4.7 Article

Highly transparent and flexible circuits through patterning silver nanowires into microfluidic channels

Journal

CHEMICAL COMMUNICATIONS
Volume 54, Issue 39, Pages 4923-4926

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc01438h

Keywords

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Funding

  1. National Natural Science Foundation of China [21505013]
  2. Liaoning BaiQian Wan Talents Program [[2015]6]
  3. Natural Science Foundation of Liaoning Province, China [2015020660]

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The development of flexible and transparent devices requires completely transparent and flexible circuits (TFCs). To overcome the disadvantages of the previously reported TFCs that are partially transparent, lacking pattern control, or labor consuming, we achieve true TFCs via a facile process with precise pattern control, exhibiting concurrent high transparency, conductivity, flexibility, stretchability, and robustness. A highly transparent and flexible conductive film is first made through spin coating silver nanowires (AgNWs) onto polydimethylsiloxane (PDMS), and demonstrates simultaneous high transparency (90.86%) and low sheet resistance (3.22 Omega sq(-1)). Taking advantage of microfluidic technology, circuits with ultraprecise and complex patterns from the microscale to milliscale are obtained through spin coating of AgNWs into microfluidic channels on PDMS. Without elaborate processing, this method may be suitable for mass production, which would contribute enormously to potential applications in wearable medical equipment and transparent electronic devices.

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