Universität zu Köln

Valerius, Philipp, Herman, Alexander and Michely, Thomas (2019). Suppression of wrinkle formation in graphene on Ir(111) by high-temperature, low-energy ion irradiation. Nanotechnology, 30 (8). BRISTOL: IOP PUBLISHING LTD. ISSN 1361-6528

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Abstract

Graphene on Ir(111) is irradiated with small fluences of 500 eV He ions at temperatures close to its chemical vapor deposition growth temperature. The ion irradiation experiments explore whether it is possible to suppress the formation of wrinkles in Gr during growth. It is found that the release of thermal mismatch strain by wrinkle formation can be entirely suppressed for an irradiation temperature of 880 degrees C. A model for the ion beam induced suppression of wrinkle formation in supported Gr is presented, and underpinned by experiments varying the irradiation temperature or involving intercalation subsequent to irradiation.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Valerius, Philipp UNSPECIFIED UNSPECIFIED UNSPECIFIED Herman, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Michely, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-156377
DOI:	10.1088/1361-6528/aaf534
Journal or Publication Title:	Nanotechnology
Volume:	30
Number:	8
Date:	2019
Publisher:	IOP PUBLISHING LTD
Place of Publication:	BRISTOL
ISSN:	1361-6528
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language CARBON NANOPLATELET FORMATION; THERMAL-CONDUCTIVITY; DYNAMICS Multiple languages Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/15637