Size-Controllable and Low-Cost Fabrication of Graphene Quantum Dots Using Thermal Plasma Jet
作者： Juhan Kim , Jung Sang Suh
DOI: 10.1021/NN404180W
关键词: Quantum dot 、 Analytical chemistry 、 Anode 、 Plasma 、 Fabrication 、 Materials science 、 Carbon 、 Soot 、 Graphene 、 Photoluminescence 、 General Engineering 、 General Physics and Astronomy 、 General Materials Science
摘要: We report a size-controllable and low-cost fabrication method of graphene quantum dots (GQDs) using thermal plasma jet. A carbon atomic beam was generated by injecting large amount (2.5 L/min) ethylene gas continuously into Ar plasma. The then flowed through tube (5–20 cm in length) attached to the anode dispersed chamber. Carbon materials including GQDs were made phase collision reaction. production rate soot 40 g/h for 2.5 L/min injection rate. Almost all ethanol sonication, while isolated stirring with rod. weight percent soot, based on extracted ethanol, about 10%. This means that 4 g/h. average size GQDs, relatively narrow distribution, controlled varying length attached. It 10, 14, 19 nm when 5, 10,...
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