Fig. 3
From: High-Efficient Excitation-Independent Blue Luminescent Carbon Dots
PL spectra of CDs in different volume of deionized water. a PL spectra of 1 ml as-prepared CDs with 5 ml deionized water (pH 10.41). b Normalized fluorescence emission spectra of CDs in different volume of water with the excitation wavelength of 330 nm. c The maximum PL intensity and the emission peak as the function of different volume of added water. d Emission spectra of diluting 1 ml as-prepared CDs solution with 300 ml deionized water