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<p>Considering its excellent film-forming properties and biodegradability, chitosan was expected to become one of the new raw materials for green electronic components. However, pure chitosan film was difficult to achieve satisfactory application in the field of ultra-flexible electronic devices due to its insufficient flexibility and poor high-temperature resistance. In this study, citric acid and glycerol were used to modify chitosan to enhance its overall performance. Based on this, a conductive film composed of silver nanowires (AgNWs) embedded into citric acid cross-linked chitosan was fabricated via a transfer method. During the preparation process, the optoelectronic properties of the composite film were improved by the method of heat treatment. The results showed that the composite film exhibited low surface roughness ( RMS = 5.48 ± 1.16), excellent transmittance (the sheet resistance is 15 Ω/sq and the transmittance at 550&#xa0;nm is 73.7%), good thermal stability (no observable alteration in sheet resistivity and appearance features after being maintained at 180 <sup>0</sup>C for 30&#xa0;min), and outstanding flexibility. When tested as a heater, the film displayed favorable heating performance. The composite film prepared in this study showed the promising development value in the field of flexible electronic devices.</p>

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Preparation and properties of novel silver nanowire-based flexible transparent conductive film

  • 期刊论文

  • 发表日期：

    2026年5月1日

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  • Xiaoying Xu,
  • Ming Liu,
  • Hang Zhou,
  • Yangfan Guo,
  • Xuanxu Pei,
  • Pengcheng Li,
  • Shihui Yu

摘要

Considering its excellent film-forming properties and biodegradability, chitosan was expected to become one of the new raw materials for green electronic components. However, pure chitosan film was difficult to achieve satisfactory application in the field of ultra-flexible electronic devices due to its insufficient flexibility and poor high-temperature resistance. In this study, citric acid and glycerol were used to modify chitosan to enhance its overall performance. Based on this, a conductive film composed of silver nanowires (AgNWs) embedded into citric acid cross-linked chitosan was fabricated via a transfer method. During the preparation process, the optoelectronic properties of the composite film were improved by the method of heat treatment. The results showed that the composite film exhibited low surface roughness ( RMS = 5.48 ± 1.16), excellent transmittance (the sheet resistance is 15 Ω/sq and the transmittance at 550 nm is 73.7%), good thermal stability (no observable alteration in sheet resistivity and appearance features after being maintained at 180 0C for 30 min), and outstanding flexibility. When tested as a heater, the film displayed favorable heating performance. The composite film prepared in this study showed the promising development value in the field of flexible electronic devices.