TY - JOUR
T1 - Opening a large band gap for graphene by covalent addition
AU - Gao, Xingfa
AU - Wei, Zhongqing
AU - Meunier, Vincent
AU - Sun, Yiyang
AU - Zhang, Shengbai B.
N1 - Funding Information:
Zhongqing Wei is currently a full Professor of Chemistry at the Chinese Academy of Sciences (CAS) in Beijing. He received a PhD degree in Physical Chemistry from CAS, and continued his research in the United States in the field of nanotechnology for over eight years. He is the author of over thirty peer-reviewed publications with a total of approximately 1000 citations so far. Wei has received a number of awards, including the P & G award of CAS for PhD Recipients with Excellent Performances, the Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship, the United States National Research Council (NRC) Research Associateship Award at Naval Research Laboratory (NRL), and the NRC/NRL Research Publication Award. His main research interests are surface chemistry, nanomaterials and nanostructures, biosensing, and scanning probe microscopy.
Funding Information:
This work was supported by MOST 973 program (2012CB934001, 2011CB933400, 2011CB933101 and Y11J22107A), the Department of Energy under Grant No. DE-SC0002623 , and CAS Hundreds Elite Program ( Y1515530U1 and Y1291720S3 ). We thank Prof. Paul E. Sheehan at Naval Research Laboratory for improving the English and Mr. Jia-Jia Zheng at Institute of High Energy Physics for editing the manuscript.
PY - 2013/1/3
Y1 - 2013/1/3
N2 - Here we establish a fundamental principle to open a relatively large band gap for graphene by hydrogenation. Specifically, the large band gap can be obtained when the number of nonmagnetic sp2-substructures on graphene basal plane is maximized. The principle indicates unequivocally what additive patterning should be used to attain the largest band gap for a given addition coverage. According to this principle, the graphene band gap can be continuously tuned from 0 to 5.2 eV. These findings may open a door to create graphene-based nanosystems with desired band gaps, and will become a significant foundation for graphene nanotechnology applications.
AB - Here we establish a fundamental principle to open a relatively large band gap for graphene by hydrogenation. Specifically, the large band gap can be obtained when the number of nonmagnetic sp2-substructures on graphene basal plane is maximized. The principle indicates unequivocally what additive patterning should be used to attain the largest band gap for a given addition coverage. According to this principle, the graphene band gap can be continuously tuned from 0 to 5.2 eV. These findings may open a door to create graphene-based nanosystems with desired band gaps, and will become a significant foundation for graphene nanotechnology applications.
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U2 - 10.1016/j.cplett.2012.10.069
DO - 10.1016/j.cplett.2012.10.069
M3 - Article
AN - SCOPUS:84871387349
SN - 0009-2614
VL - 555
SP - 1
EP - 6
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -