Antisolvent‐Free Dual‐Anion Regulation for High‐Efficient Sn‐Pb and All‐perovskite Tandem Solar Cells DOI
Chen Zhang, Zhelu Hu,

Jinpei Wang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Mixed tin‐lead (Sn‐Pb) perovskites are integral to all‐perovskite tandem solar cells (TSCs), offering significant potential surpass the theoretical efficiency limits of single‐junction cells. However, rapid crystallization Sn‐Pb perovskite thin films and propensity Sn 2+ oxidize into 4+ remain critical challenges, hindering device performance stability. Herein, it is demonstrated that a multifunctional dual‐anion synergistic regulation strategy fabricate high‐quality MA‐free Cs 0.1 FA 0.9 Pb 0.5 I 3 with superior morphology crystallinity via simplified antisolvent‐free spin‐coating process. Acetate anions (Ac − ) derived from formamidinium acetate (FAAc) effectively regulate kinetics mitigate oxidation intermediate phase formation anion exchange Simultaneously, combination Ac thiocyanate (SCN guanidinium (GuaSCN) promotes larger crystal grain growth stabilizes strong coordination interactions. The minimizes boundaries, suppresses non‐radiative recombination, optimizes energy level alignment at interfaces. As result, champion cell (PSC) achieves an impressive power conversion (PCE) 23.26%, setting new benchmark for PSCs fabricated without antisolvent. While TSCs reach 28.07% remarkable operational stability, retaining 81% initial after 600 h under maximum point tracking.

Язык: Английский

Recent Advances in Interfacial Engineering for High-Efficiency Perovskite Photovoltaics DOI Creative Commons
Zhijie Wang, Cheng Gong, Cong Zhang

и другие.

DeCarbon, Год журнала: 2025, Номер unknown, С. 100107 - 100107

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Synergistic Treatments of Bulk and Buried Surface in Tin‐Lead Binary Perovskite for Efficient Near‐Infrared Photodetectors DOI Open Access
Yi Wu, Shenghong Li, Jahangeer Ahmed

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 16, 2025

Abstract Tin‐lead binary perovskites, with their low bandgap and high absorption coefficient, hold great potential for application in near‐infrared (NIR) photodetectors. However, uncontrolled crystallization a defect density at the interface, particularly buried significantly hinder performance enhancement. To address this challenge, work incorporated quaternary ammonium salt tetrabutylammonium iodide (TBAI) into precursor solution. TBAPbI 3 formation energy accumulates rapidly bottom templates growth of 3D perovskite films, effectively reduces bulk density. Furthermore, also passivates FA + vacancy defect. These synergistic treatments passivate both surface defects varying nature, thereby limiting ingress oxygen film reducing oxidation Sn 2+ . The resulting photodetectors exhibited outstanding performance, including responsivity (0.53 A W −1 860 nm), an excellent detectivity (4.6 × 10 12 Jones), ultrafast response speed (93.2 ns), as well enhanced environmental stability. Leveraging its exceptional photoelectric flexible NIR photodetector is integrated wearable reflective oximetry detection system, achieving accurate non‐invasive assessment heart rate blood saturation. results highlight promising tin‐lead perovskites health monitoring applications.

Язык: Английский

Процитировано

0
Simplified surface defects of Sn-Pb perovskite for efficient all-perovskite tandem solar cells DOI
Yongxin Zhu, Ciyu Ge, Qi Xu

и другие.

Nano Energy, Год журнала: 2025, Номер unknown, С. 110927 - 110927

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Spectral Splitting Solar Cells Combining Planar Heterojunction Wide-Bandgap and Inverted Narrow-Bandgap Perovskite Architectures DOI
Kei ITO, Ching-Chang Lin,

Kazuteru Nonomura

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 20, 2025

Язык: Английский

Процитировано

0
Optimization of crystallization dynamics in wide-bandgap bromine–iodine perovskite films for high-performance perovskite–organic tandem solar cells DOI

Zonglong Song,

Jiangfeng Wang,

Yuxin Bao

и другие.

Energy & Environmental Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

By introducing moroxydine hydrochloride to optimize the crystallization of wide-bandgap perovskites, phase separation halides was suppressed, achieving a PCE 18.76%. This technology significantly improved photothermal stability.

Язык: Английский

Процитировано

0
Antisolvent‐Free Dual‐Anion Regulation for High‐Efficient Sn‐Pb and All‐perovskite Tandem Solar Cells DOI
Chen Zhang, Zhelu Hu,

Jinpei Wang

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 23, 2025

Abstract Mixed tin‐lead (Sn‐Pb) perovskites are integral to all‐perovskite tandem solar cells (TSCs), offering significant potential surpass the theoretical efficiency limits of single‐junction cells. However, rapid crystallization Sn‐Pb perovskite thin films and propensity Sn 2+ oxidize into 4+ remain critical challenges, hindering device performance stability. Herein, it is demonstrated that a multifunctional dual‐anion synergistic regulation strategy fabricate high‐quality MA‐free Cs 0.1 FA 0.9 Pb 0.5 I 3 with superior morphology crystallinity via simplified antisolvent‐free spin‐coating process. Acetate anions (Ac − ) derived from formamidinium acetate (FAAc) effectively regulate kinetics mitigate oxidation intermediate phase formation anion exchange Simultaneously, combination Ac thiocyanate (SCN guanidinium (GuaSCN) promotes larger crystal grain growth stabilizes strong coordination interactions. The minimizes boundaries, suppresses non‐radiative recombination, optimizes energy level alignment at interfaces. As result, champion cell (PSC) achieves an impressive power conversion (PCE) 23.26%, setting new benchmark for PSCs fabricated without antisolvent. While TSCs reach 28.07% remarkable operational stability, retaining 81% initial after 600 h under maximum point tracking.

Язык: Английский

Процитировано

0