Title :
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
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;
Conference_Titel :
Electronic Components and Technology Conference (ECTC) , 2015 IEEE 65th
Conference_Location :
San Diego, CA
DOI :
10.1109/ECTC.2015.7159750
