In situ formation and doping of Ag/SnO 2 electrical contact materials

Li, Guijing; Fang, Xue-Qian; Feng, Wenjie; Liu, Jinxi

doi:10.1016/j.jallcom.2017.04.288

Cited by 35 publications

(2 citation statements)

References 20 publications

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“…Several authors used many dopants such as Ag, Al, Ga, Zn, In, Mn, Sb, and Ru in SnO 2 films to improve these properties [11][12][13][14][15][16][17][18]. Among these dopants, Zr can obtain a high quality of films for optoelectronic device applications [19].…”

Section: Introductionmentioning

confidence: 99%

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Reddy¹,

Akkera

Sekhar

et al. 2017

Appl. Phys. A

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Section: Introductionmentioning

confidence: 99%

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Reddy¹,

Akkera

Sekhar

et al. 2017

Appl. Phys. A

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“…High contact resistance: Ag-SnO 2 materials exhibit greater contact resistance than Ag-CdO composites [ 11 , 12 ]. This behavior is attributed to the formation of a SnO 2 -rich layer on the contact surface during device operation, due to the greater thermal stability of SnO 2 than that of CdO, and the poor wettability between SnO 2 and molten Ag [ 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and Arc Erosion Behavior of Ag-SnO2-ZnO Electrical Contact Materials

et al. 2023

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This study investigated the synthesis of Ag-SnO2-ZnO by powder metallurgy methods and their subsequent electrical contact behavior. The pieces of Ag-SnO2-ZnO were prepared by ball milling and hot pressing. The arc erosion behavior of the material was evaluated using homemade equipment. The microstructure and phase evolution of the materials were investigated through X-ray diffraction, energy-dispersive spectroscopy and scanning electron microscopy. The results showed that, although the mass loss of the Ag-SnO2-ZnO composite (9.08 mg) during the electrical contact test was higher than that of the commercial Ag-CdO (1.42 mg), its electrical conductivity remained constant (26.9 ± 1.5% IACS). This fact would be related to the reaction of Zn2SnO4’s formation on the material’s surface via electric arc. This reaction would play an important role in controlling the surface segregation and subsequent loss of electrical conductivity of this type of composite, thus enabling the development of a new electrical contact material to replace the non-environmentally friendly Ag-CdO composite.

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Adhesion, Stability and Electronic Properties of Ag/SnO₂ Interface from First‐Principles Calculation

Xu,

Li,

Teng

et al. 2024

Cryst. Res. Technol.

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The interfacial bonding state between each oxide and the silver matrix in AgCuOIn2O3SnO2 electrical contact materials remains unclear. To address this, first‐principles calculations using density‐functional theory are employed to establish the low‐index surfaces of Ag and SnO2 and perform convergence tests. Computational results reveal that the Ag (111) surface and the SnO2(110)‐O surface exhibit the highest stability among their respective low‐index surfaces. Consequently, these surfaces are chosen to form the interfacial model, and their atomic structure, adhesion work, and interfacial energies are systematically analyzed. The results demonstrate that the stability and interfacial bonding strength of the Ag(111)/SnO2(110)‐O interface are high, exhibiting metallic properties and strong conductivity. Moreover, at an interface spacing of d0 = 2.4 Å, the interface stability is optimal. The redistribution of charge at the interface induces significant changes in the local atomic density of states, particularly noticeable in the Ag and O atoms. Additionally, the Ag/SnO2 interface is predominantly bonded through ionic interactions, contributing to its robust bonding.

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In situ formation and doping of Ag/SnO 2 electrical contact materials

Cited by 35 publications

References 20 publications

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Fabrication and Arc Erosion Behavior of Ag-SnO2-ZnO Electrical Contact Materials

Adhesion, Stability and Electronic Properties of Ag/SnO₂ Interface from First‐Principles Calculation

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In situ formation and doping of Ag/SnO 2 electrical contact materials

Cited by 35 publications

References 20 publications

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Zr-doped SnO2 thin films synthesized by spray pyrolysis technique for barrier layers in solar cells

Fabrication and Arc Erosion Behavior of Ag-SnO2-ZnO Electrical Contact Materials

Adhesion, Stability and Electronic Properties of Ag/SnO2 Interface from First‐Principles Calculation

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Adhesion, Stability and Electronic Properties of Ag/SnO₂ Interface from First‐Principles Calculation