On the self-damping nature of densification in photonic sintering of nanoparticles.

ABSTRACT: Sintering of nanoparticle inks over large area-substrates is a key enabler for scalable fabrication of patterned and continuous films, with multiple emerging applications. The high speed and ambient condition operation of photonic sintering has elicited significant interest for this purpose. In this work, we experimentally characterize the temperature evolution and densification in photonic sintering of silver nanoparticle inks, as a function of nanoparticle size. It is shown that smaller nanoparticles result in faster densification, with lower temperatures during sintering, as compared to larger nanoparticles. Further, high densification can be achieved even without nanoparticle melting. Electromagnetic Finite Element Analysis of photonic heating is coupled to an analytical sintering mode

SUBMITTER: MacNeill W 

PROVIDER: S-EPMC4595846 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature