Fundamental Research, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Language: Английский
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
The addition of organic cationic iodides to form low-dimensional perovskite is an essential strategy for defect passivation in solar cells (PSCs). Specially, the 2D/3D structure can combine stability 2D and high charge transport performance 3D perovskite. Here, we introduced phenylammonium hydroiodide salts with different alkyl chain lengths into PSCs precursor solution research influence on formation thin films photovoltaic PSCs. As a result, champion power conversion efficiency (PCE) was increased 22.68% by incorporation cation phenylpropyl ammonium iodide (PPAI) best length. We further fabricated modules (PSMs) aperture area 21 cm2, achieving impressive 21.65% excellent that maintaining 89% its initial after 1000 h maximum point tracking.
Language: Английский
Citations
1
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Oct. 9, 2024
Interface engineering is the core of device optimization, and this particularly true for perovskite photovoltaics (PVs). The steady improvement in their performance has been largely driven by careful manipulation interface chemistry to reduce unwanted recombination. Despite that, PVs devices still suffer from unavoidable open circuit voltage (V
Language: Английский
Citations
6
ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(11), P. 5471 - 5482
Published: Oct. 21, 2024
Molecular materials with high structure-design freedom are used as new interface passivators to reduce nonradiative recombination in inverted perovskite solar cells (PSCs). However, most molecular modifiers unable achieve a long-term passivation effect due self-aggregation. Here, the modifier 1-methyl-2-thiomethyl-1H-imidazole-5-carboxylate (SMC) ester and thiol groups is carefully developed. The weaken self-aggregation triggered by intermolecular hydrogen bonds, making such aggregations easier disassemble during heating form net-like insulating layer random openings, which dramatically increase charge transport. More importantly, electron transfer between disulfide can accelerate elimination of Pb0 I2 redox reactions prevent phase separation. Ultimately, optimized PSCs bandgaps 1.68 1.55 eV showed surprising fill factors 84.83% 86.18%, resulting champion efficiencies 23.45% (certified 22.98%, highest date for wide-bandgap) 25.71% 25.28%), respectively. Remarkably, both unencapsulated devices maintained over 94% their initial efficiency under maximum power point tracking 600 h (50 °C) 1000 (65 °C), respectively, confirming impressive operational stability.
Language: Английский
Citations
6
Small, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 10, 2025
Abstract Building 2D/3D heterojunction is a promising approach to passivate surface defects and improve the stability of perovskite solar cells (PSCs). Developing effective methods build high‐quality in demand. The formation involves both diffusion 2D spacer molecules phase transition from 3D structure. Herein, DMSO‐assisted method demonstrated simultaneously regulate kinetics, yielding top layer with continuous coverage, which enhances photovoltaic performance PSCs. It found that presence DMSO significantly facilitates cation. Meanwhile residual may partially dissolve perovskite, facilitating reaction between ultimately leading sequential secondary crystal growth appearance distinct layer. effectively passivates thus suppresses interfacial charge recombination. As result, champion PSC based on optimal exhibits high fill factor 85% power conversion efficiency 24%. work offers novel perspective for construction heterojunctions.
Language: Английский
Citations
0
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
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: April 15, 2025
Two-dimensional (2D) perovskites have great application potential in the photovoltaic field, but carriers can only be transmitted in-plane due to limitation of quantum well structure. It is usually necessary induce a vertical orientation devices overcome this limitation. Here we find that carrier 2D by out-of-plane polarization. 4-(Aminomethyl)piperidiniumPbI4 (4-AMPI) low-band-gap perovskite ferroelectric with In work, 4-AMPI was annealed at different temperatures fabricate growing along crystal planes. Under irradiation AM 1.5G, parallel-grown films exhibit photocurrent density comparable vertically grown films, indicating polarization help constraints. Compared nonferroelectric 3-(aminomethyl)piperidiniumPbI4 (3-AMPI), significantly higher, which attributed advantage for generation and transport carriers. This work suggests molecular ferroelectrics are candidates fabrication devices.
Language: Английский
Citations
0
Energies, Journal Year: 2024, Volume and Issue: 17(21), P. 5282 - 5282
Published: Oct. 24, 2024
Perovskite solar cells (PSCs) suffer from a quick efficiency drop after fabrication, partly due to surface defects, and can be further enhanced with the passivation of defects. Herein, is reviewed as method improve both stability PSCs, an emphasis on chemical mechanism passivation. Various molecules are utilized passivants, such halides, Lewis acids bases, amines (some result in low-dimensional perovskite), polymers. Multifunctional promising group they capable passivating multiple defects various functional groups. This review categorizes these addition considering potential limitations each type passivant. Additionally, passivants for Sn-based PSCs discussed since this has poor photovoltaic performance compared their lead-based counterpart severe Lastly, future perspectives usage addressed provide direction upcoming research practical applications.
Language: Английский
Citations
3
Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111024 - 111024
Published: April 1, 2025
Language: Английский
Citations
0
ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 26, 2024
Language: Английский
Citations
1
Fundamental Research, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 1, 2024
Language: Английский
Citations
0