Enhanced Raman scattering based on a ZnO/Ag nanostructured substrate: an in-depth study of the SERS mechanism
Thu Trang Tran, Xuan Hoa Vu, Thi Lan Ngo, Thị Thu Hà Phạm, Dac Dien Nguyen, Van Dang Nguyen
Abstract
the Ag substrate in which charge transfer plays a pivotal role. To the best of our knowledge, this is the first investigation that has clarified the mechanism and advantage of semiconductor/metal (ZnO/Ag nanostructures) even over noble metals (Ag nanoparticles) in SERS applications. Moreover, the SERS behavior based on the ZnO/Ag substrate was also examined and the results indicated high sensitivity and good repeatability.
Topics & Concepts
Raman scatteringSubstrate (aquarium)Mechanism (biology)Materials scienceRaman spectroscopyNanotechnologyNanostructureScatteringChemical engineeringOpticsPhysicsGeologyOceanographyQuantum mechanicsEngineeringGold and Silver Nanoparticles Synthesis and ApplicationsCopper-based nanomaterials and applicationsLaser-Ablation Synthesis of Nanoparticles