000147992 001__ 147992 000147992 005__ 20250110163828.0 000147992 0247_ $$2doi$$a10.1016/j.apsusc.2019.144663 000147992 0248_ $$2sideral$$a116911 000147992 037__ $$aART-2020-116911 000147992 041__ $$aeng 000147992 100__ $$0(orcid)0000-0003-2660-3726$$aLafuente, Marta$$uUniversidad de Zaragoza 000147992 245__ $$aTowards the reproducible fabrication of homogeneous SERS substrates by Langmuir-Schaefer technique: A low cost and scalable approach for practical SERS based sensing applications 000147992 260__ $$c2020 000147992 5060_ $$aAccess copy available to the general public$$fUnrestricted 000147992 5203_ $$aThe development of homogeneous, endurable and low cost SERS (Surface Enhancement Raman Spectroscopy) substrates is becoming of outmost importance due to growing interest in SERS technique for analytical applications. Here, we use the Langmuir-Schaefer technique to produce, as demonstrated by Atomic Force Microscopy and Scanning Electron Microscopy, homogeneous tightly-packed films of 27 nm in diameter octadecylthiolate capped gold nanoparticles in a reproducible and simple manner. The fabricated Au-based SERS substrates result in an analytical enhancement factor (AEF) of 4.3 × 108 and enable the detection of Rhodamine 6G in a 10-11 M aqueous solution, with remarkable spatial uniformity of the SERS response over a scanned area of 0.4 cm2. In addition, the developed procedure is highly reproducible from batch to batch with a standard deviation below 10% in the SERS signal. Finally, these substrates exhibit durable SERS properties, i.e. experimentally validated 16 months after its fabrication. 000147992 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E31-17R$$9info:eu-repo/grantAgreement/ES/MICINN/CTQ2013-49068-C2-1-R 000147992 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/ 000147992 590__ $$a6.707$$b2020 000147992 591__ $$aCHEMISTRY, PHYSICAL$$b37 / 162 = 0.228$$c2020$$dQ1$$eT1 000147992 591__ $$aPHYSICS, CONDENSED MATTER$$b16 / 69 = 0.232$$c2020$$dQ1$$eT1 000147992 591__ $$aPHYSICS, APPLIED$$b30 / 160 = 0.188$$c2020$$dQ1$$eT1 000147992 591__ $$aMATERIALS SCIENCE, COATINGS & FILMS$$b1 / 21 = 0.048$$c2020$$dQ1$$eT1 000147992 592__ $$a1.294$$b2020 000147992 593__ $$aChemistry (miscellaneous)$$c2020$$dQ1 000147992 593__ $$aCondensed Matter Physics$$c2020$$dQ1 000147992 593__ $$aSurfaces, Coatings and Films$$c2020$$dQ1 000147992 593__ $$aSurfaces and Interfaces$$c2020$$dQ1 000147992 593__ $$aPhysics and Astronomy (miscellaneous)$$c2020$$dQ1 000147992 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/submittedVersion 000147992 700__ $$aRuiz-Rincón, Silvia 000147992 700__ $$0(orcid)0000-0002-4758-9380$$aMallada, Reyes$$uUniversidad de Zaragoza 000147992 700__ $$0(orcid)0000-0002-4729-9578$$aCea, Pilar$$uUniversidad de Zaragoza 000147992 700__ $$0(orcid)0000-0001-9897-6527$$aPina, María Pilar$$uUniversidad de Zaragoza 000147992 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Ingeniería Química 000147992 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física 000147992 773__ $$g506 (2020), 144663 1-8$$pAppl. surf. sci.$$tApplied Surface Science$$x0169-4332 000147992 8564_ $$s1929523$$uhttps://zaguan.unizar.es/record/147992/files/texto_completo.pdf$$yPreprint 000147992 8564_ $$s1568220$$uhttps://zaguan.unizar.es/record/147992/files/texto_completo.jpg?subformat=icon$$xicon$$yPreprint 000147992 909CO $$ooai:zaguan.unizar.es:147992$$particulos$$pdriver 000147992 951__ $$a2025-01-10-14:24:41 000147992 980__ $$aARTICLE