Science Daily  February 19, 2018 The mechanism underlying the tunable emission appears to be very much dependent on the internal structure of the carbon dots, which differs amongst various preparation techniques. An international team of researchers (the Netherlands, China) studied the emission of individual carbon dots and compared it to the emission of the whole sample and showed that the emission colour of the individual carbon dots can be tuned from blue to red by changing the excitation wavelength, suggesting that multiple colour sites are present and active within a single nanoparticle. These findings demonstrate that it is viable to […]