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[求助]
Raman
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在文獻(xiàn)上看到用拉曼計(jì)算微晶尺寸的方法,但是不知道C是什么?請(qǐng)求各位大神幫忙,急急急!!1 The seminal paper studying disorder in graphitic samples is that of Tuinstra and Koening (TK) [26]. They noted that the ratio of the D peak intensity to that of the G peak varied inversely with La: I (D)/I (G)= C(λ)/La where C (488 nm) ~ 4.4 nm from Refs. [26,91,92,44]. There are few experimental verifications of TK where La is known independently by X-ray diffraction (XRD) [26,93–97], and the minimum La for which TK has been directly verified is ~2 nm. |
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