Sökning: id:"swepub:oai:DiVA.org:kth-228533" >
Direct observation ...
Direct observation of grain boundaries in graphene through vapor hydrofluoric acid (VHF) exposure
-
- Fan, Xuge (författare)
- KTH,Mikro- och nanosystemteknik
-
- Wagner, Stefan (författare)
- Faculty of Electrical Engineering and Information Technology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
-
- Schädlich, Philip (författare)
- Institute of Physics, Chemnitz University of Technology, Reichenhainer Straße 70, 09126 Chemnitz, Germany
-
visa fler...
-
- Speck, Florian (författare)
- Institute of Physics, Chemnitz University of Technology, Reichenhainer Straße 70, 09126 Chemnitz, Germany
-
- Satender, Kataria (författare)
- Faculty of Electrical Engineering and Information Technology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany
-
- Haraldsson, Tommy (författare)
- KTH,Mikro- och nanosystemteknik
-
- Seyller, Thomas (författare)
- Institute of Physics, Chemnitz University of Technology, Reichenhainer Straße 70, 09126 Chemnitz, Germany
-
- Lemme, Max C. (författare)
- Faculty of Electrical Engineering and Information Technology, Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen University, Otto-Blumenthal-Str. 25, 52074 Aachen, Germany ; Gesellschaft für angewandte Mikro- und Optoelektronik mbH (AMO GmbH), Advanced Microelectronic Center Aachen, Otto-Blumenthal Str. 25, 52074 Aachen, Germany
-
- Niklaus, Frank (författare)
- KTH,Mikro- och nanosystemteknik
-
visa färre...
-
(creator_code:org_t)
- American Association for the Advancement of Science, 2018
- 2018
- Engelska.
-
Ingår i: Science Advances. - : American Association for the Advancement of Science. - 2375-2548. ; 4:5
- Relaterad länk:
-
https://doi.org/10.1...
-
visa fler...
-
https://kth.diva-por... (primary) (Raw object)
-
https://www.science....
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- The shape and density of grain boundary defects in graphene strongly influence its electrical, mechanical, and chemical properties. However, it is difficult and elaborate to gain information about the large-area distribution of grain boundary defects in graphene. An approach is presented that allows fast visualization of the large-area distribution of grain boundary–based line defects in chemical vapor deposition graphene after transferring graphene from the original copper substrate to a silicon dioxide surface. The approach is based on exposing graphene to vapor hydrofluoric acid (VHF), causing partial etching of the silicon dioxide underneath the graphene as VHF diffuses through graphene defects. The defects can then be identified using optical microscopy, scanning electron microscopy, or Raman spectroscopy. The methodology enables simple evaluation of the grain sizes in polycrystalline graphene and can therefore be a valuable procedure for optimizing graphene synthesis processes.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology (hsv//eng)
Nyckelord
- Graphene
- Chemical vapor deposition
- CVD
- Grain boundaries
- line defects
- Vapor hydrofluoric acid (VHF)
- Optical microscopy
- large-area
- Teknisk materialvetenskap
- Materials Science and Engineering
- Chemical Engineering
- Kemiteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas