Evaluation of Interfacial Bonding Utilizing Ag2O-Derived SilverNanoparticles Using TEM Observation and Molecular DynamicsSimulation

摘要

The interfacial bonding utilizing Ag2O-derived silver nanoparticles was evaluated using TEM observation andmolecular dynamics simulation. The TEM observation reveals that the crystal orientation of the sintered silvercorresponded to that of the gold substrate. This is considered that the epitaxial layer of silver was formed through in-situformation of silver nanoparticles from Ag2O paste, and oriented in the direction of the gold crystal. MD simulationsuccessfully recreated the sintering behavior of silver nanoparticles and the gold substrate. The simulation results clearlyshowed the epitaxial layers of silver atoms were formed on the substrate. The existence of the closed pore indicates theacceleration of the sintering between nanoparticles and the gold substrate to minimize the total sum of surface energy andgrain boundary energy.