Formation of graphene sheets through laser exfoliation of highly ordered pyrolytic graphite
Abstract
Freestanding two-dimensional (2D) few-layer graphene was formed through laser exfoliation of highly ordered pyrolytic graphite, using a pulsed neodymium-doped yttrium aluminum garnet (Nd:YAG) laser. Graphene sheets of several nanometers in thickness and micrometers in size were obtained. The laser exfoliation process was investigated at different laser fluences and distances between target and substrate. Three different phases, amorphous carbon, few-layer graphene sheets, and thin graphite films, were obtained as the laser fluence increased. This study reveals an existing route of forming freestanding 2D nanostructures through laser exfoliation.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 25, 2011
- Source ID
- 10.1063/1.3584021
Entities
People
- Franklin Feng Tao
- Jong Bok Park
- Lan Jiang
- Min Qian
- Su Mei Huang
- Yang Gao
- Yong Feng Lu
- Yun Shen Zhou
- Zhuo Sun
Organizations
- Beijing Institute of Technology
- East China Normal University
- National Science Foundation
- Office of Naval Research
- University of Nebraska–Lincoln