Growth of graphene on Ir(111)

By J. Coraux, A. N’Diaye, M. Engler, C. Busse, D. Wall, N. Buckanie, Frank-J., Meyer zu Heringdorf, R. Gastel, B. Poelsema and 1 more. 2009

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Catalytic decomposition of hydrocarbons on transition metals attracts a renewed interest as a route toward high-quality graphene prepared in a reproducible manner. Here we employ two growth methods for graphene on Ir(111), namely room temperature adsorption and thermal decomposition at 870–1470 K (temperature programmed growth (TPG)) as well as direct exposure of the hot substrate at 870–1320 K (chemical vapor deposition (CVD)). The temperature- and exposure-dependent growth of graphene is investigated in detail by scanning tunneling microscopy. TPG is found to yield compact graphene islands bounded by C zigzag edges. The island size may be tuned from a few to a couple of tens of nanometers through Smoluchowski ripening. In the CVD growth, the carbon in ethene molecules arriving on the Ir surface is found to convert with probability near unity to graphene. The temperature-dependent nucleation, interaction with steps and coalescence of graphene islands are analyzed and a consistent model for CVD growth is developed.

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/677d9dde56e8f00c6bcd1b097ea0470bcbe4190a

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In Atomic and Molecular Physics, and Optics

In Materials Chemistry

Citations in the corpus

Mechanics of freely‐suspended ultrathin layered materials (2014, background): “bstrates [40], by chemical vapour deposition (CVD) on copper [41] or nickel [42] substrates, by carbon segregation or by thermal decomposition of organic molecules on the surface of transition metals [43, 44, 45, 46]. Note that graphene grown on metal surfaces usually needs a transfer step to fabric”
Graphene Sensors (2011, background): “Much success has been obtained in CVD growth of graphene on transition metal substrates such as Ni [16], Pd [17], Ru [18], Ir [19], and Cu [20].”
Graphene Quantum Dots: Graphene-Enhanced Nanomaterials for Wall Painting Protection (Adv. Funct. Mater. 44/2018) (2018, neutral): “synthesis of graphene are Ni, Fe, Au, steel, Single crystal of Ru, Rh, Ir, Pt and Pd (Coraux et al., 2009; John et al., 2011; Kim et al., 2009; Kondo et al., 2010; Kwon et al., 2009; Land et al., 1992; Loginova et al., 2008; Oznuluer et al., 2011; Reina et al., 2008; Sutter et al., 2008; Van Gastel ”