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Lithium-Based Upconversion Nanoparticles for High Performance Perovskite Solar Cells.

Masfer Alkahtani1,2, Anas Ali Almuqhim1, Hussam Qasem1

  • 1National Center for Renewable Energy, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia.

Nanomaterials (Basel, Switzerland)
|November 27, 2021
PubMed
Summary

Synthesized lithium-based upconversion nanoparticles (UCNPs) boost perovskite solar cell (PSC) performance. Adding these nanoparticles increased power conversion efficiency to 19% and fill factor to 82% in PSCs.

Keywords:
efficiencylithiumperovskite solar cellupconversion nanoparticles

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Nanotechnology

Background:

  • Perovskite solar cells (PSCs) are promising for renewable energy.
  • Upconversion nanoparticles (UCNPs) and lithium ions can enhance photovoltaic performance.
  • Developing efficient methods to integrate these materials into PSCs is crucial.

Purpose of the Study:

  • To develop an easy and efficient synthesis method for high-quality lithium-based upconversion nanoparticles (UCNPs).
  • To investigate the impact of incorporating these synthesized YLiF4:Yb,Er nanoparticles into PSCs.
  • To evaluate the enhancement in photovoltaic performance metrics.

Main Methods:

  • Synthesized high-quality lithium-based YLiF4:Yb,Er upconversion nanoparticles.
  • Incorporated the synthesized UCNPs into the mesoporous layer of perovskite solar cells.
  • Characterized the photovoltaic performance of doped and undoped PSCs.

Main Results:

  • The synthesized YLiF4:Yb,Er nanoparticles were successfully incorporated into PSCs.
  • PSCs with UCNPs achieved a higher power conversion efficiency (PCE) of 19% compared to undoped PSCs (~16.5%).
  • An improved fill factor (FF) of 82% was observed in UCNP-doped PSCs, versus 71% in undoped cells, along with additional photocurrent.

Conclusions:

  • The developed method provides an easy and efficient route to high-quality lithium-based UCNPs.
  • Incorporating these UCNPs significantly enhances the photovoltaic performance of PSCs.
  • This research opens new avenues for developing more efficient PSCs for renewable energy applications.