Systematic evaluation of the biotoxicity of Pb-based perovskite materials and perovskite solar cells

Zhu, Yue; Kang, Yingying; Huang, He; Zhuang, Dicai; Li, Mohan; Ling, Zihao; Peng, Ke; Zhai, Lanlan; Zou, Chao

doi:10.1039/d3ta06303h

Cited by 5 publications

(2 citation statements)

References 34 publications

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“…However, the toxicity issue of lead-based perovskites limits their further application. 25 To address this issue, researchers have begun to explore lead-free, air-stable organic−inorganic hybrid materials, 26−31 such as copper-based 32−35 and Co-based 36 chiral hybrid perovskite materials. However, there has been no systematic research on chiral hybrid transition metal material systems to date.…”

Section: Introductionmentioning

confidence: 99%

“…These materials achieve circularly polarized luminescence ,− and spin LEDs − and circularly polarized photodetection , through chirality transfer from the organic to the inorganic part, demonstrating a wider material design space and greater application potential than pure organic molecules. However, the toxicity issue of lead-based perovskites limits their further application . To address this issue, researchers have begun to explore lead-free, air-stable organic–inorganic hybrid materials, − such as copper-based − and Co-based chiral hybrid perovskite materials.…”

Section: Introductionmentioning

confidence: 99%

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Chiral Zero-Dimensional Transition Metal Halide Hybrid Perovskite with Ehanced Circular Dichroism and Magnetism

Lu,

Yang,

Zhao

et al. 2024

ACS Appl. Electron. Mater.

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Noncentrosymmetric chiral organic−inorganic hybrid perovskite materials exhibit significant potential for applications in spintronics and other optoelectronic devices. While lead halide hybrid perovskite materials have demonstrated outstanding optoelectronic and spin-charge transport properties, the exploration of nontoxic and leadfree alternatives remains highly necessary. Here, we synthesize a range of chiral hybrid halides (R/S-MBA) 2 MX 4 (MBA = methylbenzylammonium; M = Co, Mn, and Zn, X = Cl and Br) with distinctive 0D MX 4 tetrahedral structural motifs. Various optical bands exhibit significant chiroptical activity and magnetism in this series of materials. During the thin film preparation process, (MBA) 2 ZnBr 4 undergoes a phase transition from an orthorhombic structure to a monoclinic structure after being spin-coated and annealing. On the other hand, (MBA) 2 ZnCl 4 maintains its monoclinic structure throughout the process. The study contributes to the advancement of spintronics based on transition-metal hybrid systems by extending the exploration of stable and environmentally friendly metal−organic halides.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chiral Zero-Dimensional Transition Metal Halide Hybrid Perovskite with Ehanced Circular Dichroism and Magnetism

Lu,

Yang,

Zhao

et al. 2024

ACS Appl. Electron. Mater.

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Aqueous‐Phase Preparation of Core–Shell Perovskite Nanorods Encapsulated in Polydopamine with Ultrahigh Water Stability

Li,

Fan,

Luan

et al. 2024

Small Structures

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All‐inorganic perovskite CsPbBr3 (CPB) nanocrystals (NCs) are not widely applied in aqueous environments due to their readily decomposable nature. Therefore, the aqueous‐phase preparation of CPB NCs has been a considerable challenge. In this work, a feasible method is proposed for preparing aqueous‐phase core–shell CPB nanorods (NRs) encapsulated with polydopamine (PDA) by employing a multifunctional additive cesium trifluoroacetate (Cs‐TFA). Highly luminescent TFA‐CPB NRs are obtained via a chemical transformation of Cs4PbBr6 NCs in water. Subsequently, PDA constitutes a robust shell on the surface of TFA‐CPB NRs through the covalent oxidative polymerization, which effectively reduces the original dynamic properties of surface ligands, retards the decomposition of ligands and inhibits the leakage of Pb2+ ions. The results demonstrate that the fluorescence intensity of TFA‐CPB@PDA NRs maintains 49.3% of the initial intensity after 136 days. Meanwhile, the NRs exhibit low cytotoxicity, and the cell viability remains at 80% when the concentration of the NRs is 200 μg mL−1. The reliable preparation of aqueous‐phase core–shell perovskite NRs (PNRs) will facilitate their development in many fields, such as materials science, biology, medicine, and their applications in aqueous environments.

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Preparation of Cs2SnI6 perovskite thin films based on solvent engineering and their properties of photodetectors

Zhang,

Wu,

Zhong

et al. 2024

Sensors and Actuators A: Physical

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Systematic evaluation of the biotoxicity of Pb-based perovskite materials and perovskite solar cells

Abstract: Though the rapid development of perovskite solar cells (PSCs) in recent years, the poor stability and Pb toxicity make it a challenge to its commercialization. In this study, combining with...

Cited by 5 publications

References 34 publications

Chiral Zero-Dimensional Transition Metal Halide Hybrid Perovskite with Ehanced Circular Dichroism and Magnetism

Chiral Zero-Dimensional Transition Metal Halide Hybrid Perovskite with Ehanced Circular Dichroism and Magnetism

Aqueous‐Phase Preparation of Core–Shell Perovskite Nanorods Encapsulated in Polydopamine with Ultrahigh Water Stability

Preparation of Cs2SnI6 perovskite thin films based on solvent engineering and their properties of photodetectors

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