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Hydrophobic N-doped carbon quantum dots (N-CQDs) were prepared using citric acid and L-phenylalanine through hydrothermal synthesis at optimum conditions (temperature T = 200 °C and time t = 9 h) and thoroughly investigated with different techniques. In organic solvents (ethanol, chloroform, dimethyl formamide, and xylene) under 350 nm excitation wavelength, N-CQDs exhibit intensive blue photoluminescence (PL) with the quantum yield equal to 36.5 %. Being embedded into polymer matrices (poly(methyl methacrylate) and epoxy resin), N-CQDs preserved their high PL. © 2024 Elsevier B.V.
Original languageEnglish
JournalChemical Physics Letters
Volume841
DOIs
StatePublished - 1 Apr 2024

    Research areas

  • Hydrothermal synthesis, N-doped carbon quantum dots, Organic precursors, Photoluminescent composite films, Amino acids, Carbon, Carbon films, Chlorine compounds, Citric acid, Doping (additives), Epoxy resins, Esters, Nanocrystals, Organic carbon, Organic solvents, Semiconductor quantum dots, Temperature, Carbon quantum dots, Dimethyl formamide, Doped carbons, Excitation wavelength, Hydrophobics, N-doped, N-doped carbon quantum dot, Optimum conditions, Organic precursor, Photoluminescent composite film

ID: 117802834