Details

Autor(en) / Beteiligte

• Yu, Kehan
• Wang, Pengxiang
• Lu, Ganhua
• Chen, Ke-Hung
• Bo, Zheng
• Chen, Junhong

Titel

Patterning Vertically Oriented Graphene Sheets for Nanodevice Applications

Ist Teil von

• The journal of physical chemistry letters, 2011-03, Vol.2 (6), p.537-542

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Graphene has attracted growing interest in the past few years. Growing vertically oriented graphene sheets with a designed pattern is practically attractive for device applications based on graphene. Here we report a patterned synthesis of vertical graphene nanosheets using plasma-enhanced chemical vapor deposition. Both experimental and modeling results suggest that the electric field distribution above the substrate material plays a key role in the graphene coverage. Vertical graphene patterns can thus be designed through artificially designing the surface electric field distribution. A field-effect transistor (FET) sensor device has been demonstrated for detection of low-concentration gases using vertically patterned graphene sheets bridging a metal electrode gap.