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Title: Antisolvent‐Mediated Air Quench for High‐Efficiency Air‐Processed Carbon‐Based Planar Perovskite Solar Cells

Journal Article · · Solar RRL
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  1. School for Engineering of Matter, Transport, and Energy Arizona State University Tempe AZ 85282 USA
  2. School of Electrical, Computer, and Energy Engineering Arizona State University Tempe AZ 85282 USA
  3. National Renewable Energy Laboratory Golden CO 80401 USA
  4. National Renewable Energy Laboratory Golden CO 80401 USA, Renewable and Sustainable Energy Institute University of Colorado Boulder Boulder CO 80309 USA, Department of Physics University of Colorado Boulder Boulder CO 80309 USA

Perovskite solar cells (PSCs) have emerged as a leading low‐cost photovoltaic technology, achieving power conversion efficiencies (PCEs) of up to 26.1%. However, their commercialization is hindered by stability issues and the need for controlled processing environments. Carbon‐electrode‐based PSCs (C‐PSCs) offer enhanced stability and cost‐effectiveness compared to traditional metal‐electrode PSCs, i.e., Au and Ag. However, processing challenges persist, particularly in air conditions where moisture sensitivity poses a significant hurdle. Herein, a novel air processing technique is presented for planar C‐PSCs that incorporates antisolvent vapors, such as chlorobenzene, into a controlled air‐quenching process. This method effectively mitigates moisture‐induced instability, resulting in champion PCEs exceeding 20% and robust stability under ambient conditions. The approach retains 80% of initial efficiency after 30 h of operation at maximum power point without encapsulation. This antisolvent‐mediated air‐quenching technique represents a significant advancement in the scalable production of C‐PSCs, paving the way for future large‐scale deployment.

Sponsoring Organization:
USDOE
Grant/Contract Number:
NONE; EE0009833
OSTI ID:
2449616
Journal Information:
Solar RRL, Journal Name: Solar RRL; ISSN 2367-198X
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
Germany
Language:
English

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