Open AccessMethod of obtaining and studying the optical properties of carbon quantum dots.
Author(s) -
S.D. Bardasevska,
І. М. Budzulyak,
S. I. Budzulyak,
B.І. Rachiy,
R.V. Ilnytskyi,
B.N. Kulchytskyi,
Yu. Yu. Starchuk
Publication year - 2019
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.19.3.226-229
Subject(s) - exciton , extinction (optical mineralogy) , recombination , exponential function , carbon fibers , wavelength , fading , materials science , quantum dot , basis (linear algebra) , mechanism (biology) , chemical physics , optoelectronics , physics , chemistry , condensed matter physics , optics , quantum mechanics , mathematics , composite number , computer science , telecommunications , mathematical analysis , channel (broadcasting) , biochemistry , geometry , composite material , gene
The proposed method of synthesis of CQDs on the basis of nanoporous carbon obtained from plant raw materials. It is established that in the short-wave region a band is registered, which is due to the exciton mechanism of recombination, whereas in the long-wavelength region it is related to the state of defects. The kinetics of PL extinction is not strictly exponential, which most likely indicates the distributed nature of fading from individual emitters.