Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.2938058
Title: An ab initio study on energy gap of bilayer graphene nanoribbons with armchair edges
Authors: Lam, K.-T.
Liang, G. 
Issue Date: 2008
Citation: Lam, K.-T., Liang, G. (2008). An ab initio study on energy gap of bilayer graphene nanoribbons with armchair edges. Applied Physics Letters 92 (22) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.2938058
Abstract: Dependency of energy bandgap (Eg) of bilayer armchair graphene nanoribbons (AGNRB) on their widths, interlayer distance (D), and edge doping concentration of boron/nitrogen was investigated using local density approximation and compare to the results of monolayer graphene nanoribbons (AGNRM). Although Eg of AGNRB, in general, is smaller than that of AGNRM, of AGNRB exhibits two distinct groups, metal and semiconductor, while AGNRM displays purely semiconducting behavior. Moreover, Eg of AGNRB is highly sensitive to D, indicating a possible application in tuning Eg by varying D. Finally, edge doping of both AGNR systems reduces Eg by 11%-17%/4%-10% for AGNRM AGNRB, respectively. © 2008 American Institute of Physics.
Source Title: Applied Physics Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/81947
ISSN: 00036951
DOI: 10.1063/1.2938058
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