Fabrication and Characterization of a Lead-Free Cesium Bismuth Iodide Perovskite through Antisolvent-Assisted Crystallization

Nanomaterials, Год журнала: 2024, Номер 14(7), С. 626 - 626

Опубликована: Апрель 2, 2024

Cesium bismuth iodide perovskite material offers good stability toward ambient conditions and has potential optoelectronic characteristics. However, wide bandgap, absorber surface roughness, poor coverage with pinholes are among the key impediments to its adoption as a photovoltaic material. Herein, bandgap modification tailoring of morphology have been performed through molar ratio variation antisolvent treatment, whereby type III (toluene) based on Hansen space utilized. XRD Raman spectroscopy analyses confirm formation 0D/2D mixed dimensional structure improved properties when CsI/BiI3 was adjusted from 1.5:1 1:1.5. The absorption results Tauc plot determination show that fabricated film lower 1.80 eV. TRPL analysis reveals possesses very low charge carrier lifetime 0.94 ns, suggesting deep defects. Toluene improves 1.89 ns. average grain size also increases 323.26 nm 444.3 upon toluene addition. Additionally, inclusion in modest improvement PCE, 0.23% 0.33%.

Язык: Английский

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Crystallization Modulation Investigation on a 0D/2D Mixed Dimensional Lead-free Cesium Bismuth Iodide Perovskite

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179460 - 179460

Опубликована: Фев. 1, 2025

Язык: Английский

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Fabrication of Dual-Functional Cs3Bi2I9-WO3 S-scheme heterojunction for Photocatalytic H2 Production and Polluted Water Treatment: Optimization, Mechanism and Toxicity evaluation

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 179730 - 179730

Опубликована: Март 1, 2025

Язык: Английский

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Optimization of dimethylammonium addition and effects of guanidium co-addition to CH3NH3PbI3 perovskite solar cells

Results in Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 100528 - 100528

Опубликована: Апрель 1, 2025

Язык: Английский

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Machine learning screening and DFT calculations for exploring Cs2Ag0.75X0.25BiCl6 (X=Na, K, Rb) double perovskites as underwater photovoltaic materials

Solar Energy Materials and Solar Cells, Год журнала: 2025, Номер 289, С. 113674 - 113674

Опубликована: Май 2, 2025

Язык: Английский

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Quantitative evaluation of lead-free perovskite solar cells based on data envelopment analysis

The European Physical Journal Special Topics, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Язык: Английский

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Synthesis of lead-free cesium bismuth iodide perovskite ink for solar cell using flow reactor

Solar Energy, Год журнала: 2024, Номер 286, С. 113150 - 113150

Опубликована: Дек. 12, 2024

Язык: Английский

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Thin Film Cs2TiBr6 Perovskite Solar Cell Incorporating Functionalized PbS Colloidal Quantum Dots as a Hole Transporting Layer

Journal of Physics and Chemistry of Solids, Год журнала: 2024, Номер 196, С. 112306 - 112306

Опубликована: Сен. 4, 2024

Язык: Английский

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Improving the water resistance of Bi‐based perovskite‐inspired materials for vapor‐phase photocatalytic overall water splitting

Solar RRL, Год журнала: 2024, Номер 8(14)

Опубликована: Июнь 24, 2024

Lead halide perovskites are well known for their exceptional photophysical and electronic properties, which have placed them at the forefront of challenging optoelectronic applications solar‐to‐fuel conversion. However, air/water instability, combined with toxicity, is still a critical problem that has slowed down commercialization. In this sense, bismuth‐based derivatives attract much interest as potentially safer, air‐stable alternative. Herein, novel Bi‐based perovskite‐inspired material, IEF‐19 (IEF stands IMDEA Energy Framework), contains bulky aromatic cation (1,5‐diammonium naphthalene), prepared. Additionally, an N ‐alkylation strategy successfully employed to achieve four water‐stable materials, diammonium naphthalene cations tetra‐alkylated by methyl, ethyl, propyl, butyl groups. Moreover, computational studies performed gain deeper understanding intrinsic structural stability affinity water molecules materials. Importantly, air‐ IEF‐19‐Et (i.e., stable least 12 months under ambient conditions 3 weeks in contact water) found be active photocatalyst vapor‐phase overall splitting absence any sacrificial agent both ultraviolet–visible or simulated sunlight irradiation. This material exhibits estimated apparent quantum yield 0.08% 400 nm, partially explained its adequate energy band level diagram.

Язык: Английский

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Unraveling the cation dependent carrier cooling and transient mobility in lead-free A3Sb2I9 perovskites

The Journal of Chemical Physics, Год журнала: 2024, Номер 160(24)

Опубликована: Июнь 26, 2024

Lead halide perovskites (LHPs) have gained prominence for their exceptional photophysical properties, holding promise applications in high-end optoelectronic devices. However, the presence of lead is one major obstacles to commercialization LHPs field photovoltaics. To address this, researchers explored environment friendly lead-free perovskite solar cells by investigating non-toxic materials. This study explores enhancement properties through chemical engineering, specifically cation exchange, focusing on crucial process hot carrier cooling. Employing femtosecond transient absorption spectroscopy and optical pump terahertz probe spectroscopy, we probed relaxation dynamics A3Sb2I9 with cesium rubidium cations. unravels that found be slower Rb3Sb2I9; along mobility decay retarded. Overall, this suggests an antimony-based Rb3Sb2I9 could a substantial These findings provide valuable insights into engineering strategies, aiming improve overall performance lead-free-based photovoltaic

Язык: Английский

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