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fengyiyu1981新虫 (初入文坛)
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[求助]
CVD法制备的石墨烯G峰高于2D
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| 如题,请教大侠,做了几次都是这样的,2D峰很尖锐,结构还可以,没有D峰,但是G峰高于2D峰,我查了相关的文献,基本上都是G/2D小于1的是单层,我这样的是石墨烯只能说明不是单层? |
wangganglzu
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【答案】应助回帖
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nuaajsh: 金币+1, 鼓励交流 2012-05-10 17:01:46
nuaajsh: 金币+1, 鼓励交流 2012-05-10 17:01:46
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we set a range of the G to 2D peak ratio from 0.7 to 1.3 and the fwhm of the 2D peak from45 to 60 cm-1 to estimate the bilayer coverage.Those that have a G to 2D peak ratio lower than 0.7 and fwhm of 2D peak lower than 45 cm-1 are considered to bemonolayer graphene, and the samples that have a G to 2D peak ratio higher than 1.3 and fwhm of the 2D peak higher than 60 cm-1 are considered few-layer graphene. 出自“Direct Growth of Bilayer Graphene on SiO2 Substrates by Carbon Diffusion through Nickel” |

12楼2012-05-10 16:44:41
haolanruoran
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2楼2012-04-10 23:16:34
Advcarbons
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3楼2012-04-11 09:09:00
fengyiyu1981
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4楼2012-04-11 11:20:46













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