| Intrinsic energy dissipation in CVD-grown graphene nanoresonators. | |
| | |
MedLine Citation:
|
PMID: 22538383 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
We utilize classical molecular dynamics to study the quality (Q)-factors of monolayer CVD-grown graphene nanoresonators. In particular, we focus on the effects of intrinsic grain boundaries of different orientations, which result from the CVD growth process, on the Q-factors. For a range of misorientation angles that are consistent with those seen experimentally in CVD-grown graphene, i.e. 0° to ∼20°, we find that the Q-factors for graphene with intrinsic grain boundaries are 1-2 orders of magnitude smaller than that of pristine monolayer graphene. We find that the Q-factor degradation is strongly influenced by both the symmetry and structure of the 5-7 defect pairs that occur at the grain boundary. Because of this, we also demonstrate that the Q-factors of CVD-grown graphene can be significantly elevated, and approach that of pristine graphene, through application of modest (1%) tensile strain. |
| | |
Authors:
|
Zenan Qi; Harold S Park |
Related Documents
:
|
18305683 - Field-programmable smart-pixel arrays: design, vlsi implementation, and applications. 18238403 - A 3-d pw ultrasonic doppler flowmeter: theory and experimental characterization. 10071513 - Parkinsonian tremor and simplification in network dynamics. |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2012-4-27 |
Journal Detail:
|
Title: Nanoscale Volume: - ISSN: 2040-3372 ISO Abbreviation: - Publication Date: 2012 Apr |
Date Detail:
|
Created Date: 2012-4-27 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 101525249 Medline TA: Nanoscale Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Mechanical Engineering, 110 Cummington, Boston, MA 02215, USA. parkhs@bu.edu. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Measurement of guided mode wavenumbers in soft tissue-bone mimicking phantoms using ultrasonic axial...
Next Document: Synthesis and characterization of novel zwitterionic lipids with pH-responsive biophysical propertie...