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<p>The development of novel electrodes integrating flexibility, high transparency, and superior electrical conductivity has emerged as a critical research focus in the field of flexible optoelectronics. Herein, we present an innovative polymer–metal–polymer (PMP) composite architecture for flexible transparent conductive electrodes, fabricated through a precisely controlled layer-by-layer deposition process. The optimized PMP electrode demonstrates remarkable optoelectronic performance, exhibiting an average visible light transmittance of 84% combined with a low sheet resistance of 10.66 Ω/sq. Particularly noteworthy is its exceptional mechanical durability, maintaining only a 10% resistance increase after 22,000 bending cycles at an extreme curvature radius of 3&#xa0;mm. When implemented as anodes in organic light emitting devices, the PMP-based devices achieved outstanding performance metrics, including a maximum luminance of 5245&#xa0;cd/m<sup>2</sup> and a peak external quantum efficiency of 1.68%. These findings not only validate the PMP architecture as a promising alternative to conventional indium-based transparent electrodes but also suggest its potential for enabling next-generation flexible optoelectronic systems requiring simultaneous optical transparency, mechanical compliance, and efficient charge transport capabilities.</p>

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Polymer–Metal–Polymer Flexible Transparent Conductive Electrodes for Organic Light Emitting Devices

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • Haoran Quan,
  • Chuang Liu,
  • Yangliu Shi,
  • Yue Han,
  • Heyang Zhang,
  • Chen Chen,
  • He Dong,
  • Yuan Chai,
  • Jin Wang,
  • Xiaotian Yang

摘要

The development of novel electrodes integrating flexibility, high transparency, and superior electrical conductivity has emerged as a critical research focus in the field of flexible optoelectronics. Herein, we present an innovative polymer–metal–polymer (PMP) composite architecture for flexible transparent conductive electrodes, fabricated through a precisely controlled layer-by-layer deposition process. The optimized PMP electrode demonstrates remarkable optoelectronic performance, exhibiting an average visible light transmittance of 84% combined with a low sheet resistance of 10.66 Ω/sq. Particularly noteworthy is its exceptional mechanical durability, maintaining only a 10% resistance increase after 22,000 bending cycles at an extreme curvature radius of 3 mm. When implemented as anodes in organic light emitting devices, the PMP-based devices achieved outstanding performance metrics, including a maximum luminance of 5245 cd/m2 and a peak external quantum efficiency of 1.68%. These findings not only validate the PMP architecture as a promising alternative to conventional indium-based transparent electrodes but also suggest its potential for enabling next-generation flexible optoelectronic systems requiring simultaneous optical transparency, mechanical compliance, and efficient charge transport capabilities.