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Flash Infrared Annealing for Perovskite Solar Cell Processing
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One-Year stable perovskite solar cells by 2D/3D interface engineering.

G Grancini1, C Roldán-Carmona1, I Zimmermann1

  • 1Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, Sion CH-1951, Switzerland.

Nature Communications
|June 2, 2017
PubMed
Summary
This summary is machine-generated.

Engineered perovskite solar cells achieve one-year operational stability by creating a 2D/3D perovskite junction. This breakthrough enables stable, low-cost perovskite solar cell commercialization.

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Area of Science:

  • Materials Science
  • Renewable Energy
  • Photovoltaics

Background:

  • Perovskite solar cells exhibit high power conversion efficiencies exceeding 22%.
  • Current perovskite solar cells suffer from poor operational stability, hindering market adoption.
  • Existing solutions offer incremental improvements but fall short of market requirements.

Purpose of the Study:

  • To develop a stable perovskite solar cell architecture for commercial viability.
  • To engineer a 2D/3D perovskite junction for enhanced device longevity.
  • To demonstrate the scalability and long-term performance of the proposed technology.

Main Methods:

  • Fabrication of a 2D/3D (HOOC(CH2)4NH3)2PbI4/CH3NH3PbI3 perovskite junction.
  • Development of a gradually-organized multi-dimensional interface.
  • Construction of carbon-based and standard mesoporous solar cell architectures.
  • Fabrication of large-area (10 × 10 cm2) printable solar modules.

Main Results:

  • Achieved one-year operational stability for perovskite devices.
  • Reached 12.9% efficiency in carbon-based and 14.6% in mesoporous solar cells.
  • Demonstrated 11.2% efficiency in large-scale modules stable for over 10,000 hours with no performance loss.
  • Confirmed zero performance loss under controlled standard conditions.

Conclusions:

  • The engineered 2D/3D perovskite junction provides exceptional long-term stability.
  • The developed technology is suitable for industrial-scale, low-cost manufacturing.
  • This stable and cost-effective architecture paves the way for the commercialization of perovskite solar cells.