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Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry

[Image: see text] A simple procedure of producing three-dimensional blisters of graphene through irradiation of the visible range laser by Raman spectrometer has been presented. Fabrication of different volumes of the blisters and their characterization were carried out with Raman spectroscopy by tu...

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Autores principales: Tripathi, Manoj, King, Alice, Fratta, Giuseppe, Meloni, Manuela, Large, Matthew, Salvage, Jonathan P., Pugno, Nicola Maria, Dalton, Alan B.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644256/
https://www.ncbi.nlm.nih.gov/pubmed/31458322
http://dx.doi.org/10.1021/acsomega.8b02815
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author Tripathi, Manoj
King, Alice
Fratta, Giuseppe
Meloni, Manuela
Large, Matthew
Salvage, Jonathan P.
Pugno, Nicola Maria
Dalton, Alan B.
author_facet Tripathi, Manoj
King, Alice
Fratta, Giuseppe
Meloni, Manuela
Large, Matthew
Salvage, Jonathan P.
Pugno, Nicola Maria
Dalton, Alan B.
author_sort Tripathi, Manoj
collection PubMed
description [Image: see text] A simple procedure of producing three-dimensional blisters of graphene through irradiation of the visible range laser by Raman spectrometer has been presented. Fabrication of different volumes of the blisters and their characterization were carried out with Raman spectroscopy by tuning the irradiation dose. The produced blisters showed a consistency in altitude and a remarkable change in functionality, adhesion force map and local contact potential difference as compared to untreated monolayer graphene and naturally occurred graphene nanobubbles. Nevertheless, bilayer graphene is unaffected in the applied laser doses. The laser irradiation led to lattice expansion of carbon atoms and introduced oxygenic functional groups with the structural disorder. The internal pressure of the gaseous molecules was evaluated by monitoring the shape of the graphene blisters and nanobubbles. High-resolution Raman mapping showed the impact of laser-affected area and the defect density (n(d)) is reported as a function of displacement. Our results reveal ease of applicability of the Raman laser for the imaging and texturing of graphene pointing toward the possibility of the desirable and cost-effective laser writing at the submicron scale by tuning photochemistry of graphene which is pivotal for numerous applications.
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spelling pubmed-66442562019-08-27 Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry Tripathi, Manoj King, Alice Fratta, Giuseppe Meloni, Manuela Large, Matthew Salvage, Jonathan P. Pugno, Nicola Maria Dalton, Alan B. ACS Omega [Image: see text] A simple procedure of producing three-dimensional blisters of graphene through irradiation of the visible range laser by Raman spectrometer has been presented. Fabrication of different volumes of the blisters and their characterization were carried out with Raman spectroscopy by tuning the irradiation dose. The produced blisters showed a consistency in altitude and a remarkable change in functionality, adhesion force map and local contact potential difference as compared to untreated monolayer graphene and naturally occurred graphene nanobubbles. Nevertheless, bilayer graphene is unaffected in the applied laser doses. The laser irradiation led to lattice expansion of carbon atoms and introduced oxygenic functional groups with the structural disorder. The internal pressure of the gaseous molecules was evaluated by monitoring the shape of the graphene blisters and nanobubbles. High-resolution Raman mapping showed the impact of laser-affected area and the defect density (n(d)) is reported as a function of displacement. Our results reveal ease of applicability of the Raman laser for the imaging and texturing of graphene pointing toward the possibility of the desirable and cost-effective laser writing at the submicron scale by tuning photochemistry of graphene which is pivotal for numerous applications. American Chemical Society 2018-12-11 /pmc/articles/PMC6644256/ /pubmed/31458322 http://dx.doi.org/10.1021/acsomega.8b02815 Text en Copyright © 2018 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
spellingShingle Tripathi, Manoj
King, Alice
Fratta, Giuseppe
Meloni, Manuela
Large, Matthew
Salvage, Jonathan P.
Pugno, Nicola Maria
Dalton, Alan B.
Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title_full Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title_fullStr Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title_full_unstemmed Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title_short Laser-Based Texturing of Graphene to Locally Tune Electrical Potential and Surface Chemistry
title_sort laser-based texturing of graphene to locally tune electrical potential and surface chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644256/
https://www.ncbi.nlm.nih.gov/pubmed/31458322
http://dx.doi.org/10.1021/acsomega.8b02815
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