Figure 1.
Photoluminescence spectra of C-dot aqueous dispersion. Excitation wavelengths: (a) 300 nm, (b) 320 nm, (c) 340 nm, (d) 360 nm, (e) 380 nm, (f) 400 nm, and (g) 460 nm.
Photoluminescence spectra of C-dot aqueous dispersion. Excitation wavelengths: (a) 300 nm, (b) 320 nm, (c) 340 nm, (d) 360 nm, (e) 380 nm, (f) 400 nm, and (g) 460 nm.