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Area of Science:

  • Optoelectronics
  • Materials Science
  • Nanotechnology

Background:

  • Plasmonic energy recycling is crucial for improving optoelectronic device efficiency.
  • Current systems lack integrated pathways to convert near-field dissipation into optical output.
  • Parasitic plasmonic loss limits overall system performance.

Purpose of the Study:

  • To establish a plasmon-to-photon relay for efficient energy conversion.
  • To bridge the gap between plasmonic loss and usable photon flux.
  • To enhance the performance of plasmon-mediated optoelectronic systems.

Main Methods:

  • Tailoring multiple-resonance thermally activated delayed fluorescence (MR-TADF) mediators (H-BN to TPS-BN).
  • Strengthening near-field capture using plasmon-induced resonance energy transfer (PIRET).
  • Suppressing intermolecular exciton loss to maintain high radiative efficiency.
  • Integrating the system into silver nanowire-based flexible organic solar cells (FOSCs).

Main Results:

  • The plasmon-to-photon relay effectively intercepted multimodal optical losses.
  • Interfacial plasmonic dissipation and broadband photon escape were redirected into radiative flux.
  • A champion flexible organic solar cell achieved a record efficiency of 19.75%.
  • Molecular spatial configuration was identified as a key factor in regulating energy flow.

Conclusions:

  • The developed plasmon-to-photon relay successfully converts non-radiative plasmonic energy into usable optical output.
  • This approach significantly enhances the efficiency of flexible organic solar cells.
  • Molecular design is critical for controlling plasmon-mediated energy transfer and spectral distribution in optoelectronics.