-based Au/ZnO SERS sensors

This work has explored the scalable, multi-batch fabrication process of the Au-decorated ZnO nanorod (NR) SERS sensors with five designed geometries (A to E), based on the hydrothermally synthesized ZnO NR templates prepared at different reaction time (3.0, 4.5, 6.0, 8.0, and 10.0 h). Each sample ge...

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