Details

Autor(en) / Beteiligte

• Lee, Choong-Kwang
• Hwangbo, Yun
• Kim, Sang-Min
• Lee, Seoung-Ki
• Lee, Seung-Mo
• Kim, Seong-Su
• Kim, Kwang-Seop
• Lee, Hak-Joo
• Choi, Byung-Ik
• Song, Chang-Kyu
• Ahn, Jong-Hyun
• Kim, Jae-Hyun

Titel

Monatomic Chemical-Vapor-Deposited Graphene Membranes Bridge a Half-Millimeter-Scale Gap

Ist Teil von

• ACS nano, 2014-03, Vol.8 (3), p.2336-2344

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• One of the main concerns in nanotechnology is the utilization of nanomaterials in macroscopic applications without losing their extreme properties. In an effort to bridge the gap between the nano- and macroscales, we propose a clever fabrication method, the inverted floating method (IFM), for preparing freestanding chemical-vapor-deposited (CVD) graphene membranes. These freestanding membranes were then successfully suspended over a gap a half-millimeter in diameter. To understand the working principle of IFM, high-speed photography and white light interferometry were used to characterize and analyze the deformation behaviors of the freestanding graphene membranes in contact with a liquid during fabrication. Some nanoscale configurations in the macroscopic graphene membranes were able to be characterized by simple optical microscopy. The proposed IFM is a powerful approach to investigating the macroscopic structures of CVD graphene and enables the exploitation of freestanding CVD graphene for device applications.