Joining of silver nanoparticles by femtosecond laser irradiation method

Author

Su Ding ; Yanhong Tian ; Zhi Jiang ; Chenxi Wang

Author_Institution

State Key Lab. of Adv. Welding & Joining, Harbin Inst. of Technol., Harbin, China

fYear

2015

fDate

26-29 May 2015

Firstpage

1213

Lastpage

1218

Abstract

Femtosecond laser irradiation technique is a fast, effective and convenient method to join nanoparticles which has been applied in nanotechnology. The joining of silver nanoparticles with diameter of 150 nm on silicon slices are achieved with a simple femtosecond laser technique. The rapid laser irradiation generated tiny particles due to electron emission. The joining between adjacent silver nanoparticles has been observed by neck growth due to hot spots effect. The formation of the neck is due to the concentration of electromagnetic field under the femtosecond laser irradiation through the finite difference time domain simulation.

Keywords

electromagnetic fields; electron emission; elemental semiconductors; finite difference time-domain analysis; nanoparticles; nanotechnology; silicon; silver; Ag; Si; electromagnetic field concentration; electron emission; femtosecond laser irradiation method; finite difference time domain simulation; nanotechnology; silver nanoparticles joining; size 150 nm; Lasers; Nanoparticles; Neck; Radiation effects; Silver; Ultrafast electronics; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Components and Technology Conference (ECTC) , 2015 IEEE 65th

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/ECTC.2015.7159750

Filename

7159750