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mixiao777新虫 (著名写手)
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[求助]
碳纳米管的光激发光发射强度 photoluminescence emission intensities
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Fluorescent Nanomaterials | 石墨烯与碳纳米管 | 石墨烯碳纳米管技术顶级参考 |
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【讨论】二十一项值得获诺贝尔化学奖的工作及科学家
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mixiao777
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8楼2012-11-13 16:40:03
sally208
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mixiao777: 金币+3, ★★★很有帮助, 受益~ 2012-11-13 16:40:48
感谢参与,应助指数 +1
mixiao777: 金币+3, ★★★很有帮助, 受益~ 2012-11-13 16:40:48
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http://en.wikipedia.org/wiki/Carbon_nanotube ... The structure of a SWNT can be conceptualized by wrapping a one-atom-thick layer of graphite called graphene into a seamless cylinder. The way the graphene sheet is wrapped is represented by a pair of indices (n,m). The integers n and m denote the number of unit vectors along two directions in the honeycomb crystal lattice of graphene. If m = 0, the nanotubes are called zigzag nanotubes, and if n = m, the nanotubes are called armchair nanotubes. Otherwise, they are called chiral. The diameter of an ideal nanotube can be calculated from its (n,m) indices as follows ...... |
2楼2012-11-12 18:36:29
alexanderp
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3楼2012-11-12 22:55:05
mixiao777
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4楼2012-11-13 10:17:59







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