CUED Publications database

Chemical vapour deposition of freestanding sub-60 nm graphene gyroids

Cebo, T and Aria, AI and Dolan, JA and Weatherup, RS and Nakanishi, K and Kidambi, PR and Divitini, G and Ducati, C and Steiner, U and Hofmann, S (2017) Chemical vapour deposition of freestanding sub-60 nm graphene gyroids. Applied Physics Letters, 111. ISSN 0003-6951

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Abstract

The direct chemical vapour deposition of freestanding graphene gyroids with controlled sub-60 nm unit cell sizes is demonstrated. Three-dimensional (3D) nickel templates were fabricated through electrodeposition into a selectively voided triblock terpolymer. The high temperature instability of sub-micron unit cell structures was effectively addressed through the early introduction of the carbon precursor, which stabilizes the metallized gyroidal templates. The as-grown graphene gyroids are self-supporting and can be transferred onto a variety of substrates. Furthermore, they represent the smallest free standing periodic graphene 3D structures yet produced with a pore size of tens of nm, as analysed by electron microscopy and optical spectroscopy. We discuss generality of our methodology for the synthesis of other types of nanoscale, 3D graphene assemblies, and the transferability of this approach to other 2D materials.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Div B > Photonics
Depositing User: Cron Job
Date Deposited: 03 Jan 2018 20:11
Last Modified: 13 Apr 2021 08:38
DOI: 10.1063/1.4997774