Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180207 - 180207
Опубликована: Апрель 1, 2025
Язык: Английский
Small Methods, Год журнала: 2025, Номер unknown
Опубликована: Фев. 25, 2025
Self-assemble monolayers (SAMs) have become state-of-the-art hole-selective contacts for high-efficiency perovskite-based solar cells due to their easy processing, passivation capability, and low parasitic absorption. Nevertheless, the deposition of SAMs with a monolayer thickness high packing density on metal oxide substrates, critical challenges persist. To overcome these, study focuses impact annealing temperature - an intrinsic yet so far unexplored process parameter during formation SAMs. By performing in situ angle-resolved X-ray photoelectron spectroscopy combined advanced data analysis routines, it is revealed that increasing reduces formed SAM layer from multilayer stack ≈5 nm at 100 °C (conventional employed literature) 150 °C. Furthermore, denser adsorption surface promoted temperatures, which enhances interfacial SAM/perovskite quality. With this strategy, 1.3%abs power conversion efficiency (PCE) increment obtained fully-textured perovskite/silicon tandem cells, improved reproducibility, champion device approaching 30% PCE. This advances understanding presents promising strategy further progress cells.
Язык: Английский
Процитировано
3
Journal of the American Chemical Society, Год журнала: 2025, Номер 147(9), С. 8004 - 8011
Опубликована: Фев. 18, 2025
Self-assembled monolayer molecules have been widely employed as interfacial transport materials in inverted perovskite solar cells (PSCs), demonstrating high efficiency and improved device stability. However, self-assembling (SAM) often suffer from aggregation weak interactions with the layer, resulting inefficient charge transfer significant energy losses, ultimately limiting power conversion long-term stability of cells. In this work, we developed a series novel skeleton-matching carbazole isomer SAMs based on following key design principles: (1) introducing benzene ring structure to distort molecular skeleton SAM, thereby preventing achieving uniform distribution fluorine-doped tin oxide (FTO) substrates; (2) strategically incorporating methoxy groups onto at different positions (ortho, meta, para). These functional not only increase anchoring points layer but also fine-tune dipole moment. Among SAMs, m-PhPACz exhibits most favorable properties, maximum moment 2.4 D an O-O distance that aligns excellently diagonal lead ions adjacent lattice, enhancing SAM-perovskite interactions, facilitating efficient extraction, improving As result, new SAM-based PSCs achieved impressive 26.2%, 12.9% improvement. Moreover, devices demonstrated outstanding photothermal stability, retaining 96% their initial PCE after 1000 h 85 °C maintaining 90% 300 UV-light exposure.
Язык: Английский
Процитировано
2
Small, Год журнала: 2025, Номер unknown
Опубликована: Янв. 5, 2025
Improving the interface characteristics between hole-transport layer (HTL) and perovskite absorber is crucial for achieving maximum efficiency in inverted solar cells (PSCs). This paper presents an effective functional compensation (FCL) composed of benzothiophene derivatives, particularly 5-(trifluoromethyl)-1-benzothiophene-2-carboxylic acid (TFMBTA); this introduced MeO-2PACz HTL to improve interfacial them. FCL improves charge transfer, hole extraction, deposition by improving surface morphology optimizing energy level alignment. The groups TFMBTA effectively passivate defects. As a result, introduction markedly reduces non-radiative recombination at layer. MeO-2PACz-based PSCs with demonstrated impressive peak power conversion 23.85%, accompanied substantially enhanced open-circuit voltage (Voc), fill factor (FF), long-term stability. Similarly, introducing PEDOT:PSS both stability PSCs, demonstrating universality FCLs across different types HTLs.
Язык: Английский
Процитировано
1
Materials Today Electronics, Год журнала: 2025, Номер unknown, С. 100138 - 100138
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
1
Small, Год журнала: 2025, Номер 21(11)
Опубликована: Фев. 2, 2025
Abstract The self‐assembling molecule 2PACz tends to aggregate in thin films, which negatively impacts the performance of organic solar cells (OSCs) when used as a hole‐transporting layer (HTL), particularly large‐area devices. To overcome this, binary conjugated molecular system incorporating carbazole (Cz), shares similar backbone with 2PACz, is introduced. Despite strong aggregation tendencies and Cz individually, their blend forms homogeneous films due hydrogen bonding interactions between two molecules. These suppress aggregation, resulting smooth well‐ordered films. Devices modified HTL show significantly enhanced charge transfer, achieving power conversion efficiency (PCE) 20.10%, fill factor 80.3%, short‐circuit current 28.98 mA cm − 2 , outperforming those unmodified 2PACz. Large‐area devices (1.0 ) achieve record‐high PCE 18.56% retention rate 92.7%, compared 43% for findings highlight potential carbazole‐modified improve both stability OSCs, offering promising strategy high‐performance development.
Язык: Английский
Процитировано
1
Journal of Materials Chemistry A, Год журнала: 2025, Номер unknown
Опубликована: Янв. 1, 2025
Compositional and interfacial engineering for improved light stability of flexible wide-bandgap perovskite solar cells a highly efficient all-perovskite tandem device.
Язык: Английский
Процитировано
1
Small, Год журнала: 2025, Номер unknown
Опубликована: Фев. 13, 2025
Abstract Inverted perovskite solar cells (PSCs) have become a current research hotspot due to their advantages such as low‐temperature preparation, low hysteresis, and compatibility with stacked other cells. NiO x , metal oxide hole transport layer material, is widely used in inverted PSCs. However, challenges high defect density, intrinsic conductivity, unfavorable valence band mismatch at the /perovskite interface hinder further improvement of device performance. Therefore, enhancing buried between layers crucial for optimizing This review systematically categorizes materials based on types, including organic small molecules, self‐assembled monolayers (SAMs), polymers, salts. Additionally, it incorporates strategies, introduction low‐dimensional materials, doping, advancements deposition technology. By reviewing technologies past 2 years, this article aims provide insights achieve more efficient stable ‐based Finally, we also discuss future directions challenges.
Язык: Английский
Процитировано
1
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 7, 2025
The p-i-n type perovskite solar cells with a nickel oxide (NiOx) hole transport layer in combination self-assembled monolayers (SAMs) have high power conversion efficiency (PCE) of over 26%. surface properties the SAM significant impact on growth and crystallization film. In meanwhile, defects formed during thermal annealing at interface would act as charge recombination centers, decreasing device performance stability. To address these issues, this work introduces 3,4,5-trifluorophenylboronic acid (3,4,5-3FPBA) interfacial modification to improve buried that enable better With 3,4,5-3FPBA layer, based composition Cs0.05(FA0.98MA0.02)0.95Pb(I0.95Br0.05)3, increased from 21.99% 24.02%. A similar improvement was observed for Cs0.05FA0.82MA0.13Pb(I0.85Br0.15)3, where 21.87% 22.76%. universality has been confirmed. addition, resulting showed improved stability, maintaining 75% its initial after 500 h continuous heating 85 °C unencapsulated devices.
Язык: Английский
Процитировано
1
Small Methods, Год журнала: 2024, Номер unknown
Опубликована: Авг. 29, 2024
The perovskite solar cells (PSCs) technology translated on flexible substrates is in high demand as an alternative powering solution to the Internet of Things (IOTs). An efficiency ∼26.1% rigid and ∼25.09% has been achieved for PSCs. Further, it also reported that F-PSC modules have a surface area ∼900 cm
Язык: Английский
Процитировано
5
Advanced Materials, Год журнала: 2024, Номер unknown
Опубликована: Окт. 23, 2024
Abstract Perovskite light‐emitting diodes (Pero‐LEDs) have garnered significant attention due to their exceptional emission characteristics, including narrow full width at half maximum, high color purity, and tunable colors. Recent efficiency operational stability advancements positioned Pero‐LEDs as a promising next‐generation display technology. Extensive research review articles on the compositional engineering defect passivation of perovskite layers substantially contributed development multi‐color high‐efficiency Pero‐LEDs. However, crucial aspect charge transport layer (CTL) modulation in remains relatively underexplored. CTL not only impacts carrier injection balance but also plays critical role passivating surface, blocking ion migration, enhancing crystallinity, improving light extraction efficiency. Therefore, optimizing CTLs is pivotal for further Pero‐LED performance. Herein, this discusses roles categorizes both reported potential materials. Then, various optimization strategies are presented, alongside an analysis selection criteria high‐performance Finally, summary outlook advance performances provided.
Язык: Английский
Процитировано
5