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- W2803337529 abstract "We present a simple but robust strategy to engineering heteroatoms (N, S) on carbon dots (CDs) surface that results in a collection of enhanced photoluminescence (PL) emissions. The use of citric acid (CA) and 2-Imidazolidinethione (2-IZT) as precursors was envisioned to study the impact of thermolysis process on the PL properties. The proposed strategy, implemented at two different temperatures (180 °C and 200 °C), is suitable to produce CDs with tunable PL and quantum yield (QY) up to ∼32%. Similar to earlier reports of CA-based CDs, the self-assembling of fluorophores integrated into the CDs edge is hypothesized, however, in our CDs a double intriguing effect of blue- and red-shifting can be observed for PL as the wavelength of excitation is increased in the range 280-480 nm. Through a comprehensive characterization and evaluation of these CDs in water suspensions, the mechanisms that lead to PL multifarious emissions are proposed." @default.
- W2803337529 created "2018-06-01" @default.
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- W2803337529 date "2018-10-01" @default.
- W2803337529 modified "2023-10-18" @default.
- W2803337529 title "Prominence of fusion temperature and engineering heteroatoms on multifarious emissive shifts in carbon dots" @default.
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- W2803337529 doi "https://doi.org/10.1016/j.jcis.2018.05.040" @default.
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