公开(公告)号：EP2391455A4

公开(公告)日：2013-08-07

申请号：EP09839437

申请日：2009-03-19

Applicant: IMRA AMERICA INC

Inventor： LIU BING ,  HU ZHENDONG ,  MURAKAMI MAKOTO ,  CHE YONG

IPC: B02C19/00

CPC classification number: B02C19/18 ,  B01J13/0043 ,  B01J19/121 ,  B22F1/0022 ,  B22F9/04 ,  B22F2999/00 ,  B82Y30/00 ,  B22F2202/11

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.

Abstract translation: 消融各种实施例包括与超快脉冲激光产化学纯和稳定地分散金属和金属合金纳米颗粒胶体的方法。 一种方法包括：照射以高重复率与超短激光脉冲的浸入液体金属或金属合金靶，冷却该液体的一部分确实包括在照射区域，并且收集与所述激光照射和液体冷却产生纳米颗粒。 该方法可以以高重复率的超快脉冲激光源光学系统用于聚焦和移动所述脉冲激光束，在液体浸没的金属或金属合金靶来实现，并且循环系统的液体以冷却激光聚焦体积和 收集纳米产品。 通过控制各种激光参数，并带有可选的液流移动，该方法提供分散的金属和金属合金纳米颗粒的稳定胶体。 在各种实施例不需要额外的稳定的化学试剂。

公开(公告)号：EP2274771A4

公开(公告)日：2012-03-07

申请号：EP09758837

申请日：2009-03-11

Applicant: IMRA AMERICA INC

Inventor： MURAKAMI MAKOTO ,  HU ZHENDONG ,  LIU BING ,  CHE YONG ,  LIU ZHENLIN ,  UEHARA YUZURU

IPC: H01L21/44 ,  C23C14/08 ,  C23C14/28 ,  C23C14/56 ,  H01S3/00

CPC classification number: C23C14/28 ,  C23C14/08 ,  C23C14/564 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/2308