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Silver Nanowires from Sonication-Induced Scission.

Yuehui Wang1,2, Xing Yang3, Dexi Du4

  • 1School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, China. wangzsedu@126.com.

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|January 10, 2019
PubMed
Summary

Researchers modified silver nanowires (AgNWs) using sonication to create smaller sizes for flexible electronics. AgNW length decreases with increased sonication time/power and lower concentration, reaching a minimum fragmentation length.

Keywords:
fragmentationsilver nanowiressonication-induced scissionultrasound power

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Electronics

Background:

  • Silver nanowires (AgNWs) are crucial for flexible electronics, offering high conductivity and reflectivity.
  • AgNW size significantly impacts their optical and electrical performance in applications like transparent conductors.

Purpose of the Study:

  • To investigate the sonication-induced scission method for reducing silver nanowire size.
  • To establish the relationship between AgNW size and sonication parameters (time, power, concentration).

Main Methods:

  • Achieved initial AgNWs (70 nm diameter, 12.5 μm length) via polyol solvothermal synthesis.
  • Employed sonication-induced scission to fragment AgNWs into smaller dimensions.
  • Analyzed the correlation between sonication parameters and resultant AgNW length.

Main Results:

  • AgNW length was reduced by increasing sonication time and power.
  • Lower AgNW concentration led to shorter nanowire lengths.
  • A critical limiting length was identified, below which AgNW fragmentation ceased.

Conclusions:

  • Sonication-induced scission is an effective method for tailoring AgNW dimensions.
  • Understanding the mechanics of scission is key to controlling AgNW size for optimized flexible electronic applications.
  • The study provides insights into the fragmentation limits of AgNWs under sonication.