Research Progress on Stability of FAPbI₃ Perovskite Solar Cells

Crystal Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 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.

Language: Английский

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Unraveling the Complex Relationship Between Heteroatom Doping and Surface Reactivity in Monolayer MoSi2N4: Insights for Advanced Energy Storage

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136220 - 136220

Published: Jan. 1, 2025

Language: Английский

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Constructing Ultra-High Current Direct-Current Tribo-Photovoltaic Nanogenerators via Cu/Perovskite Schottky Junction

ACS Nano, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 10, 2024

Perovskite-based direct-current triboelectric nanogenerators (DC-TENGs) leveraging the tribo-photovoltaic effect have garnered significant attention for their ability to simultaneously harvest mechanical and solar energy, effectively enhancing output performance of DC-TENGs. Herein, we innovatively construct a rolling-mode Cu/ternary cation perovskite (FA

Language: Английский

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Linear regulation of perovskite work function through organic molecular layer surface modification

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(14)

Published: April 1, 2025

Surface modification via organic molecular layers is an effective strategy for experimentally regulating the work function (Φ) of perovskites. However, achieving precise control over Φ perovskites remains a significant challenge. In this study, FAPbI3 perovskite surface quantitatively regulated using anilinium (An) and its derivatives. Three factors contribute to change in (ΔΦ): structure relaxation, charge exchange, modified layer potential difference (ΔV). After with derivatives, ΔΦ correlates linearly ΔV layer, as contribution relaxation negligible, interfacial exchange constant. The experimental results also demonstrated that can be regulated. addition, linear relationship between applies other groups their well metal halide This methodology offers practical computational precisely regulate by designing layer.

Language: Английский

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Effect of halogen on the luminescence properties of two-dimensional double-perovskite (C6H16

Physical Review Applied, Journal Year: 2024, Volume and Issue: 22(1)

Published: July 25, 2024

Two-dimensional (2D) metal halide perovskites have garnered significant attention in the field of light-emitting diodes due to their high photoluminescence quantum yield and tunability. In comparison with widely studied 2D Ruddlesden-Popper (RP) perovskites, Dion-Jacobson (DJ) double which offer higher stability nontoxicity, received relatively less attention. addition, regulatory effects halogens on luminescence mechanisms performance DJ remain unknown. Utilizing density functional theory, properties double-perovskite $({\mathrm{C}}_{6}{\mathrm{H}}_{16}{\mathrm{N}}_{2}{)}_{2}\mathrm{Ag}\mathrm{Bi}{X}_{8}\ensuremath{\cdot}{\mathrm{H}}_{2}\mathrm{O}$ ($X$ = $\mathrm{Cl},\phantom{\rule{0.2em}{0ex}}\mathrm{Br},\phantom{\rule{0.2em}{0ex}}\mathrm{I}$) are effectively modulated through halogen substitution. The findings indicate that dissociation energy incrementally increases as changes from $\mathrm{I}$ $\mathrm{Br}$ $\mathrm{Cl}$, suggesting incorporation lighter enhances structural stability. minimal self-trapping formation (i.e., 0.08 eV) $({\mathrm{C}}_{6}{\mathrm{H}}_{16}{\mathrm{N}}_{2}{)}_{2}{\mathrm{Ag}\mathrm{Bi}\mathrm{I}}_{8}\ensuremath{\cdot}{\mathrm{H}}_{2}\mathrm{O}$ facilitates easy detrapment self-trapped excitons, leading a tendency toward free exciton luminescence. energies $({\mathrm{C}}_{6}{\mathrm{H}}_{16}{\mathrm{N}}_{2}{)}_{2}{\mathrm{Ag}\mathrm{Bi}\mathrm{Br}}_{8}\ensuremath{\cdot}{\mathrm{H}}_{2}\mathrm{O}$ $({\mathrm{C}}_{6}{\mathrm{H}}_{16}{\mathrm{N}}_{2}{)}_{2}{\mathrm{Ag}\mathrm{Bi}\mathrm{Cl}}_{8}\ensuremath{\cdot}{\mathrm{H}}_{2}\mathrm{O}$ 0.77 eV 0.96 eV, respectively, indicating substantial depths; thus, favoring transition dipole moments substantially than those $({\mathrm{C}}_{6}{\mathrm{H}}_{16}{\mathrm{N}}_{2}{)}_{2}{\mathrm{Ag}\mathrm{Bi}\mathrm{I}}_{8}\ensuremath{\cdot}{\mathrm{H}}_{2}\mathrm{O}$, substituting I $\mathrm{Cl}$ luminous efficiency $\mathrm{Cl},\phantom{\rule{0.2em}{0ex}}\mathrm{Br},\phantom{\rule{0.2em}{0ex}}\mathrm{I}$). These results substitution can not only affect but also modulate luminescent properties. Our research provides theoretical insights for experimental design superior materials.

Language: Английский

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Theoretical study on the photovoltaic application prospect of emerging three-dimensional organosulfide-halide perovskites (CYS)PbX2 (X = Cl, Br, and I)

Journal of Applied Physics, Journal Year: 2024, Volume and Issue: 136(4)

Published: July 25, 2024

The large Stokes shifts usually result in open circuit voltage (VOC) reduction, which will affect the photovoltaic performance of material. Recently, three-dimensional organosulfide-halide perovskites (CYS)PbCl2 and (CYS)PbBr2 [CYS: +NH3(CH2)2S−] have received much attention field due to their higher stability similar photoelectric properties (desirable direct bandgap, band dispersion, light absorption) than MAPbX3 (X = Cl, Br, I). Unfortunately, both materials exhibit emission. Thus, be clear about application prospects field, origin Stoke shift needs investigated. Moreover, bandgaps (2.17 eV) (2.32 are ideal bandgap value (0.9–1.6 for materials. Based on density functional theory, this paper explores cause further improves by halogen substitution. calculation results show that come from defect emission rather intrinsic self-trapping I atom substitution can reduce [(CYS)PbI2; gap 1.85 eV] enhance optical absorption carrier migration ability without destroying bandgap. Our research promote experimental synthesis more excellent perovskite

Language: Английский

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Interface engineering of FAPbI3 for passivating defects and improving stability with lead chalcogenides

Journal of Central South University, Journal Year: 2024, Volume and Issue: 31(12), P. 4625 - 4637

Published: Dec. 1, 2024

Language: Английский

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