Simple, Flexible, and Ultrastable Surface Enhanced Raman Scattering Substrate Based on Plasmonic Nanopaper Decorated with Graphene Oxide

• DOI: 10.1002/adom.201800548
• Publication Date: 2018-07-03T06:39:17Z
• Authors: Erika Rodríguez‐S...; Gloria Verónica V...; Eden Morales‐Narváez
• Keywords: Rhodamine 6G; Surface-Enhanced Raman Spectroscopy

Abstract Surface enhanced Raman spectroscopy (SERS) is becoming a paramount analytical mechanism in nanotechnology and biological/chemical detection. However, fabrication of highly sensitive SERS substrates often involves expensive time‐consuming procedures the resulting materials require careful handling. Herein, simple‐to‐manufacture, sensitive, easy‐to‐handle substrate enabled by plasmonic nanopaper decorated with graphene oxide flakes reported. Owing to physicochemical properties gathered this substrate, nanocomposite leads flexible platform facilitating: a) analysis model analyte (Rhodamine 6G) via high energy laser (457 nm) negligible fluorescent background, which important achieve maximum excitation respective localized surface plasmon resonance; b) charge transferring phenomenon associated derivative that, operating synergy previous phenomenon, enhances signal allows an limit detection 0.13 × 10 −9 m , about 2900‐fold lower than that obtained counterpart made silver nanoparticle‐decorated nanopaper; c) ultrastable remains completely constant at least during 50 days. Furthermore, amenable cost‐efficient large‐scale production process, furthers laboratory real world applications SERS.