Many colors from a single dot

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 engineer different emission colours within a single nanoparticle making carbon dots even more versatile than organic dyes or inorganic quantum dots opening new routes towards engineering of light-emission on the nanoscale… read more.  Open Access TECHNICAL ARTICLE

Wiley, Small 48/2017

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