Trace gas sensing is critical for monitoring environmental pollution and detecting volatile organic compounds released from the human body. As a powerful analytical tool for identifying trace molecules, surface-enhanced Raman spectroscopy (SERS) enables remarkable amplification of normal Raman signals by using the surface plasmon resonance effect and charge-transfer effect with excellent sensitivity, noninvasive detection capability, and unique fingerprint effect, and it has been widely used in the field of analysis, especially for gas sensing.
Click here for original story, A highly sensitive SERS substrate for gas sensing
Source: Phys.org