skip to main content

Title: Dry-cleaning of graphene

Studies of the structural and electronic properties of graphene in its pristine state are hindered by hydrocarbon contamination on the surfaces. Also, in many applications, contamination reduces the performance of graphene. Contamination is introduced during sample preparation and is adsorbed also directly from air. Here, we report on the development of a simple dry-cleaning method for producing large atomically clean areas in free-standing graphene. The cleanness of graphene is proven using aberration-corrected high-resolution transmission electron microscopy and electron spectroscopy.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3]
  1. Central Facility for Electron Microscopy, Group of Electron Microscopy of Materials Science, Ulm University, Albert-Einstein-Allee 11, Ulm 89081 (Germany)
  2. (Germany)
  3. Faculty of Physics, University of Bielefeld, Universitätsstr. 25, Bielefeld 33615 (Germany)
Publication Date:
OSTI Identifier:
22262618
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 15; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CLEANING; ELECTRON SPECTROSCOPY; GRAPHENE; SAMPLE PREPARATION; TRANSMISSION ELECTRON MICROSCOPY