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<p>The integration of V₂C MXene micro-nano layers into copper oxidation–reduction electrolyte led to notable enhancements at recombination and charge transfer inhibition of dye-sensitized solar cells. Instrument, constructed with 0.5 wt% optimal loading V₂C MXene at copper complex redox electrolyte, achieved peak power conversion efficiency of 9.92% (1 sun) illumination. The improvement in efficiency were ascribed MXene’s superior electrical conductivity their efficient passivation, which together promote charge transfer and dye regeneration at DSSCs. The outcomes highlight transformative capacity of MXene to synergistically diminish recombination losses and enhance ionic conductivity at copper complex. X-ray diffraction research demonstrated the interaction of Cu complexes at MXenes also improves layered structure of MXenes. Mechanistic investigations using intensity-modulated spectroscopies and electrochemical impedance spectroscopy demonstrate that MXene-modified electrolyte by 13.87% of recombination reduction and prolongs lifetimes. With less than 10% sunlight, devices achieves power conversion efficiency of 14.36% (low light), highlighting their suitability low-light Internet-of-Things uses. These outcomes facilitate the creation of MXenes at sophisticated electrolytes to attain synergistic enhancements at performance and stability of DSSCs.</p>

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Enhancing charge transfer and low-light performance of DSSCs using V₂C MXene-integrated copper redox electrolyte

  • 期刊论文

  • 发表日期：

    2026年4月18日

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  • K. Vinukumar,
  • T. Priya,
  • G. S. Satheesh Kumar,
  • R. B. R. Prakash,
  • Sandeep Gupta,
  • B. Raja Bharathi

摘要

The integration of V₂C MXene micro-nano layers into copper oxidation–reduction electrolyte led to notable enhancements at recombination and charge transfer inhibition of dye-sensitized solar cells. Instrument, constructed with 0.5 wt% optimal loading V₂C MXene at copper complex redox electrolyte, achieved peak power conversion efficiency of 9.92% (1 sun) illumination. The improvement in efficiency were ascribed MXene’s superior electrical conductivity their efficient passivation, which together promote charge transfer and dye regeneration at DSSCs. The outcomes highlight transformative capacity of MXene to synergistically diminish recombination losses and enhance ionic conductivity at copper complex. X-ray diffraction research demonstrated the interaction of Cu complexes at MXenes also improves layered structure of MXenes. Mechanistic investigations using intensity-modulated spectroscopies and electrochemical impedance spectroscopy demonstrate that MXene-modified electrolyte by 13.87% of recombination reduction and prolongs lifetimes. With less than 10% sunlight, devices achieves power conversion efficiency of 14.36% (low light), highlighting their suitability low-light Internet-of-Things uses. These outcomes facilitate the creation of MXenes at sophisticated electrolytes to attain synergistic enhancements at performance and stability of DSSCs.