Nickel-Silicon Related Color Center Formed in Nanodiamond Grains under CVD Growth

Figure 4

Raman spectrum of nanodiamond grain in the low frequency region excited by 785 nm diode laser. The spectrum was measured on the same spot of focused laser beam, from where the 865 nm PL system was detected. The peak positions are given in cm⁻¹. The assignments of the peaks and their references are given in Table 2.