Title:
Generation of the nanoparticle by the super-short pulse laser ablation of high Rate of return in a fluid
Document Type and Number:
Japanese Patent JP6234498
Kind Code:
B2
Abstract:
Various embodiments include a method of producing chemically pure and stably dispersed metal and metal-alloy nanoparticle colloids with ultrafast pulsed laser ablation. A method comprises irradiating a metal or metal alloy target submerged in a liquid with ultrashort laser pulses at a high repetition rate, cooling a portion of the liquid that includes an irradiated region, and collecting nanoparticles produced with the laser irradiation and liquid cooling. The method may be implemented with a high repetition rate ultrafast pulsed laser source, an optical system for focusing and moving the pulsed laser beams, a metal or metal alloy target submerged in a liquid, and a liquid circulating system to cool the laser focal volume and collect the nanoparticle products. By controlling various laser parameters, and with optional liquid flow movement, the method provides stable colloids of dispersed metal and metal-alloy nanoparticles. In various embodiments additional stabilizing chemical agents are not required.
Inventors:
Liu, Bin
Fu, Tendong
Makoto Murakami
Choi, Yong
Fu, Tendong
Makoto Murakami
Choi, Yong
Application Number:
JP2016051151A
Publication Date:
November 22, 2017
Filing Date:
March 15, 2016
Export Citation:
Assignee:
Imra America Inc.
International Classes:
B22F9/30; B01J13/00; B01J19/12; B22F1/0545; B82Y30/00; B82Y40/00
Domestic Patent References:
| JP4063203A | ||||
| JP2008012658A | ||||
| JP2004202439A | ||||
| JP62061630A | ||||
| JP2009527359A |
Foreign References:
| WO2007096465A1 |
Attorney, Agent or Firm:
Hidekazu Miyoshi
Masakazu Ito
Yuko Hara
Masakazu Ito
Yuko Hara
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