Open AccessSynthesis and energy structure of optical transitions of the nitrogen and sulfur co-doped carbon dots
Author(s) -
Pavel Khavlyuk,
Irina A. Arefina,
Daniil P. Bondarenko,
K. V. Bogdanov,
Evgeniia A. Stepanidenko,
А. В. Баранов,
A. V. Fëdorov,
Elena V. Ushakova,
Aliaksei Dubavik,
Andrey L. Rogach
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1410/1/012020
Subject(s) - sulfur , photoluminescence , carbon fibers , heteroatom , thiourea , materials science , nitrogen , inorganic chemistry , doping , amorphous carbon , photochemistry , chemistry , amorphous solid , organic chemistry , optoelectronics , ring (chemistry) , composite number , metallurgy , composite material
A green and efficient strategy was developed for one-step synthesis of sulfur and nitrogen co-doped carbon dots using urea, thiourea and thioacetamide as nitrogen and sulfur source and citric acid as carbon source. The influence of nitrogen and/or sulfur doping of the carbon dots on their optical transitions is investigated. The as synthesized carbon dots are demonstrated to possess redshifted photoluminescence with relatively high intensity. It is demonstrated that the presence of heteroatoms leads to the red shift of the photoluminescence band and increase of the crystalline phase inherent to amorphous carbon.