Subsurface chemical nanoidentification by nano-FTIR spectroscopy
dc.contributor.author | Mester, Lars | |
dc.contributor.author | Govyadinov, Alexander A. | |
dc.contributor.author | Chen, Shu | |
dc.contributor.author | Goikoetxea, Monika | |
dc.contributor.author | Hillenbrand, Rainer | |
dc.date.accessioned | 2020-10-20T10:31:04Z | |
dc.date.available | 2020-10-20T10:31:04Z | |
dc.date.issued | 2020-07-03 | |
dc.identifier.citation | Nature Communications 11 : (2020) // Article ID 3359 | es_ES |
dc.identifier.issn | 2041-1723 | |
dc.identifier.uri | http://hdl.handle.net/10810/47049 | |
dc.description.abstract | Nano-FTIR spectroscopy based on Fourier transform infrared near-field spectroscopy allows for label-free chemical nanocharacterization of organic and inorganic composite surfaces. The potential capability for subsurface material analysis, however, is largely unexplored terrain. Here, we demonstrate nano-FTIR spectroscopy of subsurface organic layers, revealing that nano-FTIR spectra from thin surface layers differ from that of subsurface layers of the same organic material. Further, we study the correlation of various nano-FTIR peak characteristics and establish a simple and robust method for distinguishing surface from subsurface layers without the need of theoretical modeling or simulations (provided that chemically induced spectral modifications are not present). Our experimental findings are confirmed and explained by a semi-analytical model for calculating nano-FTIR spectra of multilayered organic samples. Our results are critically important for the interpretation of nano-FTIR spectra of multilayer samples, particularly to avoid that geometry-induced spectral peak shifts are explained by chemical effects. Nano-FTIR spectroscopy allows chemical characterization of composite surfaces, but its capability in subsurface analysis is not much explored. The authors show that spectra from thin surface layers differ from those of subsurface layers of the same organic material, and establish a method for distinguishing them in experiments. | es_ES |
dc.description.sponsorship | This work has received funding from the European Union's Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 721874 (SPM2.0). The authors further acknowledge financial support from the Spanish Ministry of Science, Innovation and Universities (national project RTI2018-094830-B-100 and the project MDM-2016-0618 of the Marie de Maeztu Units of Excellence Program) and the Basque Government (grant No. IT1164-19). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Nature | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/721874 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | near-field microscopy | es_ES |
dc.subject | analytical-model | es_ES |
dc.subject | thin-films | es_ES |
dc.subject | scattering | es_ES |
dc.subject | nanospectroscopy | es_ES |
dc.subject | absorption | es_ES |
dc.subject | contrasts | es_ES |
dc.subject | scale | es_ES |
dc.title | Subsurface chemical nanoidentification by nano-FTIR spectroscopy | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.nature.com/articles/s41467-020-17034-6 | es_ES |
dc.identifier.doi | 10.1038/s41467-020-17034-6 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Electricidad y electrónica | es_ES |
dc.departamentoeu | Elektrizitatea eta elektronika | es_ES |
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