Encapsulating perovskite solar cells for long-term stability and prevention of lead toxicity

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(2)

Published: April 1, 2024

Lead halide perovskite solar cells (PSCs) have achieved remarkable efficiencies comparable to those of their established silicon counterparts at a very fast pace. Moreover, solution-processable facile technologies offer low-cost, low-temperature, scalable fabrication these cells. Numerous studies focused on improving the performance, stability, and processing PSCs. However, potential lead toxicity poor long-term stability impede commercialization. In recent years, several developed novel encapsulants for PSCs that can simultaneously improve leakage. Although improvements been made both fronts, no solution date could achieve level leakage prevention result in market breakthrough. Here, we analyze PSC encapsulation techniques undertaken years. While most related either or toxicity, note be solved together with suitable encapsulant is impermeable moisture Pb2+ ions. addition, lack unified standard testing protocol has led under variety temperatures, humidities, environmental conditions. Therefore, urgency cannot overlooked.

Language: Английский

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Advancements in Perovskites for Solar Cell Commercialization: A Review

Advanced Powder Materials, Journal Year: 2025, Volume and Issue: unknown, P. 100275 - 100275

Published: Feb. 1, 2025

Language: Английский

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Iodine Modulates the MACl‐Assisted Growth of FAPbI₃ for High Efficiency Perovskite Solar Cells

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(25)

Published: April 13, 2024

Abstract The preferential growth of α‐phase formamidinium perovskite (α‐FAPbI 3 ) at low temperatures can be achieved with the incorporation chloride‐based additives, methylammonium chloride (MACl) being most common example. However, compared to other less‐volatile MACl only remains in growing film for a short time before evaporating during annealing, primarily influencing early stages formation. In addition, evaporation as methylamine (MA 0 and HCl introduce side reaction between MA (FA), undermining compositional purity phase stability α‐FAPbI . this study, it is demonstrated that addition iodine (I 2 into FAPbI precursor solution containing suppresses MA‐FA annealing. Additionally, delayed owing strong interaction triiodide. added I facilitates spontaneous prior an improved bottom morphology due formation fewer byproducts. Perovskite solar cells derived from ‐incorporated deliver champion power conversion efficiency 25.2% attributed suppressed non‐radiative recombination.

Language: Английский

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Materials and methods for cost-effective fabrication of perovskite photovoltaic devices

Communications Materials, Journal Year: 2024, Volume and Issue: 5(1)

Published: Sept. 18, 2024

Language: Английский

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An Integrated Deposition and Passivation Strategy for Controlled Crystallization of 2D/3D Halide Perovskite Films

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: Feb. 28, 2024

Abstract This work introduces a simplified deposition procedure for multidimensional (2D/3D) perovskite thin films, integrating phenethylammonium chloride (PEACl)‐treatment into the antisolvent step when forming 3D perovskite. simultaneous and passivation strategy reduces number of synthesis steps while simultaneously stabilizing halide film improving photovoltaic performance resulting solar cell devices to 20.8%. Using combination multimodal in situ additional ex characterizations, it is demonstrated that introduction PEACl during formation slows down crystal growth process, which leads larger average grain size narrower distribution, thus reducing carrier recombination at boundaries device's stability. The data suggests annealing wet film, diffuses surface hydrophobic (quasi‐)2D structures protect bulk from humidity‐induced degradation.

Language: Английский

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Advances in Blue Energy Fuels: Harvesting Energy from Ocean for Self‐Powered Electrolysis

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: May 22, 2024

Abstract 70% of the earth's surface is covered by ocean, and it represents a promising renewable clean energy reservoir that waits for further exploration. Although hydrogen (H 2 ) boasts high density 143 MJ kg −1 environmentally friendly attributes, widespread commercialization green H production remains formidable challenge. With huge amounts water, ocean presents an opportunity generating fuel through process seawater electrolysis. This review introduces ocean‐driven, self‐powered blue conversion devices, including triboelectric nanogenerators (TENGs), magnetoelastic generators (MEGs), solar cells. They are able to convert from water waves, wind, energy, into electricity on‐site seawater‐splitting generation. systematically reports this compelling approach introducing fundamental principles devices showcasing practical applications. Additionally, aiming promote future research in field sustainable also delves development novel harvesting systems with efficiency large‐scale effective production.

Language: Английский

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Significance of Formamidinium Incorporation in Perovskite Composition and Its Impact on Solar Cell Efficiency: A Mini‐Review

Advanced Energy and Sustainability Research, Journal Year: 2024, Volume and Issue: 5(8)

Published: April 26, 2024

Perovskite solar cells (PSCs) have gained tremendous research interest recently owing to several advantages, including low material cost, facile solution processability, bandgap tunability, and alluring device efficiency. The organic formamidinium (FA) cation‐based perovskites are mainly considered as one of the potential candidates for charge carrier generation due their excellent properties, such thermal stability than traditional perovskites. However, inevitable unfavorable polymorphism (i.e., α δ ) at room temperature still forms basis numerous works allow fabrication a high‐quality absorber enhances PSCs performance. studies resolve contemporary techniques (e.g., passivation strategy) with recent novel methods presented in this review form essence improvements PSCs. morphology also influences charge‐transfer behavior device's lifetime. Therefore, understanding these properties is essential improve quality avoid many defects. This focuses on structure pure mixed FA various halides, cation's role composition. And comprehensive overview double, triple, quadrupole results proper scientific explanations understand physics.

Language: Английский

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

SusMat, Journal Year: 2024, Volume and Issue: 4(4)

Published: July 29, 2024

Abstract Active oxygen highly affects the efficiency and stability of perovskite solar cells (PSCs) owing to capacity either passivate defects or decompose lattice. To better understand in‐depth interaction, we demonstrate for first time that photooxidation mechanism in all‐inorganic film dominates phase deterioration kinetics by forming superoxide species presence light oxygen, which is significantly different from organic‒inorganic hybrid even tin‐based perovskites. In perovskites, prefer oxidize longer weaker Pb‒I bond PbO I 2 , leaving much stable CsPbBr 3 phase. From this chemical proof‐of‐concept, employ an organic bioactive factor, Tanshinone IIA, as a sweeper enhance environmental tolerance inorganic perovskite, serving “skincare” agent anti‐aging organisms. Combined with another key point on healing defective lattice, best carbon‐based CsPbI Br cell delivers high 15.12% superior against light, humidity, heat attacks. This method also applicable p‒i‒n inverted (Cs 0.05 MA FA 0.9 )Pb(I 0.93 0.07 ) 23.46%. These findings not only help us decomposition mechanisms depth but provide potential strategy advanced PSC platforms.

Language: Английский

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Advances in chloride additives for high-efficiency perovskite solar cells: multiple points of view

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(90), P. 13394 - 13405

Published: Jan. 1, 2023

Chloride additives for high performance perovskite solar cells, and the understanding of their roles from viewpoint solubility, volatility, cation size chemical groups.

Language: Английский

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Enhanced Thermal and Photostability of Perovskite Solar Cells by a Multifunctional Eu (III) Trifluoromethanesulfonate Additive

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 1, 2024

Abstract Perovskite solar cells (PSCs) have witnessed a meteoric rise in device performance. However, maintaining photostability, particularly under thermal stress, remains challenge due to defect formation the perovskite layer. This study introduces europium (III) trifluoromethanesulfonate [Eu(OTF) 3 ] as multifunctional additive two‐step processed films, significantly improving performance and high‐temperature photostability of n‐i‐p PSCs. Density function theory (DFT) calculations reveal that OTF − anion strongly coordinates with Pb 2+ , effectively inhibiting iodine vacancy formation. The addition Eu(OTF) promotes grain growth ≈2 µm enhances film crystallinity. PSCs structure ITO/SnO 2 /perovskite/PDCBT/NiO x /Au achieve champion power conversion efficiency (PCE) 23.8%. Under 85 ± 5 °C 1 sun illumination at an open circuit ambient air, retain 82% their initial PCE after aging for 1500 h.

Language: Английский

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