Journal of Power Sources, Journal Year: 2024, Volume and Issue: 629, P. 236058 - 236058
Published: Dec. 16, 2024
Language: Английский
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(16)
Published: Jan. 11, 2024
Abstract [4‐(3,6‐dimethyl‐9H‐carbazol‐9yl)butyl]phosphonic acid (Me‐4PACz) self‐assembled molecules (SAM) are an effective method to solve the problem of buried interface NiO x in inverted perovskite solar cells (PSCs). However, Me‐4PACz end group (carbazole core) cannot forcefully passivate defects at bottom film. Here, a Co‐SAM strategy is employed modify PSCs. doped with phosphorylcholine chloride (PC) form improve monolayer coverage and reduce leakage current. The phosphate ions (Cl − ) PC can inhibit surface defects. Meantime, quaternary ammonium Cl fill organic cations halogen vacancies film enable passivation. Moreover, promote growth crystals, collaboratively defects, suppress nonradiative recombination, accelerate carrier transmission, relieve residual stress Consequently, modified devices show power conversion efficiencies as high 25.09% well excellent device stability 93% initial efficiency after 1000 h operation under one‐sun illumination. This work demonstrates novel approach for enhancing performance PSCs by modifying on .
Language: Английский
Citations
91
ACS Nano, Journal Year: 2024, Volume and Issue: 18(16), P. 10688 - 10725
Published: April 11, 2024
Metal-halide perovskite solar cells (PSCs), an emerging technology for transforming energy into a clean source of electricity, have reached efficiency levels comparable to those commercial silicon cells. Compared with other types PSCs, inverted (IPSCs) shown promise regard commercialization due their facile fabrication and excellent optoelectronic properties. The interlayer interfaces play important role in the performance cells, not only affecting charge transfer transport, but also acting as barrier against oxygen moisture permeation. Herein, we describe summarize last three years studies that advantages interface engineering-based advances IPSCs. This review includes brief introduction structure working principle IPSCs, analyzes how affect IPSC devices from perspective photovoltaic device lifetime. In addition, comprehensive summary various engineering approaches solving these problems challenges including use interlayers, modification, defect passivation, others, is summarized. Moreover, based upon current developments breakthroughs, fundamental perspectives on future pathways are provided innovation design next-generation
Language: Английский
Citations
15
Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(33)
Published: April 10, 2024
Abstract Herein, we synthesized two donor‐acceptor (D‐A) type small organic molecules with self‐assembly properties, namely MPA‐BT‐BA and MPA‐2FBT‐BA, both containing a low acidity anchoring group, benzoic acid. After systematically investigation, it is found that, the fluorination, MPA‐2FBT‐BA demonstrates lower highest occupied molecular orbital (HOMO) energy level, higher hole mobility, hydrophobicity stronger interaction perovskite layer than that of MPA‐BT‐BA. As result, device based‐on displays better crystallization morphology larger grain size less non‐radiative recombination. Consequently, using as transport material achieved power conversion efficiency (PCE) 20.32 % remarkable stability. being kept in an N 2 glove box for 116 days, unsealed PSCs’ retained 93 its initial PCE. Even exposed to air relative humidity range 30±5 43 PCE remained above 91 condition. This study highlights vital importance fluorination strategy combined group SAMs, offering pathway achieve efficient stable PSCs.
Language: Английский
Citations
10
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)
Published: Aug. 13, 2024
Abstract Interfacial defects between perovskite and adjacent charge transport layers present a significant obstacle, hindering the enhancement of power conversion efficiency (PCE) stability in solar cells (PSCs). To address this challenge, dual‐interface modification is proposed to aim at improving performance mixed‐halide PSCs. Specifically, hole‐collecting side modified with 5‐Aminopyridine‐2‐carboxylic Acid (APC), while electron‐collecting 2‐thiopheneethylammonium chloride (TEACl). The multifunctional APC enhances transfer by tailoring interface poly(triarylamine) (PTAA) through multiple bonding interactions, thereby suppressing interfacial nonradiative recombination. Density functional theory studies reveal that on surface induces uniform adsorption energy, promoting homogenous crystallization without residual stress. Additionally, interlayer eliminates localized edge states induced iodine vacancies near conduction band edge. Further improvement device achieved passivating top TEACl, leading well‐matched energy bands reduced vacancy trap states. As result, champion cell achieves PCE 24.87% an open‐circuit voltage 1.188 V. Furthermore, improves thermal due enhanced ion‐migration activation energy.
Language: Английский
Citations
9
Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 5, 2025
Abstract The interfaces of each layer in perovskite solar cells (PSCs) have a significant impact on the charge transfer and recombination. Especially, interface between hole transport (HTL) p‐i‐n type PSCs significantly affects contact characteristics HTL perovskite, hindering further improvements performance stability. Herein, small molecule 9‐Fluorenylmethoxycarbonyl chloride (9‐YT) is introduced as bridge for PSCs, which enhances interaction self‐assembly molecules (SAMs) perovskite. conjugated backbone 9‐YT can interact with SAM (MeO‐2PACz) by π–π stacking reaction. Moreover, also improves interfacial through strong interactions where carbonyl groups Cl atoms uncoordinated Pb 2+ layer. incorporation demonstrated to markedly enhance extraction at perovskite/hole interface, optimize energy level alignment, mitigate recombination, passivate defects Finally, device treated achieves power conversion efficiency (PCE) 24.82%. At same time, still maintain 92.6% original PCE after long‐term stability test 1200 h.
Language: Английский
Citations
1
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(12), P. 15605 - 15616
Published: March 13, 2024
Improving the quality of buried interface is decisive for achieving stable and high-efficiency perovskite solar cells. Herein, we report engineering by using dipolar 2,4-difluoro-3,5-dichloroaniline (DDE) as adhesive between titanium dioxide (TiO2) MAPbI3. By manipulation anchoring groups DDE, this molecule not only passivated defects TiO2 but also optimized energy level alignment. Furthermore, film on modified surface showed improved crystallinity, released residual stress, reduced trap states. Therefore, these benefits directly contribute to a power conversion efficiency up 22.10%. The unencapsulated device retained 90% initial efficiencies (PCE) after continuous light illumination 1000 h 93% PCE exposure air with relative humidity 30–40% over 3000 h. Moreover, performance PSCs based FA0.15MA0.85PbI3 has increased from 20.48 23.51%. Our results demonstrate effectiveness universality halogen-substituted arylamine enhancing PSC performance.
Language: Английский
Citations
6
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(2), P. 2232 - 2243
Published: Jan. 10, 2024
The optimization of interfacial properties between the perovskite layer and electron-transporting (ETL) is always a vital approach to reduce defects for improving photovoltaic performance solar cells (PSCs). Herein, nanomaterials tunable photoluminescent nitrogen-doped graphene quantum dots (TP-N-GQDs) were prepared though facile solid-phase microwave-assisted (SPMA) method in presence citric acid by adding urea as nitrogen precursor. Leveraging synergistic effect N-GQDs along with property at interface PSCs proved be an efficient strategy enhancing light-harvesting capability facilitating charge transportation simultaneously, which leads overall improvement PSC performance. Moreover, electron-rich pyridinic within TP-N-GQDs acted Lewis base, coordinating Pb2+ ions forming coordination bonds sharing electron pairs, thereby decreasing density nonradiative recombination photogenerated carriers. Consequently, through doping ratio TP-N-GQDs, areas 0.09 1 cm2 achieved maximum power conversion efficiencies (PCEs) 21.98 17.12%, respectively. Additionally, TP-N-GQD passivation significantly enhanced long-term stability device. unencapsulated TP-N-GQD-modified device could sustain about 83% its initial PCE afterward 30 days storage air (25 ± 5 °C, RH 25 5%).
Language: Английский
Citations
5
Energy Materials and Devices, Journal Year: 2024, Volume and Issue: 2(1), P. 9370029 - 9370029
Published: March 1, 2024
Small-molecule ionic liquids (ILs) are frequently employed as efficient bulk phase modifiers for perovskite materials. However, their inherent characteristics, such high volatility and ion migration properties, pose challenges in addressing the stability issues associated with solar cells (PSCs). Here, we design a poly (IL) multiple active sites, named poly[4-styrenesulfonyl(trifluoromethylsulfonyl)imide]pyridine (P[STFSI][PPyri]), an additive of The S=O sulfonyl group chelates uncoordinated Pb2+ forms hydrogen bonds organic cations perovskite, suppressing volatilization cations. N+ pyridine can fix halide ions through electrostatic interaction I−, Br− ions to prevent migration. P[STFSI][PPyri] demonstrates ability to passivate defects suppress non-radiative recombination PSCs. Additionally, it facilitates fixation ions, thereby enhancing both photoelectric performance device. Consequently, introduction dopant devices results champion efficiency 24.62%, demonstrating outstanding long-term operational stability, encapsulated device maintaining 87.6% its initial even after 1500 hours continuous maximum power point tracking. This strategy highlights promising potential effective PSCs, providing combination stability.
Language: Английский
Citations
5
ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(9), P. 3996 - 4003
Published: April 24, 2024
Although poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA) has been widely applied in inverted perovskite solar cells, inherent poor conductivity and energy level mismatch seriously constrain development of the power conversion efficiency (PCE) PTAA-based cells. Herein, a high-hole-mobility small molecule α-6T is employed as PTAA solution dopant for cells to solve above issues. significantly increases hole mobility films decreases barrier at PTAA/perovskite interface, leading enhanced carrier extraction suppressed recombination. Furthermore, wettability film also improved. As result, doped device shows champion PCE 22.23%, which observably higher than 20.24% control device. What's more, unencapsulated devices maintain ∼80% initial after being stored under air conditions 1500 h. This strategy provides simple way fabricate high-performance
Language: Английский
Citations
5
Small Methods, Journal Year: 2024, Volume and Issue: unknown
Published: June 21, 2024
Abstract Perovskite solar cells (PSC) have developed rapidly since the past decade with aim to produce highly efficient photovoltaic technology at a low cost. Recently, physical and chemical defects buried interface of PSC including vacancies, impurities, lattice strain, voids are identified as next formidable hurdle further advancement performance devices. The presence these has unfavorably impacted many optoelectronic properties in PSC, such band alignment, charge extraction/recombination dynamics, ion migration behavior, hydrophobicity. Herein, broad but critical discussion on various essential aspects related is provided. In particular, existing surface underlying transporting layer (CTL) bottom perovskite film initially elaborated. situ ex characterization approaches adopted unveil hidden elucidated determine their influence efficiency, operational stability, photocurrent–voltage hysteresis PSC. A myriad innovative strategies defect management CTL, introduction passivation materials, strain engineering, morphological control used address also systematically catalyze development more efficient, reliable, commercially viable
Language: Английский
Citations
5