Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 8, 2024
Abstract The buried interface of wide‐bandgap (WBG) perovskite solar cells (PSCs) is crucial for effective charge transfer and device stability. In this study, 2,4‐diamino‐6‐fluoropyrimidine (DMFP) incorporated into the layer to form a molecular bridge at between MeO‐4PACZ. DMFP treatment reduces agglomeration MeO‐4PACZ, resulting in denser more uniform self‐assembled monolayers (SAMs) by inducing favorable crystal orientation. addition, strong chemical interaction films significantly defect state density promotes growth high‐quality grains. Moreover, effectively modulates energy levels perovskites, facilitating interfacial extraction. As result, WBG PSCs treated with demonstrate remarkable power conversion efficiency (PCE) 21.96%, an enhanced short‐circuit current (J SC ) 21.60 mA cm −2 high open‐circuit voltage (V OC 1.23 V. prepared retain 95.5% their initial after 1500 h aging relative humidity ≈30% air, indicating excellent This study contributes deeper understanding proposes collaborative approach developing high‐performance PSCs.
Language: Английский