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Au and Pt Diffusion in Electrodeposited Amorphous Sb2Te3 Thin Films

Journal Article · · Physica Status Solidi B. Basic Solid State Physics
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  1. Ohio Univ., Athens, OH (United States)
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
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Amorphous Sb2Te3 thin films are synthesized using electrodeposition in different thicknesses to explore their solid electrolytic nature with respect to some noble metals. Au and Pt are used as the substrate materials and thermally diffused into the Sb2Te3 films under passivated and nonpassivated conditions. Rutherford backscattering spectrometry is used to study the Au and Pt diffusion into the films as a function of depth. It is found that Au diffuses into the Sb2Te3 thin films even at room temperature. In contrast, there is no observable diffusion of Pt at room temperature. At a higher temperature (i.e., 200 °C), both Au and Pt diffuse into the Sb2Te3 thin films and Au diffusion is more significant than Pt. Overall, the findings suggest that amorphous Sb2Te3 can be used as a good solid electrolyte to permit the diffusion of some noble metals such as Au and Pt.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE; National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1869682
Journal Information:
Physica Status Solidi B. Basic Solid State Physics, Journal Name: Physica Status Solidi B. Basic Solid State Physics Journal Issue: 9 Vol. 258; ISSN 0370-1972
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
Rutherford backscattering spectrometry
antimony telluride
conductive-bridge random access memory
electrodeposition
solid electrolytes