A novel radical-reaction interruption strategy for enhancing the light stability of perovskite solar cells

Tuo, Binyang; Wang, Ziyu; Ren, Ziqiu; Zhang, Hanwen; Lu, Xinqi; Zhang, Yiqiang; Zang, Shuangquan; Song, Yanlin

doi:10.1039/d4ee00902a

Energy Environ. Sci.

2024

DOI: 10.1039/d4ee00902a

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A novel radical-reaction interruption strategy for enhancing the light stability of perovskite solar cells

Binyang Tuo,

Ziyu Wang,

Ziqiu Ren

et al.

Abstract: The stability issues of perovskite solar cells (PSCs), especially illumination stability, have become a bottleneck that limits its further development, which needs urgent attention. Herein, we present a novel strategy...

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Inhibited superoxide‐induced halide oxidation with a bioactive factor for stabilized inorganic perovskite solar cells

Duan,

Liu

et al. 2024

SusMat

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Active oxygen highly affects the efficiency and stability of perovskite solar cells (PSCs) owing to the capacity to either passivate defects or decompose perovskite lattice. To better understand the in‐depth interaction, we demonstrate for the first time that photooxidation mechanism in all‐inorganic perovskite film dominates the phase deterioration kinetics by forming superoxide species in the presence of light and oxygen, which is significantly different from that in organic‒inorganic hybrid and even tin‐based perovskites. In all‐inorganic perovskites, the superoxide species prefer to oxidize longer and weaker Pb‒I bond to PbO and I2, leaving the much stable CsPbBr3 phase. From this chemical proof‐of‐concept, we employ an organic bioactive factor, Tanshinone IIA, as a superoxide sweeper to enhance the environmental tolerance of inorganic perovskite, serving as a “skincare” agent for anti‐aging organisms. Combined with another key point on healing defective lattice, the best carbon‐based all‐inorganic CsPbI2Br solar cell delivers an efficiency as high as 15.12% and superior stability against oxygen, light, humidity, and heat attacks. This method is also applicable to enhance the efficiency of p‒i‒n inverted (Cs0.05MA0.05FA0.9)Pb(I0.93Br0.07)3 cell to 23.46%. These findings not only help us understand the perovskite decomposition mechanisms in depth but also provide a potential strategy for advanced PSC platforms.

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Inhibited superoxide‐induced halide oxidation with a bioactive factor for stabilized inorganic perovskite solar cells

Duan,

Liu

et al. 2024

SusMat

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Ionic liquid gel microspheres as multifunctional bi-component additives for the crystallinity manipulation and defect passivation in all-air-processed perovskite solar cells

Zeng,

Liu,

Wang

et al. 2024

Chemical Engineering Journal

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Effective n-type de-doping of perovskite surface via defect passivation and improved film crystallization for high-efficiency inorganic solar cells

Li,

Duan,

Liu

et al. 2024

J. Mater. Chem. A

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A novel radical-reaction interruption strategy for enhancing the light stability of perovskite solar cells

Abstract: The stability issues of perovskite solar cells (PSCs), especially illumination stability, have become a bottleneck that limits its further development, which needs urgent attention. Herein, we present a novel strategy...

Cited by 3 publications

References 43 publications

Inhibited superoxide‐induced halide oxidation with a bioactive factor for stabilized inorganic perovskite solar cells

Inhibited superoxide‐induced halide oxidation with a bioactive factor for stabilized inorganic perovskite solar cells

Ionic liquid gel microspheres as multifunctional bi-component additives for the crystallinity manipulation and defect passivation in all-air-processed perovskite solar cells

Effective n-type de-doping of perovskite surface via defect passivation and improved film crystallization for high-efficiency inorganic solar cells

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