Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


akron1291144388.pdf (18.83 MB)

ETD Abstract Container

Abstract Header

AFM Tip-Graphene-Surface Interactions

Subedi, Laxmi P.
http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388

Abstract Details

2010, Master of Science, University of Akron, Physics.
Graphene has high mobility of its charge carriers. It is the thinest and strongest material ever found. These extraordinary properties made graphene the most interesting and promising novel material. It has attracted great interest in recent years for various technological applications. For these applications graphene is placed on surfaces such as SiO2 and SiC. Here, we present theoretical investigations of graphene on SiO2 surface. Employing geometrical optimization and molecular dynamics simulation method at the atomic level, we studied AFM tip-graphene-surface interactions. Single (or double) layer and layer graphene with the sharp and the blunt tips were considered in our studies. Using the total energy calculations, we show that the interaction between bilayer graphene and SiO2 surface is stronger than mono-layer graphene and surface. Similarly we show that the interaction between the blunt tip and the surface is stronger than the sharp tip and surface. From energy minimization method, we found that there are periodic waves in graphene when it is placed in SiO2. By applying both energy minimization calculations and molecular dynamics simulation we show the structural changes in both monolayer and bilayer graphene in the presence of tip over graphene sheet. We believe these studies provide invaluable insight for graphene nanodevice applications.
Alper Buldum, Dr. (Advisor)
Ben Yu-Kuang Hu, Dr. (Committee Member)
Sasa V. Dordevic, Dr. (Committee Member)
55 p.
Chemistry; Physical Chemistry; Physics
graphene; monolayer graphene; bilayer graphene; geometrical optimization; energy minimization; molecular dynamics

Recommended Citations

Citations

  • Subedi, L. P. (2010). AFM Tip-Graphene-Surface Interactions [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388

    APA Style (7th edition)

  • Subedi, Laxmi. AFM Tip-Graphene-Surface Interactions. 2010. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388.

    MLA Style (8th edition)

  • Subedi, Laxmi. "AFM Tip-Graphene-Surface Interactions." Master's thesis, University of Akron, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1291144388

    Chicago Manual of Style (17th edition)

akron1291144388
610
© 2010, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.