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Optimization of Cu/Sn Alloy Sputtering Process Based on Orthogonal Experimental Design Method.

Shuangjie Liu1, Xingwang Li1, Yongping Hao1

  • 1School of Equipment Engineering, Shenyang Ligong University, Shenyang 110159, China.

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Summary
This summary is machine-generated.

This study optimized magnetron sputtering parameters to create a conductive copper-tin alloy layer for polypyrrole supercapacitors. Optimal settings enhance film conductivity and uniformity, improving supercapacitor performance.

Keywords:
copper–tin alloy filmelectrical conductivitymagnetron sputteringorthogonal experimental designuniformity

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Surface Engineering

Background:

  • Supercapacitor performance relies heavily on the conductivity of polypyrrole electrode materials.
  • Enhancing polypyrrole conductivity requires cost-effective and efficient conductive layers.
  • Magnetron sputtering offers a method for fabricating thin films with tunable properties.

Purpose of the Study:

  • To optimize magnetron sputtering parameters for a copper-tin alloy conductive layer.
  • To investigate the impact of working pressure, sputtering time, and power on film characteristics.
  • To improve the conductivity and uniformity of the copper-tin alloy for polypyrrole supercapacitors.

Main Methods:

  • Fabrication of copper-tin alloy films using magnetron sputtering.
  • Application of orthogonal experimental design to study parameter effects.
  • Analysis of film properties including conductivity, uniformity, deposition rate, target current, and working voltage.
  • Characterization using FT-IR, XRD, and SEM.

Main Results:

  • Optimal parameters identified: 0.065 Pa working pressure, 20 min sputtering time, 70 W sputtering power.
  • Sputtering time significantly impacts film uniformity; sputtering power has minimal effect.
  • Working pressure is the primary factor influencing deposition rate and working voltage.
  • Sputtering power predominantly affects target current.

Conclusions:

  • Magnetron sputtering process parameters critically influence copper-tin alloy film properties.
  • Optimized parameters yield a highly conductive and uniform film suitable for supercapacitor electrodes.
  • The study provides a reliable method for fabricating enhanced conductive layers for energy storage devices.