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<p>Silver nanowire transparent conductive films (AgNWs-TCF) are regarded as an alternative to indium tin oxide (ITO) transparent conductive films due to their excellent optoelectronic properties and flexibility. However, their high junction resistance and poor electrical stability have limited their commercial use. This paper employs an Ag soft-solder AgNW conductive network produced from a NaCl solution to lower the resistance at the AgNW-TCF junction. Simultaneously, the conductive network lines of the AgNWs are modified using the hydrolysis reaction of a LaF<sub>3</sub> solution. This creates an AgNWs conductive network with tight contact at the line–line junction and a core (AgNWs)-shell (La<sub>2</sub>O<sub>3</sub>) structure, forming AgNWs@La<sub>2</sub>O<sub>3</sub>-TCF. This transparent conductive film not only exhibits low resistance (12&#xa0;Ω/sq) and high light transmittance (86.4% @ 550&#xa0;nm) but also demonstrates excellent stability. For instance, after 28&#xa0;days in air, the resistance increased by only 12%, and with a bending radius of 1&#xa0;mm, the resistance increase was just 7.96%. Following the surface coating with a water layer, the device exhibited a stable current output of 0.06 A under a constant driving voltage of 4&#xa0;V over extended durations. AC electroluminescence (ACEL) devices fabricated with AgNWs@La<sub>2</sub>O<sub>3</sub>-TCF as transparent electrodes achieve a luminous intensity of 109.3&#xa0;cd/m<sup>2</sup> at 4000&#xa0;Hz and 220&#xa0;V. Under conditions such as bending, cutting, and folding, the ACEL maintains stable luminous performance. Additionally, the ACEL can produce patterned and ultra-large-area luminous emission, making it suitable for various lighting fixtures and demonstrating significant commercial potential.</p>

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Preparation of low-resistance and ultra-stable AgNWs@La2O3-TCF and its application in AC electroluminescence devices

  • 期刊论文

  • 发表日期：

    2026年3月25日

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  • Zhenghang Lü,
  • Yuehui Hu,
  • Huiwen Liu,
  • Zhihao Sun,
  • Yichuan Chen,
  • Xinyue Xu,
  • Jiashun Chen,
  • Zhiqiang Hu,
  • Shuai Zeng,
  • Hao Gao

摘要

Silver nanowire transparent conductive films (AgNWs-TCF) are regarded as an alternative to indium tin oxide (ITO) transparent conductive films due to their excellent optoelectronic properties and flexibility. However, their high junction resistance and poor electrical stability have limited their commercial use. This paper employs an Ag soft-solder AgNW conductive network produced from a NaCl solution to lower the resistance at the AgNW-TCF junction. Simultaneously, the conductive network lines of the AgNWs are modified using the hydrolysis reaction of a LaF3 solution. This creates an AgNWs conductive network with tight contact at the line–line junction and a core (AgNWs)-shell (La2O3) structure, forming AgNWs@La2O3-TCF. This transparent conductive film not only exhibits low resistance (12 Ω/sq) and high light transmittance (86.4% @ 550 nm) but also demonstrates excellent stability. For instance, after 28 days in air, the resistance increased by only 12%, and with a bending radius of 1 mm, the resistance increase was just 7.96%. Following the surface coating with a water layer, the device exhibited a stable current output of 0.06 A under a constant driving voltage of 4 V over extended durations. AC electroluminescence (ACEL) devices fabricated with AgNWs@La2O3-TCF as transparent electrodes achieve a luminous intensity of 109.3 cd/m2 at 4000 Hz and 220 V. Under conditions such as bending, cutting, and folding, the ACEL maintains stable luminous performance. Additionally, the ACEL can produce patterned and ultra-large-area luminous emission, making it suitable for various lighting fixtures and demonstrating significant commercial potential.