Effective doping of single-layer graphene from underlying SiO2 substrates

• Main Authors: Shi, Yumeng, Dong, Xiaochen, Chen, Peng, Wang, Junling, Li, Lain-Jong
• Other Authors: School of Materials Science & Engineering
• Format: Article
• Language: English
• Published: 2011
• Subjects: DRNTU::Engineering::Materials::Nanostructured materials
• Online Access: https://hdl.handle.net/10356/93941; http://hdl.handle.net/10220/6936
• Institution: Nanyang Technological University

When a single-layer graphene (SLG) is on SiO2 substrates, the charge exchange at their interface results in a dipole, which direction strongly depends on the contact potential difference between the SLG and the substrates. Due to the longer experimental charge screening length of SLG than its...