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Related Experiment Video

Updated: Jun 3, 2025

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
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Computational Study of Chalcogenide-Based Perovskite Solar Cell Using SCAPS-1D Numerical Simulator.

Edson L Meyer1, Sinikiwe A Mvokwe1,2, Opeoluwa O Oyedeji2

  • 1Fort Hare Institute of Technology, University of Fort Hare, Private Bag X1314, Alice 5700, Eastern Cape, South Africa.

Materials (Basel, Switzerland)
|January 11, 2025
PubMed
Summary

This study optimizes chalcogenide perovskite solar cells (PSCs) using PEDOT:PSS as a hole transport layer, achieving 18.50% power conversion efficiency. This research offers a stable, eco-friendly alternative to lead-based solar cells.

Keywords:
hole transport layer (HTL)perovskite solar cells (PSCs)photovoltaic technologiespower conversion efficiency (PCE)

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Perovskite solar cells (PSCs) show promise for next-generation photovoltaics due to excellent optoelectronic properties.
  • Commercialization of lead-based PSCs is hindered by instability and high production costs.

Purpose of the Study:

  • To optimize the performance and stability of chalcogenide-based PSCs.
  • To evaluate various hole transport layers (HTLs) for improved device efficiency.

Main Methods:

  • Optimized device configuration FTO/CdS/BaZrS3/HTL/Ir by varying layer thicknesses, defect densities, energy bands, and work function.
  • Assessed four HTLs: Cu2O, CuSCN, P3HT, and PEDOT:PSS.

Main Results:

  • PEDOT:PSS as HTL achieved a maximum power conversion efficiency (PCE) of 18.50%.
  • Other HTLs showed lower PCEs: P3HT (5.81%), CuSCN (10.73%), and Cu2O (9.80%).
  • The best device exhibited a short-circuit current density (Jsc) of 23.46 mA cm⁻², open-circuit voltage (Voc) of 8.86 V, and fill factor (FF) of 8.90%.

Conclusions:

  • PEDOT:PSS demonstrated superior performance due to better band alignment and reduced charge recombination.
  • Chalcogenide-based PSCs offer a viable, stable, and eco-friendly alternative to lead-based solar cells.
  • Optimization strategies pave the way for scalable production of efficient and environmentally benign solar technologies.