Nanostructured organic semiconductor films for molecular detection with surface-enhanced Raman spectroscopy

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dc.authoridyilmaz, mehmet/0000-0003-2687-9167
dc.authoridUsta, Hakan/0000-0002-0618-1979
dc.authoridDemirel, Gokhan/0000-0002-9778-917X
dc.authoridDede, Yavuz/0000-0003-4854-8422
dc.authoridTamer, Ugur/0000-0001-9989-6123
dc.authoridfacchetti, antonio/0000-0002-8175-7958
dc.authoridGieseking, Rebecca/0000-0002-7343-1253
dc.contributor.authorYilmaz, Mehmet
dc.contributor.authorBabur, Esra
dc.contributor.authorOzdemir, Mehmet
dc.contributor.authorGieseking, Rebecca L.
dc.contributor.authorDede, Yavuz
dc.contributor.authorTamer, Ugur
dc.contributor.authorSchatz, George C.
dc.date.accessioned2025-03-23T19:35:47Z
dc.date.available2025-03-23T19:35:47Z
dc.date.issued2017
dc.departmentSinop Üniversitesi
dc.description.abstractpi-Conjugated organic semiconductors have been explored in several optoelectronic devices, yet their use in molecular detection as surface-enhanced Raman spectroscopy (SERS)-active platforms is unknown. Herein, we demonstrate that SERS-active, superhydrophobic and ivy-like nanostructured films of a molecular semiconductor, alpha,omega-diperfluorohexylquaterthiophene (DFH-4T), can be easily fabricated by vapour deposition. DFH-4T films without any additional plasmonic layer exhibit unprecedented Raman signal enhancements up to 3.4 x 10(3) for the probe molecule methylene blue. The combination of quantum mechanical computations, comparative experiments with a fluorocarbon-free alpha,omega-dihexylquaterthiophene (DH-4T), and thin-film microstructural analysis demonstrates the fundamental roles of the pi-conjugated core fluorocarbon substitution and the unique DFH-4T film morphology governing the SERS response. Furthermore, Raman signal enhancements up to similar to 10(10) and sub-zeptomole (< 10(-21) mole) analyte detection were accomplished by coating the DFH-4T films with a thin gold layer. Our results offer important guidance for the molecular design of SERS-active organic semiconductors and easily fabricable SERS platforms for ultrasensitive trace analysis.
dc.description.sponsorshipGazi University [05/2015-19]; Polyera Corporation; Turkish Academy of Sciences, Distinguished Young Scientist Award (TUBA-GEBIP); Shenzhen Peacock Plan project [KQTD20140630110339343]; BSF [AGMT-2012250///02]
dc.description.sponsorshipThis work was partially supported by Gazi University (grant no. 05/2015-19) and Polyera Corporation. G.D., H.U. and Y.D. acknowledge support from the Turkish Academy of Sciences, Distinguished Young Scientist Award (TUBA-GEBIP). A.F. thanks the Shenzhen Peacock Plan project (KQTD20140630110339343) and the BSF (AGMT-2012250///02).
dc.identifier.doi10.1038/NMAT4957
dc.identifier.endpage+
dc.identifier.issn1476-1122
dc.identifier.issn1476-4660
dc.identifier.issue9
dc.identifier.pmid28783157
dc.identifier.scopus2-s2.0-85028464875
dc.identifier.scopusqualityQ1
dc.identifier.startpage918
dc.identifier.urihttps://doi.org/10.1038/NMAT4957
dc.identifier.urihttps://hdl.handle.net/11486/5933
dc.identifier.volume16
dc.identifier.wosWOS:000408591300014
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherNature Publishing Group
dc.relation.ispartofNature Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectLight-Emitting Transistors
dc.subjectGold Nanorod Arrays
dc.subjectPolymeric Electronics
dc.subjectBuilding-Blocks
dc.subjectScattering
dc.subjectSers
dc.subjectDesign
dc.subjectPolarizability
dc.subjectNanoparticles
dc.subjectNanocrystals
dc.titleNanostructured organic semiconductor films for molecular detection with surface-enhanced Raman spectroscopy
dc.typeArticle

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