Materials Today Energy, Journal Year: 2024, Volume and Issue: unknown, P. 101757 - 101757
Published: Nov. 1, 2024
Language: Английский
Chemical Communications, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
The interfaces between the perovskite and charge-transporting layers typically exhibit high defect concentrations, which are primary cause of open-circuit voltage loss.
Language: Английский
Citations
20
Small, Journal Year: 2024, Volume and Issue: 20(43)
Published: June 26, 2024
Inverted perovskite solar cells (PSCs) attract continuing interest due to their low processing temperature, suppressed hysteresis, and compatibility with tandem cells. Considerable progress has been made reported power conversion efficiency (PCE) surpassing 26%. Electron transport Materials (ETMs) play a critical role in achieving high-performance PSCs because they not only govern electron extraction from the layer cathode, but also protect contact ambient environment. On other hand, non-radiative recombination losses at perovskite/ETM interface limits future development of PSCs. Compared fullerene derivatives, non-fullerene n-type organic semiconductors feature advantages like molecular structure diversity, adjustable energy level, easy modification. Herein, ETM is systematically summarized based on functionalization strategy. Various types design approaches for producing are presented, insight relationship chemical device performance discussed. Meantime, trend analyzed. It hoped that this review provides insightful perspective innovation new ETMs toward more efficient stable
Language: Английский
Citations
12
Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)
Published: Sept. 22, 2024
Abstract Two-terminal (2-T) perovskite (PVK)/CuIn(Ga)Se 2 (CIGS) tandem solar cells (TSCs) have been considered as an ideal cell because of their best bandgap matching regarding to Shockley–Queisser (S–Q) limits. However, the nature irregular rough morphology commercial CIGS prevents people from improving device performances. In this paper, D-homoserine lactone hydrochloride is proven improve coverage PVK materials on surfaces and also passivate bulk defects by modulating growth crystals. addition, minority carriers near PVK/C60 interface incompletely passivated trap states caused recombination. A surface reconstruction with 2-thiopheneethylammonium iodide N , -dimethylformamide assisted passivates defect sites located at grain boundaries. Meanwhile, LiF used create field effect, repelling hole away C60 thus reducing As a result, 2-T PVK/CIGS yielded power conversion efficiency 24.6% (0.16 cm ), one highest results for TSCs our knowledge. This validation underscores potential methodology in achieving superior performance cells.
Language: Английский
Citations
11
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(40)
Published: July 17, 2024
Abstract Two‐step sequential deposition is a widespread technique for the fabrication of perovskite films, renowned its better control crystallization process. However, achieving well‐controlled and complete reaction PbI 2 by organic ammonium salts remains key challenge. Previous studies have predominantly focused on regulating properties layer while paying less attention to high reactivity salts. In this study, natural molecule anethole first explored during two‐step deposition, focusing modulation formamidine ion (FA + ). It demonstrated that FA exhibits strong hydrogen bond interactions with anethole, inhibiting effectively delaying rapid between FAI . This decelerates kinetics facilitating orderly suppressing detrimental δ‐phase formation. Consequently, FA‐based films crystallinity, preferred orientation, low defect state density are obtained. The fabricated planar hole transport layer‐free carbon electrode solar cells deliver an efficiency 20.41% (certified 20.0%), which new record kind cell.
Language: Английский
Citations
6
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Oct. 24, 2024
Abstract Perovskite solar cells (PSCs) can enable renewable electricity generation at low levelized costs, subject to the invention of an economically feasible technology for their large‐scale fabrication, like vapor deposition. This approach is effective fabrication small area (<1 cm 2 ) PSCs, but its scale‐up produce high‐efficiency larger modules has been limited by a severe imbalance between vapor‐solid reaction kinetics and mass‐transport volatile ammonium salt precursor. In this study, amidine‐based low‐dimensional perovskite introduced as intermediate solid‐vapor help resolve limitation. improves pathway produces unique vertically monolithic grains with no detectable horizontal boundaries, which used 1.0 PSCs efficiency 22.1%, well 12.5 48 delivering 21.1% 20.1% efficiency, respectively. The retain ≈85% initial performance after 900 h continuous operation (ISOS‐L‐1 protocol) ≈100% 2800 storage in ambient environment (ISOS‐D‐1 protocol).
Language: Английский
Citations
5
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 156259 - 156259
Published: Sept. 1, 2024
Language: Английский
Citations
4
Current Opinion in Colloid & Interface Science, Journal Year: 2024, Volume and Issue: 74, P. 101848 - 101848
Published: Aug. 31, 2024
Language: Английский
Citations
3
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 5, 2025
Abstract Multifunctional polymer materials are extensively applied to regulate the crystallization process of perovskite films. However, a comprehensive understanding correlations among spatial structure polymers, modulation, and device performance is still lacking. Here, restricted assembly strategy proposed prepare high‐quality films by systematically studying effect space configurations polymers on modulating cesium lead triiodide (CsPbI 3 ) perovskite. The results confirm importance high backbone coplanar in promoting nucleation, accelerating phase transitions, enhancing crystalline orientation. with not only facilitates formation uniform dense nucleation sites precisely controlling distribution colloidal particles but also enhances crystal orientation through orientational growth induced structure. As result, efficiency CsPbI solar cells increases from 17.84% 20.39%. Additionally, unencapsulated devices show excellent storage operational stability.
Language: Английский
Citations
0
Solar RRL, Journal Year: 2025, Volume and Issue: unknown
Published: March 9, 2025
Wide‐bandgap (WBG) perovskite films are vital for advancing high‐efficiency silicon/perovskite tandem technology. However, the performance of WBG produced using vapor deposition techniques often lags behind that solution‐based methods due to challenges in accurately controlling halide ions and crystallization quality, particularly Br/I ratio vapor‐deposited films. In this study, we investigated ion exchange (IE) process vapor‐solid reaction developed two producing CsFAPbI x Br 3− thin films: one involved reacting 3 FABr (I‐based IE perovskite), while other used CsFAPbBr FAI (Br‐based perovskite). Our findings demonstrate Br‐based exhibits superior quality lower defect density throughout process. As a result, approach has facilitated development solar cells with maximum power conversion efficiency 19.51%. Additionally, unencapsulated devices were able retain 88.9% their initial after being stored 1500 hr under atmospheric conditions (25°C, 18 ± 5% RH). This research provides novel strategy methodology fabricating high‐performance cell via vapor‐based techniques, which is crucial industrialization both cells.
Language: Английский
Citations
0
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: April 8, 2025
Abstract Low‐pressure chemical vapor deposition (CVD) is a promising technique for metal halide perovskite photovoltaics fabrication due to its low manufacturing cost, conformal coverage, and high scalability industry‐scale fabrication. However, the lack of knowledge reaction kinetics makes solar cell performance lag behind solution‐processed counterpart. Herein, formation crystal growth process in CVD are studied by unraveling mechanism ion diffusion via tracking vapor–solid with various semi‐in‐situ characterizations. It found that Cs + can migrate along lattice uniformly distribute vertical direction final film even changing order CsBr PbI 2 solid source, whereas this significantly affect bandgap perovskite. Depositing before results faster conversion inorganic precursors phase, yielding wider Finally, we fabricated semi‐transparent cells using all‐vapor process, which showed champion efficiency 18.7% it retained ≈94% initial after 200 h continuous operation. Moreover, achieved 26.9% monolithic perovskite‐silicon tandem cells.
Language: Английский
Citations
0