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Air-Processable Perovskite Solar Cells by Hexamine Molecule Phase Stabilization.

Nabilah Alias1, Akrajas Ali Umar1, Siti Naqiyah Sadikin1

  • 1Institute of Microengineering and Nanoelectronics, Universiti Kebangsaan Malaysia, UKM, 43600 Bangi, Selangor, Malaysia.

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Summary

Hexamine molecules enhance perovskite solar cell stability and performance. This breakthrough enables durable, air-processable solar cells, paving the way for industrialization.

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Perovskite solar cells offer low-cost, high-efficiency energy generation.
  • Poor ambient stability hinders commercialization of perovskite solar cells.

Purpose of the Study:

  • To improve the stability and performance of perovskite solar cells.
  • To enable air-processable perovskite solar cells through enhanced stability.

Main Methods:

  • Incorporation of hexamine molecules into the perovskite lattice.
  • Fabrication and testing of unencapsulated perovskite solar cells.
  • Assessment of power conversion efficiency and ambient stability under controlled conditions.

Main Results:

  • Perovskite solar cells with hexamine achieved 16.83% power conversion efficiency.
  • Unencapsulated cells demonstrated over 1500 hours of stability in 65-90% relative humidity.
  • Hexamine introduction enhanced photoactive phase stability.

Conclusions:

  • Hexamine molecules significantly improve perovskite solar cell stability and performance.
  • The developed cells are air-processable and suitable for real-world applications.
  • This research advances perovskite solar cell technology towards industrial viability.