871824.fig.005a
(a)
871824.fig.005b
(b)
871824.fig.005c
(c)
871824.fig.005d
(d)
Figure 5: The changing regularities of the PL intensities of 2.313 eV (535.9 nm), 2.153 eV (575 nm), 2.024 eV (613 nm) ZPLs and diamond Raman line of the polycrystalline diamonds from the Mengyin kimberlite pipes ((a) and (b) EFPCDs; (c) and (d) ARPCDs).