Buried Interface Modulation Using Self‐Assembled Monolayer and Ionic Liquid Hybrids for High‐Performance Perovskite and Perovskite/CuInGaSe₂ Tandem Photovoltaics

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

Published: Jan. 6, 2025

Effective modifications for the buried interface between self-assembled monolayers (SAMs) and perovskites are vital development of efficient, stable inverted perovskite solar cells (PSCs) their tandem photovoltaics. Herein, an ionic-liquid-SAM hybrid strategy is developed to synergistically optimize uniformity SAMs crystallization above. Specifically, ionic liquid 1-butyl-3-methyl-1H-imidazol-3-iumbis((trifluoromethyl)sulfonyl)amide (BMIMTFSI) incorporated into SAM solution, enabling reduced surface roughness, improved wettability, a more evenly distributed potential film. Leveraging this optimized substrate, favorable growth high-quality crystals achieved. Furthermore, introduced functional ions readily bond with perovskites, effectively passivating undesirable cation or halide vacancies near interface. Remarkably, high power conversion efficiencies (PCEs) 25.68% 22.53% obtained normal-bandgap (≈1.55 eV) wide-bandgap (WBG) (≈1.66 PSCs along operational stability. Additionally, champion PCE 19.50% achieved semitransparent WBG PSCs, further delivering impressive 28.34% integrated four-terminal photovoltaics when combined CuInGaSe2 cells.

Language: Английский

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Co‐Adsorbent Boosting the Performance of Perovskite Solar Cell Based on Hole‐Selective Self‐Assembled Molecules

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

Published: Feb. 3, 2025

Abstract The inverted perovskite solar cells based on hole‐selective self‐assembled molecules (SAMs) have been setting new efficiency benchmarks. However, the agglomeration of SAM and lack defect passivation ability are two critical issues that need to be addressed. It is demonstrated by blending co‐adsorbent 4‐phosphoricbutyl ammonium iodide (4PBAI) with 4‐(7H‐dibenzo[c,g]carbazole‐7‐yl) phosphonic acid (4PADCB), enhanced homogeneity, conductivity, better energy levels can realized for co‐SAM contact. functional group 4PBAI also effectively passivate defects at buried interface template high‐quality growth. Assisted synergistic top modification, power conversion optimized device reaches 24.96%, which retain 95% initial after 1200 h in ambient unencapsulated device. findings suggest a well‐designed address limitations further enhance performance cutting‐edge SAMs.

Language: Английский

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Silver nanoparticle/amorphous tantalum nitride antenna for boosting efficiency of perovskite solar cells: Synergistically achieving near-field enhancement and chemical passivation

Solar Energy Materials and Solar Cells, Journal Year: 2025, Volume and Issue: 282, P. 113417 - 113417

Published: Jan. 12, 2025

Language: Английский

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Sulfonated ionic liquids containing imidazolium ring and fluorine atoms for interface modification of HTL-free carbon-electroded CsPbI2Br perovskite solar cells

Materials Today Energy, Journal Year: 2025, Volume and Issue: unknown, P. 101799 - 101799

Published: Jan. 1, 2025

Language: Английский

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Ligand‐Induced Crystallization Control in MAPbBr₃ Hybrid Perovskites for High Quality Nanostructured Films

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

Published: Feb. 5, 2025

Abstract Controlling the formation of hybrid perovskite thin films is crucial in obtaining high‐performance optoelectronic devices, since factors like morphology and film thickness have a profound impact on film's functionality. For light‐emitting applications grain sizes sub‐micrometer‐range previously shown enhanced brightness. It therefore to develop simple, yet reliable methods produce such films. Here, solution‐based synthesis protocol for on‐substrate MAPbBr 3 (MA = methylammonium) nanostructures by adding bifunctional rac ‐3‐aminobutyric acid precursor solution reported. This route improves key optical properties as photoluminescence quantum yields life times excited states inducing controlled slow‐down suppressing agglomeration effects. In situ spectroscopy reveals delayed slowed down crystallization process, which achieves structures with much reduced defect densities. Further, aggregation can be amount amino added adjusting allows cubic crystallites targeted size from nanometer micrometer scales. The nanocrystalline samples show amplified spontaneous emission (ASE) intensities, ASE thresholds purer signals, compared pristine films, even under intense driving, making them promising lasing applications.

Language: Английский

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Top-Down Dual-Interface Carrier Management for Highly Efficient and Stable Perovskite/Silicon Tandem Solar Cells

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Feb. 11, 2025

Abstract Despite significant advancements in the power conversion efficiency (PCE) of perovskite/silicon tandem solar cells, improving carrier management top cells remains challenging due to defective dual interfaces wide-bandgap perovskite, particularly on textured silicon surfaces. Herein, a series halide ions (Cl − , Br I ) substituted piperazinium salts are designed and synthesized as post-treatment modifiers for perovskite Notably, chloride induces an asymmetric bidirectional distribution from bottom surface, with large cations concentrating at surface small anions migrating downward accumulate buried interface. This results effective dual-interface defect passivation energy band modulation, enabling (1.68 eV) achieve PCE 22.3% record product open-circuit voltage × fill factor (84.4% relative Shockley–Queisser limit). Furthermore, device retains 91.3% its initial after 1200 h maximum point tracking without encapsulation. When integrated double-textured heterojunction remarkable 31.5% is achieved 1.04 cm 2 monolithic cell, exhibiting excellent long-term operational stability ( T 80 = 755 h) encapsulation ambient air. work provides convenient strategy engineering making high-efficiency stable platforms.

Language: Английский

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PTAA‐Based Perovskite Photovoltaics Catching up: Ionic Liquid Engineering‐Assisted Crystallization Through Sequential Deposition

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

Published: Feb. 20, 2025

Abstract PTAA as a widely studied polymeric hole transporting material, has garnered significant attention due to its outstanding thermal and chemical stability. However, the performance of PTAA‐based p‐i‐n devices is shown lag behind counterpart utilizing oxides or SAMs. In this study, ionic liquid, 1‐ethyl‐3‐methylimidazolium formate (EMIMCOOH), innovatively introduced into lead iodide (PbI 2 ) precursor solution, resulting in more pronounced mesoporous PbI film with expended pore‐size denser pores. This enhancement attributed coordination bond between ─C═O group EMIMCOOH Pb 2+ . intensified morphology not only facilities reaction organic layer, but also promotes conversion perovskite material. Importantly, incorporation slows down process, increasing domain size suppressed 0 trap density, uniform layer enhanced charge transport properties, evidenced by conducting atomic force microscope (c‐AFM) results. As result, yields power efficiency (PCE) 24.10% high fill factor exceeding 85%. Notably, PCE EMIMCOOH‐modified device can still maintain 86% initial value after 1500 h at 25 °C an N atmosphere.

Language: Английский

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Photoisomerizing Molecular Modification on the Buried Interface of Perovskite Solar Cells

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

Published: March 12, 2025

Abstract The operational stability issues of perovskite devices under illumination pose significant challenges for practical applications, attributed to substantial alterations in lattice distortion, defect enrichment, and stress distribution the excited state. However, most existing modification strategies predominantly focus on elimination chemical transformations at ground state level, which may not yield desired outcomes To address this challenge, study introduces a dynamic management strategy utilizing 4‐aminoazobenzene hydrochloride, exhibits photoinduced cis‐trans isomerism, buried interface within devices. Experimental results demonstrate that isomerized molecules anchored effectively inhibit formation defects mitigate interfacial accumulation. A comprehensive mechanism through isomerism transformation has been proposed elucidate process. Consequently, device efficiency have markedly enhanced, achieving peak 25.65% retaining over 92% its initial after 1200 h continuous International Summit Organic Photovoltaic Stability protocol (ISOS ).

Language: Английский

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Revealing the Critical Role of Electron‐Withdrawing Cores in Bulk Passivation of Diammonium Ligands Toward High‐Performance Perovskite Solar Cells

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

Published: March 20, 2025

Abstract Diammonium derivatives with electron‐withdrawing cores of cyclohexyl or phenyl have demonstrated enormous potential in achieving high‐performance perovskite solar cells. Nevertheless, the critical role these diammonium passivation on device performance is yet to be elucidated. Herein, two kinds ligands 1, 4‐cyclohexyldimethylammonium diiodide (CyDMADI) and 4‐phenyldimethylammonium (PhDMADI) are introduced into precursor for bulk passivation. The PhDMADI system exhibits a stronger unit comparison CyDMADI core, thus resulting enhanced electrostatic interaction between uncoordinated Pb 2+ groups hydrogen bonds I─Pb skeleton. Such strengthened interactions effectively inhibit generation trap states therefore significantly decrease non‐radiative recombination. PhDMADI‐passivated film demonstrates mitigated microstrain decreased grain boundary grooves （GBGs） compared CyDMADI‐based counterpart. Simultaneously, treatment can efficiently slow down hot‐carriers cooling dynamics process, benefiting transfer hot‐carriers. Consequently, achieves an impressive efficiency 26.04%, along excellent operating stability which retains 90% its initial after 1100 h tracking at maximum power point under continuous one sun illumination.

Language: Английский

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A Review on Multifaceted Role of Ionic Liquids in Modern Energy Storage Systems: From Electrochemical Performance to Environmental Sustainability

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Language: Английский

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