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Production of organic compound nanoparticles with high repetition rate ultrafast pulsed laser ablation in liquids
Production of organic compound nanoparticles with high repetition rate ultrafast pulsed laser ablation in liquids
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机译:液体中具有高重复率超快脉冲激光烧蚀的有机化合物纳米颗粒的生产
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摘要
Disclosed is a method of producing a chemically pure and stably dispersed organic nanoparticle colloidal suspension using an ultrafast pulsed laser ablation process. The method comprises irradiating a target of an organic compound material in contact with a poor solvent with ultrashort laser pulses at a high repetition rate and collecting the nanoparticles of the organic compound produced. The method may be implemented with a high repetition rate ultrafast pulsed laser source, an optical system for focusing and moving the pulsed laser beam, an organic compound target in contact with a poor solvent, and a solvent circulating system to cool the laser focal volume and collect the produced nanoparticle products. By controlling various laser parameters, and with optional poor solvent flow movement, the method provides stable colloids of dispersed organic nanoparticles in the poor solvent in the absence of any stabilizing agents.
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