Small, Год журнала: 2024, Номер unknown
Опубликована: Дек. 20, 2024
Currently, the power conversion efficiency (PCE) of inverted perovskite solar cells (PSCs) is still limited by reduced open-circuit voltage (V
Язык: Английский
Crystal Research and Technology, Год журнала: 2025, Номер unknown
Опубликована: Янв. 8, 2025
Abstract The formamidinium lead iodide (FAPbI 3 ) perovskite has emerged as a promising material for high‐efficiency photovoltaic applications. Although power conversion efficiency of more than 26% been achieved, stability issues have hindered its commercial application. In this study, the FAPbI under adverse conditions such humidity, oxygen, ultraviolet light, and temperature fluctuations is systematically reviewed. known effective strategies improving are discussed. Current studies shown that technologies doping, halide alloying, additive manufacturing engineering, interface modification identified in mitigating phase transitions enhancing environmental durability. Encapsulation technology further improves moisture heat resistance. Compared with other stabilization strategies, doping alloying can address effects narrowing absorption edge. Interface engineering an essential understanding mechanism, which will greatly improve problem practical application . This paper also looks forward to future research directions development trends.
Язык: Английский
Процитировано
2
Advanced Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 26, 2025
Abstract Formamidinium lead iodide (FAPbI 3 ) perovskite films, ensuring optically active phase purity with uniform crystal orientation, are ideal for photovoltaic applications. However, the α‐FAPbI is easy to degrade into δ‐phase due numerous defects within randomly oriented films. Here, a “quasi‐2D” template pre‐deposited on film surface crystallization process based two‐step preparation technology, which directly induced pure and highly orientated of across downward growth process. Furthermore, enlarged interaction between 2D components colloidal properties delayed effectively, yielding high crystallinity low trap state density. The resulting devices exhibited champion efficiency as 25.79% comprehensively improved device stability. This work provides new insights utilization formation mechanism behind perovskites.
Язык: Английский
Процитировано
1
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 5, 2025
The bottom small n phases in quasi-two-dimensional (Q-2D) perovskite films significantly hinder their photovoltaic performance development due to severely low conductivity and nonideal band alignment the corresponding solar cells. In this study, we successfully suppressed growth of Q-2D Ruddlesden-Popper (RP) (BA2MA4Pb5I16, ⟨n⟩ = 5) by introducing 2,7-bis(diphenylphosphoryl)-9,9'-spirobifluorene (SPPO13) as an additive into precursor solution. It is interesting find that hole transport layer poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) our p-i-n device can attract SPPO13 π-π stacking effect. As a result, concentrates at bottom, coordination between PbI2 leads more [PbI6]4- octahedra gathering downside film. Thereby, large remain unwanted are suppressed. optimized achieves remarkable power conversion efficiency 18.41%, which, according knowledge, highest value for BA-MA-based perovskite. Moreover, also demonstrates outstanding stability, maintaining 99.5% 95.3% initial after being stored over 3500 h under maximum point tracking operation 400 h, respectively. Unlike conventional methods primarily address bulk or interface properties, approach uniquely combines effects defect passivation through phosphine oxide groups, leading enhanced crystallinity, vertical orientation, nonradiative recombination. This work provides new regulate n-phase promote behavior
Язык: Английский
Процитировано
1
Green Energy and Environmental Technology, Год журнала: 2024, Номер 3
Опубликована: Авг. 1, 2024
Energy and environment are two of the most important issues our time on a worldwide scale. Photocatalysis is environmentally friendly answer to these issues. Perovskite-based materials have sparked attention due their low cost lack toxicity. Substitutable solar energy semiconductor photocatalytic technologies essential ways reduce or avert global catastrophes concerns. It estimated that over one thousand different such as KGaO 3 RbMg 2 Ti O 10 been tested for potential photocatalysts recently. Among many endeavors, production seen crucial technique using long-term environmental reasons. Many (RbGaO ) previously combined. A photoelectrochemical cell device converts light electricity via reaction. The sun major source power. Clean hydrogen generated by photocatalyst, which removes both inorganic organic contaminants from water. Photocatalysts operate whole spectrum developed result significant advances in this area. various produced so far, single- double-perovskite-based received lot attention.
Язык: Английский
Процитировано
7
Journal of Materials Chemistry C, Год журнала: 2024, Номер 12(21), С. 7562 - 7571
Опубликована: Янв. 1, 2024
Ambient solution-processed halide perovskite thin films are susceptible to oxygen and moisture. Composition morphology control of the via anti-solvents treatment, i.e. , DCB, EtOH, CB affect their crystallization solar cell performance.
Язык: Английский
Процитировано
6
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Окт. 18, 2024
Achieving high-efficiency perovskite solar cells (PSCs) hinges on the precise control of film crystallization process, often improved by inclusion additives. While dimethyl sulfoxide (DMSO) is traditionally used to manage this its removal from films problematic. In work, methyl phenyl (MPSO) was employed instead DMSO slow rate, as MPSO more easily removed structure. The electron delocalization associated with benzene ring in decreases density around oxygen atom group, thus reducing interaction PbI
Язык: Английский
Процитировано
5
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Авг. 24, 2024
Abstract Metal halide perovskite with high Young's modulus is prone to form cracks when subjected mechanical stresses such as bending, twisting, or impacting, ultimately leading a permanent decline in the performance of their photovoltaic devices. These properties pose challenges durability long‐term service devices and production flexible To address this issue, poly (lipoic acid‐co‐Styrene) elastomer employed modulate films. The peak force quantitative nanomechanical atomic microscopy measurements nanoindentation tests demonstrated reduction modulus, lower preventing formation defects during deformation. Moreover, approach also suppressed non‐radiative recombination solar cells by leveraging interaction between functional groups defects. Through method, rigid inverted attained power conversion efficiency 24.42% alongside remarkable stability. Concurrently, achieved 22.21%. This strategy offers promising avenue for fabricating enhancing durability.
Язык: Английский
Процитировано
4
Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155183 - 155183
Опубликована: Авг. 25, 2024
Язык: Английский
Процитировано
3
Small Methods, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Abstract Weak reflectivity of carbon‐electrode (CE) limits light harvesting perovskite solar cells that are based on CEs (CPSCs), especially for long‐wavelength region. To solve this problem, herein the crystallization (PVSK) is regulated by tuning concentration PbI 2 precursor during two‐step growth method. As increases from 1.0 to 1.7 mol L −1 , film thickness PVSK rises ≈360 ≈850 nm, and average grain/crystallite size enlarges 0.70 1.14 µm, 54.2 67.5 respectively. Due upgraded crystallization, Urbach energy drops 98 41 meV, lifetime charge carriers obviously, meanwhile improved regions (600–810 nm). External quantum efficiency test CPSCs shows integrated short circuit current density ( J SC ) 15.6% Accordingly, improves 20.27 (±0.36) 22.58 (±0.27) mA cm −2 . Besides, leakage retarded, open‐circuit voltage improved. These merits help elevate power conversion 15.37 (±0.42) 16.37 (±0.68) % (optimized at 17.69%). Prolonging spin‐time further harvest, which optimizes device 19.17%.
Язык: Английский
Процитировано
0
Advanced Science, Год журнала: 2025, Номер unknown
Опубликована: Апрель 1, 2025
Chiral molecules have shown potential in passivating perovskite solar-cell interfaces and boosting charge transport drawn significant research interest. However, the specific passivation mechanisms of different chiral structures on films their photoelectric effects require further investigation. In this study, R-, S-, rac-methylbenzylammonium chloride (MBACl) are used to address interface defects. S-MBACl exhibits strongest chelation effects. Kelvin probe force microscopy results show that increases surface differences between dark illuminated states by 227%, from 39.67 129.91 mV, enhances electron-hole separation. Consequently, power conversion efficiency (PCE) S-MBACl-modified devices is 24.07%, which 109% times pure sample. The PCE unencapsulated solar cells remains at 89% initial value after aging 25 °C for 2400 h N2 atmosphere. This study provides valuable insights future studies molecules.
Язык: Английский
Процитировано
0