Graphene Sheets Stabilized on Genetically Engineered M13 Viral Templates as Conducting Frameworks for Hybrid Energy-Storage Materials
Abstract
Single-layer graphene sheets have significantly broadened the horizon of nanotechnology with the unique electronic, optical, quantum mechanical and mechanical properties associated with the two-dimensional atomic crystal structure. To best utilize this material for practical applications, it is crucial to prevent the spontaneous aggregation between individual graphene sheets while composite materials are formed. Numerous efforts have been made to stabilize functionalized graphene sheets on molecular[2] or polymeric species. Biomolecules such as DNA and proteins have also been grafted onto graphene planes and used for biosensors, controlled drug-delivery as well as cancer imaging. As well as biomedical applications, graphene sheets can also be hybridized with biomolecules into energy-storage devices to increase the conductivity of the active materials that are often insulators. In previous work, ultrasonication or chemical reduction, followed by heat treatment, have been adopted to achieve composites between graphene and various materials (e.g., LiFePO4 and SnO2. However, due to the non-specific nature of the interactions between the graphene templates and active materials, it is expected that only random and inhomogeneous contacts are created, leaving the segregation on nano- or even sub-micrometer levels.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2012
- Accession Number
- ADA578718
Entities
People
- Angela M. Belcher
- Dahyun Oh
- Hyunjung Yi
- Kang Xu
- Mark A. Allen
- Xiangnan Dang
- Yun J. Lee
Organizations
- University of California, Santa Barbara