Sulphur corrosion effect on the electrical performance of silver films elaborated by physical vapor deposition

Abstract

Electrical properties of Ag films elaborated by Physical Vapor Deposition (PVD) process has been studied before and after corrosion exposure.We have shown that the minimum thickness of silver to resist to sulphurization atmosphere is one micron with an adherent coating. After a sulfurization time of 600 min, an electrical resistivity increase of only 10 % is obtained for a film with 2 microns in thickness. This value is about 20 % higher than the electrical resistivity of pure silver bulk material.For industrial applications of silver coatings, these results are relevant and demonstrate that PVD is an interesting process compared to the electrochemical ones for which silver thicknesses close to 5 microns are necessarily coated.

Cohesively Enhancing the Conductance, Mechanical Robustness, and Environmental Stability of Random Metallic Mesh Electrodes via Hot-Pressing-Induced In-Plane Configuration

“…As shown in Figure b, the XPS survey spectrum confirmed the existence of Ag, O, and S on the surface of RM-FTCE after the accelerated test. Previous studies have revealed that silver sulfide is the main corrosion product, causing electrical failures of silver film . The high-resolution XPS spectrum of S 2p, as shown in Figure c, indicates that both the in-plane RM-FTCE and the out-of-plane RM-FTCE were all corroded during the accelerated test.…”

“…Previous studies have revealed that silver sulfide is the main corrosion product, causing electrical failures of silver film. 49 The high-resolution XPS spectrum of S 2p, as shown in Figure 4c, indicates that both the in-plane RM-FTCE and the out-of-plane RM-FTCE were all corroded during the accelerated test. However, the sulfurization degree of the in-plane RM-FTCE is rather weaker, comparing with that of the out-of-plane RM-FTCE.…”

Vapor-Deposited Biointerfaces and Bacteria: An Evolving Conversation

“…To fabricate biointerfaces containing silver, CVD methods commonly reduce a silver precursor to form nanometer-scale silver layers/composites/nanoparticles, whereas PVD typically involves transfer and deposition of metal silver. , Coatings of pure silver have been employed for a range of antimicrobial applications. Micron-thick silver PVD coatings on limb prosthetics have been utilized to prevent infection until skin cells took over to fill that role .…”

Photo-Induced Self-Assembly of Silver Nanoparticles for Rapid Generation of First and Second Surface Mirrors

“…Among the physical methods used to produce MNPs films, the Physical Vapor Deposition (PVD) approach is one of the best known; it has the advantage of not requiring solvents, but it uses heavy machinery and involves significant energy consumption. 10 Ghidelli et al used an ex situ synthesis of gold nanoparticles by pulsed laser deposition (PLD) to develop nanostructured Au films with tailored optical properties in a pure Ar background gas. 11 However, this method requires severe deposition conditions such as high background pressures, high number of laser shots (500 shots), and high temperature of post-deposition annealing treatments up to 650 °C.…”

“…Among the physical methods used to produce MNPs films, the Physical Vapor Deposition (PVD) approach is one of the best known; it has the advantage of not requiring solvents, but it uses heavy machinery and involves significant energy consumption [10]. Ghidelli et al used an ex-situ synthesis of gold nanoparticles by pulsed laser deposition (PLD) to develop nanostructured Au films with tailored optical properties in a pure Ar background gas [11].…”