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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Raman Spectra and Bulk Modulus of Nanodiamond in a Size Interval of 2–5 nm

Fig. 3

Raman spectra of the 2–5-nm nanodiamond at the 257 and 458-nm excitation wavelengths. Raman spectra compose of peaks at 1325 cm−1 (with the shoulder around 1250 cm−1), 1600 cm−1 and the 1500 cm−1 band observed at 458 nm which shifts to 1630 cm−1 at 257 nm. In addition, sp2-bonded pollution at 1360 and 1620 cm−1 (D and G bands) are present in the spectra. Lorentz multi-peaks fits are plotted

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