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ABSTRACT
Surface-enhanced spectroscopy (SES) is a consequence of extreme electromagnetic fields and chemical interactions near a surface. SES is highly sensitive and selective and has been exploited in chemistry, physics, biology, and medicine. It is a rapidly developing technique and is expected to become an important analysis tool. This review introduces theories and concepts of SES techniques including surface-enhanced (SE) Raman scattering, SE infrared absorption, SE chiroptical spectroscopy, and SE fluorescence. Then recent research and applications are discussed to indicate current challenges and future directions.
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Funding
This work is financially supported by the National Research Foundation grants (NRF-2015R1A5A1037668) funded by the Ministry of Science and ICT (MSIT), Korea. Sunae So acknowledges the Global Ph.D. Fellowship (NRF-2017H1A2A1043322) from NRF-MSIT, Korea.