The first-principles calculation method has been used to obtain electronic and structural properties of few-layer-graphenes (FLG), the layer spacing for N = 2, 3, 4, 5, 6, 7 and 8 AB stacked FLG¡¦s are calculated. It is found that the AB stacking is more favorable than the AA stacking and the layer spacing for the two-layer FLG is only 2.725Å, which is substantially reduced from that of the graphite. The average layer spacing for 3-, 4-, 5-, 6-, 7-, and 8-layer AB stacked FLG¡¦s are 3.389Å, 3.331Å, 3.317Å, 3.192Å, 3.220Å, and 3.220Å, respectively, which show that the average layer spacing approaches the bulk value when the number of layers is increased. For all 2- to 8-layer AB stacked FLG¡¦s energy bands overlap near EF and near K, which show that FLG¡¦s are semi-metallic.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0712107-193530 |
| Date | 12 July 2007 |
| Creators | Chen, Po-han |
| Contributors | Hsiung Chou, Min-Hsiung Tsai, Li-Wei Tu, none |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0712107-193530 |
| Rights | off_campus_withheld, Copyright information available at source archive |
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