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Creators/Authors contains: "Gu, Xiaoyu"

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  1. This study compares Spiro-OMeTAD, CuSCN, and PTAA as hole transport layers in carbon-based perovskite solar cells. Spiro-OMeTAD showed best efficiency, CuSCN better stability, while PTAA underperformed, highlighting a performance-stability trade-off. 
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    Free, publicly-accessible full text available April 22, 2026
  2. Free, publicly-accessible full text available March 1, 2026
  3. 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. 
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