Mastering the wrinkling of self-supported graphene

0479930 - FZÚ 2018 RIV GB eng J - Journal Article
Pacáková, Barbara - Verhagen, Timotheus - Bouša, Milan - Huebner, U. - Vejpravová, Jana - Kalbáč, Martin - Frank, Otakar
Mastering the wrinkling of self-supported graphene.
Scientific Reports. Roč. 7, Aug (2017), s. 1-10, č. článku 10003. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA ČR GA14-15357S; GA MŠMT LL1301; GA MŠMT(CZ) LM2015073
Institutional support: RVO:68378271 ; RVO:61388955
Keywords : wrinkling * graphene
OECD category: Condensed matter physics (including formerly solid state physics, supercond.); Physical chemistry (UFCH-W)
Impact factor: 4.122, year: 2017

We present an approach that allows for the preparation of well-defined large arrays of graphene wrinkles with predictable geometry. Chemical vapor deposition grown graphene transferred onto hexagonal pillar arrays of SiO2 with sufficiently small interpillar distance forms a complex network of two main types of wrinkle arrangements. The first type is composed of arrays of aligned equidistantly separated parallel wrinkles propagating over large distances, and originates from line interfaces in the graphene, such as thin, long wrinkles and graphene grain boundaries. The second type of wrinkle arrangement is composed of non-aligned short wrinkles, formed in areas without line interfaces. All these properties make this wrinkled graphene a promising candidate for a material with enhanced chemical reactivity useful in nanoelectronic applications.
Permanent Link: http://hdl.handle.net/11104/0275844