Electrical/thermal behaviors of bimetallic (Ag–Cu, Ag–Sn) nanoparticles for printed electronics

Abstract

In this work, Ag-Cu and Ag-Sn nanoparticles (NPs) were synthesized by a physical vapor condensation method, i.e. DC arc-discharge plasma. The as-prepared bimetallic nanoparticles consist of metallic cores of Ag-Cu or Ag-Sn and ultrathin oxide shells of CuO or a hybrid of SnO and SnO2. Ag-Sn NPs exhibit a room temperature resistivity of 4.24×10 -5 Ω•cm, a little lower than 7.10×10 -5 Ω•cm of Ag-Cu NPs. Both bimetallic nanoparticles demonstrate a typical metallic conduction behavior with a positive temperature coefficient of resistance (TCR) over 25-300 K. Ag-Sn NPs exhibit thermally competitive stability up to 230 °C and a lower resistivity of 3.18×10 -5 Ω•cm after sintering at 200 °C, making it potential for the flexible printed electronics.

Durable Hydrogen Peroxide Biosensors Based on Polypyrrole-Decorated Platinum/Palladium Bimetallic Nanoparticles

“…Due to the alloy feature, the conductivity of PPy-PtPd was worse than that of PPy-Pt. 36 As shown in Figure 4C, the peaks at −0.5 V in the DPV were consistent with the results in CV and EIS. Although there was an observable peak for PPy, the catalytic effects of PPy on H 2 O 2 was low (Figure 4D).…”

“…The R ct difference between PPy-Pt and PPy-Pd may be explained by the morphological variety. Due to the alloy feature, the conductivity of PPy-PtPd was worse than that of PPy-Pt . As shown in Figure C, the peaks at −0.5 V in the DPV were consistent with the results in CV and EIS.…”

Co-digestive ripening assisted phase-controlled synthesis of Ag–Sn intermetallic nanoparticles and their dye degradation activity

“…17 Wang et al used the physical vapour condensation approach to synthesize Ag-Sn nanoparticles in which spherical Ag 3 Sn nanoparticles were obtained along with Sn with a size of 64 nm. 12 Besides that, the galvanic displacement method has been used to synthesize the Ag-Sn intermetallic core with a SnO 2 shell, 14,26 and the Ag 3 Sn/Ag 4 Sn intermetallic shell with the core of Sn nanoparticles. 27 Most of the reports either show the appearance of the β-Sn phase along with the Ag-Sn intermetallic phase and/ or a broad range of size distributions.…”

“…10 Sn is an abundant and inexpensive element which not only enhances the performance of the corresponding monometallic nanocrystals into which it is incorporated but also reduces the overall cost of the material. Among the Sn-based intermetallics, the Ag–Sn system has potential applications as lead-free solders, 11 inkjet printing materials, 12 and electrode materials for Li-ion batteries. 13 Recently, Ag–Sn based intermetallic nanomaterials have also attracted considerable attention as electrocatalysts for CO 2 reduction, oxygen reduction and borohydride oxidation reactions.…”

Effects of Outer Shell Layer on the Electronic Transport Behaviors of Sn@SnOx Nanoparticles

“…However, both the electrical transport and the critical field were greatly size related. [ 21 ] In our previous work, the superconductive phenomenon was also found in multiwalled carbon nanotube‐coated Sn nanoparticles (Sn@CNT) [ 22 ] and bimetallic Ag–Sn nanoparticles, [ 23 ] even though they are completely coated by dielectric layers of CNTs and SnO/SnO 2 , respectively.…”