Powering the Future: Opportunities and Obstacles in Lead‐Halide Inorganic Perovskite Solar Cells

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Abstract Efficiency, stability, and cost are crucial considerations in the development of photovoltaic technology for commercialization. Perovskite solar cells (PSCs) a promising third‐generation due to their high efficiency low‐cost potential. However, stability organohalide perovskites remains significant challenge. Inorganic perovskites, based on CsPbX ₃ (X = Br − /I ), have garnered attention excellent thermal optoelectronic properties comparable those perovskites. Nevertheless, inorganic faces several hurdles, including need high‐temperature annealing achieve photoactive α‐phase susceptibility transitioning into nonphotoactive δ‐phase under environmental stressors, particularly moisture. These challenges impede creation high‐efficiency, high‐stability devices using low‐cost, scalable manufacturing processes. This review provides comprehensive background fundamental structural, physical, lead‐halide It discusses latest advancements fabricating PSCs at lower temperatures ambient conditions. Furthermore, it highlights progress state‐of‐the‐art devices, manufactured environments reduced temperatures, alongside simultaneous upscaling PSCs.

Language: Английский

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Dual Interface Passivation With Multi‐Site Regulation Toward Efficient and Stable Inverted Perovskite Solar Cells

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 23, 2025

Abstract The rapid crystallization process of perovskite produces a large number defects that remain critical factor disturbs the performance solar cells (PSCs). In this research, these challenges are mitigated by introducing multifunctional 2,6‐pyridinedicarboxylic acid chloride (PAC) as an additive into perovskite. During thermal annealing process, predominant accumulation PAC occurs at upper and buried interfaces film. possesses multiple passivating sites facilitate anchoring lead iodine defects, thereby enhancing quality material across both its dual grain boundaries. With unique property, combined with advantages enhanced crystallization, reduced non‐radiative recombination, boosted charge carrier mobility, optimal energy level alignment, PSC achieved power conversion efficiency (PCE) 25.60% maintained more than 90% after 3000 h under one equivalent light 1400 dark high temperature (85 °C). interface passivation strategy provides sustainable solution to stability environmental for commercialization cells.

Language: Английский

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Record‐Efficiency Inverted CsPbI₃ Perovskite Solar Cells Enabled by Rearrangement and Hydrophilic Modification of SAMs

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

Published: Sept. 6, 2024

Abstract Recently, the inverted CsPbI 3 perovskite solar cells (PSCs) have attracted extensive attentions due to their potential combine with silicon for tandem devices theoretical power conversion efficiency (PCE) of 44%. However, reported self‐assembled molecules (SAMs) as hole selected layer PSCs poor wettability and serious agglomeration, which greatly limits stability PSCs. To address above problem, niobium pentachloride (NCL) is applied prevent SAMs agglomeration a homogenous film hydrophilic surface. The optimized surface facilitates deposition cesium lead triiodide (CsPbI )film an enhanced referred orientation, suppressed defects, released stress. Consequently, NCL‐treated achieved champion PCE 21.24%, highest value all‐inorganic device maintained 97.61% initial after 1000 h storage in air, 92.27% tracking at maximum point (MPP).

Language: Английский

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Manipulating Intermediate Surface Energy for High‐Performance All‐Inorganic Perovskite Photovoltaics

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 5, 2025

Abstract The complete phase transition from DMAPbI 3 and Cs 4 PbI 6 intermediates to the final CsPbI perovskite is pivotal for fabricating high‐quality inorganic films. In this study, reaction energy barrier between sought be reduced by increasing their surface energy, where a perfluorinated compound designed using DFT modeling saturate of effectively prevent crystalline growth. Consequently, smaller with ultrahigh react more energetically facilitate rapid conversion desired phase. It found that resultant shows improved crystallinity morphology, as demonstrated suppressed non‐radiative recombination prolonged carrier lifetimes. As result, optimized solar cells (PSCs) achieve power efficiency (PCE) over 20%, along significantly light thermal stability. This work provides way regulate crystallization dynamics advanced quality perovskites.

Language: Английский

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Trimming defective perovskite layer surface boosts the efficiency for inorganic solar cells

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162654 - 162654

Published: Feb. 1, 2025

Language: Английский

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Hole‐selective Transparent In Situ Passivation Contacts for Efficient and Stable n–i–p Graded Perovskite/Silicon Tandem Solar Cells

Advanced Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract The optically deficient and intrinsically unstable hole transport layer (HTL) is the Achilles’ heel of n–i–p perovskite/silicon tandems. Here, a minimalist transparent hole‐selective contact developed without additional HTL by simply integrating cross‐linkable p‐type small molecules into antisolvent. This strategy not only improves perovskite crystallinity, shields from external stressors, suppresses interfacial mass exchange, but also provides efficient defect passivation favorable band alignment via formation graded heterojunction. Consequently, corresponding 1.65 eV solar cell achieves stabilized efficiency 19.6%, alongside significantly improved thermal, ultraviolet, operation stabilities. Furthermore, leveraging its outstanding transparency, bifacial single‐junction device showcased achieving record bifaciality 101.4%, monolithic tandem boasting certified 29.2% for 1.04 cm 2 , which represents highest achieved demonstration stable contacts encourages community to reevaluate structure, with goal harnessing high open‐circuit voltage PSCs.

Language: Английский

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Difunctional Polymerizable Additive Enables Efficient and Stable Wide‐Bandgap Perovskites for Perovskite/Organic Tandems Solar Cells

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract In perovskite‐organic tandem solar cells, the wide‐bandgap perovskite front subcells with high bromide concentrations suffer from increased defect state density, which adversely affects efficiency and stability of devices. this work, a difunctional polymerizable additive, N‐(3‐(dimethylamino)propyl)‐methacrylamide (DPM), is introduced into 1.86 eV film, where it undergoes in situ thermal polymerization to form polymeric network. Primarily, polymer contains multiple functional groups that interact A‐site cations adjacent chains, creating dynamic hydrogen bond This network effectively passivates grain boundary defects, inhibits ion migration, consequently reduces non‐radiative recombination. addition, storage mixed FA + /MA precursor solution enhanced, as condensation reaction between MA efficiently suppressed by DPM. As result, study achieves power conversion (PCE) 18.19% cells. The device retains 84% its initial after operating at maximum point for 1000 h. Most notably, PCE 25.06% achieved integrating subcell monolithic cell.

Language: Английский

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Defect Passivation and Stress Regulation via Bidentate Anchoring of Lewis Base for High‐Efficiency CsPbI₃ Solar Cells

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Abstract All‐inorganic CsPbI 3 perovskites film prepared via the low‐temperature solution method often suffers from numerous defects during crystallization process. Passivators used for surface passivation typically contain monofunctional groups, including sulfur, nitrogen, and oxygen. These monodentate groups bind to uncoordinated Pb 2+ by sharing electron pairs, thereby reducing defects. However, anchoring formed is relatively weak susceptible be damage due its low bond strength. Herein, a bidentate Lewis base, 2‐(2‐pyridyl)ethylamine (2‐PyEA), containing pyridine ring an alkyl amine, employed passivate stabilize crystal structure. Compared ligands, 2‐PyEA displays significantly enhanced coordination ability. In particular, of introduces lattice distortion transforms tensile stress into compressive within film, improving structural stability perovskite material. As result, solar cells treated with achieve impressive power conversion efficiencies (PCEs) 21.35% 17.19% active areas 0.09 1.0 cm 2 , respectively. Notably, device achieves even higher PCE 39.95% under indoor illumination conditions. The devices exhibit ambient conditions 5% relative humidity.

Language: Английский

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Union of Perovskite and Silicon: Overcoming Electrical Losses for Surpassing Shockley–Queisser Limit

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 6, 2025

Abstract Perovskite/silicon tandem solar cells (TSCs) have emerged as a highly promising technology for achieving exceptional power conversion efficiencies by leveraging the complementary light absorption properties of perovskite and silicon materials. However, electrical losses—originating from suboptimal film quality, pronounced nonradiative recombination at contact interfaces, charge transport inefficiencies in interconnecting layers (ICLs)—remain significant obstacles to reaching theoretical efficiency limits. This review systematically investigates primary sources losses perovskite/silicon TSCs offers comprehensive analysis recent advancements mitigating these losses, including enhancements reductions interfacial recombination, optimizations ICL performance. Special focus is placed on strategies aimed minimizing perovskite/perovskite/silicon triple‐junction TSCs. The concludes outlining future research directions, emphasizing critical role ongoing innovation material design, engineering, device architecture fully unlock potential

Language: Английский

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Surface Defect Clipping Strategy Enables High-Efficiency Inorganic Perovskite Solar Cells with Ultralow V_OC Deficit

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(42), P. 15562 - 15568

Published: Oct. 9, 2024

Recent developments in perovskite-silicon tandem solar cells (TSCs) have been quite remarkable. Inorganic perovskite (IPSCs) are gradually emerging as the top device. However, IPSCs generally suffer from a severe open-circuit voltage (VOC) deficit, limiting their efficiency gains and application TSCs. Here, we developed surface defect clipping strategy using pyridyl-2,6-dicarboxamide (PD) methanol solution. The proper polarity of solution will clip upper inorganic film provide corresponding path for penetration PD In addition, efficiently situ passivate uncoordinated Pb2+. After annealing, dense films were formed on perovskite. crystallization dynamics perovskites near is regulated, nonradiative recombination effectively suppressed. Eventually, record VOC 1.259 V (1.71 eV) achieved based inverted IPSCs, deficit only 450 mV. More importantly, unencapsulated IPSC devices show significantly enhanced thermal humidity stability.

Language: Английский

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