Solar energy paper index
A Universal Solid‐Phase Reaction Strategy for Lead Iodide Management in Wide‐Bandgap Perovskites Across Multiple Fabrication Methods
One-line summary
A solar energy research paper on A Universal Solid‐Phase Reaction Strategy for Lead Iodide Management in Wide‐Bandgap Perovskites Across Multiple Fabrication Methods.
Engineering notes
Engineering notes will be added by the Power for Solar editorial team.
Chinese explanation / 中文解读
中文解读待补充：本站会优先为光伏效率、钙钛矿太阳能电池、储能技术、太阳能热利用、BIPV、并网技术等高价值论文补充中文说明。
Original abstract
ABSTRACT In wide‐bandgap (WBG) perovskite solar cells (PSCs), residual lead iodide (PbI 2 ) is a dual‐edged sword: while bulk retention stabilizes the α‐phase and suppresses defects, surface accumulation hinders charge transport and accelerates degradation under environmental stress. Herein, a solid‐phase reaction modification (SRM) strategy using L‐cysteine (L‐Cys) capping layer is reported to precisely regulate PbI 2 distribution. Leveraging its highly polar functional groups, L‐Cys effectively eliminates surface PbI 2 residues, mitigates interfacial defects, and releases residual lattice strain. These synergistic effects enable inverted PSCs (1.68 eV) fabricated through one‐step (spin coating) and hybrid two‐step (evaporation‐spin coating) fabrication methods to achieve a champion power conversion efficiency (PCE) of 23.27% and 19.63%. Furthermore, four‐terminal (4T) WBG PSC/copper indium gallium selenide (CIGS) tandem devices reach an impressive PCE of 28.14%. The SRM‐treated perovskite films exhibit exceptional robustness, showing no degradation under thermal aging (85°C, 24 h) or high humidity (85% RH, 72 h). Unencapsulated devices maintain 82.1% of their initial efficiency after 1000 h of ambient storage.
Links and sources
Need this topic turned into a technical roadmap?
Power for Solar can prepare a custom solar energy literature review, simulation code map, dataset map, and B2B photovoltaic technology assessment.
Request B2B research
Comments