Journal of Materials Chemistry A, Journal Year: 2023, Volume and Issue: 11(43), P. 23387 - 23396
Published: Jan. 1, 2023
A post-vapor treatment was developed to alleviate compressive strains in perovskite thin films grown by vapor–solid reaction. Perovskite solar cells based on these achieved an improved power conversion efficiency of over 22%.
Language: Английский
Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)
Published: Oct. 13, 2023
Perovskite solar cells (PSCs) are multilayer structures. The interface between electron transport layer and perovskite is the mechanical weakest point in flexible PSCs due to its low fracture energy. Herein, we develop a highly adhesive polyamide-amine-based hyperbranched polymers reinforce interface. energy improved from 1.08 2.13 J·m-2 by with groups dynamic hydrogen bond networks. polymer functionalized achieve superior power conversion efficiencies of 25.05% 23.86% for rigid devices, respectively. Furthermore, contains abundant intramolecular cavities that can capture Pb2+. Pb leakage after cell damage effectively suppressed. Our findings provide insights on designing layers towards high-efficiency, mechanical-stable environment-friendly cells.
Language: Английский
Citations
82
Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 14(6)
Published: Dec. 21, 2023
Abstract The field of solar systems has undergone rapid development with the emergence special material, perovskite. Perovskite's unique mechanism, defect tolerance, enabled perovskite cells (PSCs) to achieve high power conversion efficiencies (PCEs), and many studies on this subject have been conducted. “Defect tolerance” indicates that defects in are primarily generated at shallow‐energy level do not occur through nonradiative recombination. However, also well formed films shallow can transform into deep traps, leading long‐term stability issues. Therefore, controlling is essential for developing PSCs PCEs. causes diverse, patterns differ considerably, particularly depending location PSCs. In review, will be discussed review several methods passivating them different.
Language: Английский
Citations
51
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(23)
Published: March 26, 2024
Abstract Metal‐halide perovskite solar cells (PSCs) have emerged as a promising photovoltaic technology. Fabricating PSCs in ambient air can accelerate their low‐cost commercialization, since it remove the reliance on atmosphere‐controlled equipment. However, power conversion efficiency (PCE) of air‐fabricated still lags behind those fabricated glovebox. Here, based technology to fabricate high‐quality film air, compatible optimization is performed electron transport layer (ETL) further enhance performance PSCs. A soft‐templated deposition strategy proposed that utilizes tetrasodium glutamate diacetate (GLDA) finely regulate chemical bath process, leading an ideal SnO 2 ETL with no additive residual. Adopting this feature residual, molecular bridge using β‐guanidinopropionic acid (βA) constructed at buried interface (SnO /perovskite), which effectively enhances extraction and decreases losses. The resulting (0.08 cm ) achieve impressive PCE 25.74% (certificated 25.43%), highest among reported date. 24.61% 1 ‐PSCs also obtained, exhibiting scalable potential In addition, excellent operational stability these demonstrated.
Language: Английский
Citations
21
Solar RRL, Journal Year: 2023, Volume and Issue: 7(19)
Published: July 16, 2023
The power conversion efficiency (PCE) of organic–inorganic halide perovskite solar cells (PSCs) has increased rapidly in recent years, with the certified best single‐junction photovoltaics reaching an astounding PCE 26%. Formamidine (FA)‐based perovskites possess excellent photovoltaic properties and superior thermal stability, establishing them as one most promising materials for light absorption. However, issue phase instability black‐phase formamidinium lead iodide ( α ‐FAPbI 3 ) seriously impeded its commercialization process, strain found films being regarded a significant factor impacting stability PSCs. This article begins by examining sources characterization techniques related to perovskites. Subsequently, it outlines effects on FA‐based presents strategies modify lattice strain. Finally, potential engineering future is discussed. review aims clarify impact perovskite, determine methods enhance device performance, ultimately facilitate these materials.
Language: Английский
Citations
39
Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(8)
Published: Nov. 5, 2023
Abstract Tin oxide (SnO 2 ) is currently the dominating electron transport material (ETL) used in state‐of‐the‐art perovskite solar cells (PSCs). However, there are amounts of defects distributed at interface between ETL and to deteriorate PSC performance. Herein, a molecule bridging layer built by incorporating 2,5‐dichloroterephthalic acid (DCTPA) into SnO perovskites achieve better energy level alignment superior interfacial contact. The multifunctional molecular not only can passivate trap states Sn dangling bonds oxygen vacancies resulting improved conductivity extraction but also regulate crystal growth reduce defect‐assisted nonradiative recombination due its strong interaction with undercoordinated lead ions. As result, DCTPA‐modified PSCs champion power conversion efficiencies (PCEs) 23.25% 20.23% for an active area 0.15 cm device 17.52 mini‐module, respectively. Moreover, films based on DCTPA modification show excellent long‐term stability. unencapsulated target maintain over 90% initial PCE after 1000 h under ambient air. This strategy guides design methods improve performance .
Language: Английский
Citations
27
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 151162 - 151162
Published: April 9, 2024
Language: Английский
Citations
16
Small, Journal Year: 2024, Volume and Issue: 20(28)
Published: Feb. 11, 2024
Abstract Interface passivation through Lewis acid–base coordinate chemistry in perovskite solar cells (PSCs) is a universal strategy to reduce interface defects and hinder ion migration. However, the formation of covalent bonding demands strict directional alignment coordinating atoms. Undoubtedly, this limits selected range molecules, because successful molecular bridge between charge transport layer bottom needs well‐placed orientation. In study, it discovered that potassium ions can migrate hollow sites multiple iodine from form K‐I x ionic bonding, bonds without directionality support backbone rotation facilitate polar (carboxyl groups) chelating Pb at interface, finally forming closed‐loop structure. The synergy significantly reduces defects, changes electric field distribution, immobilizes resulting eliminating hysteresis effect enhancing performance PSCs. As result, corresponding devices achieve high efficiency exceeding 24.5% (0.09 cm 2 ), mini‐module with 21% (12.4 ). These findings provide guidelines for designing bridging strategies buried
Language: Английский
Citations
15
Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown
Published: March 29, 2024
Abstract The quality of the buried interface plays a key role in achieving high‐performance perovskite solar cells (PSCs). However, it is challenging to guarantee its on larger area, which pivotal for commercialization PSCs. Here, facile strategy developed modify SnO 2 /perovskite by incorporating L‐Aspartic acid monosodium salt (ASP‐Na) into colloidal dispersion. ASP‐Na with multidentate ligands can coordinate Sn form stable dispersion, inhibiting agglomeration nanoparticles at interface. In addition, coordination between and turn promotes uniform distribution ASP‐Na, facilitates effective passivation defects. Consequently, treatment improves device efficiency from 23.44% 25.47% (certified 25.02%) an aperture area 0.0797 cm without hysteresis enhances operation stability. mini‐module achieves 20.11% 18.30 , demonstrating potential scalability.
Language: Английский
Citations
14
Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(19), P. 6974 - 7016
Published: Jan. 1, 2024
This review overviews the challenges at buried interface of PSCs, defect passivation capabilities SAMs, and its effectiveness compared to other passivating agents.
Language: Английский
Citations
14
Advanced Science, Journal Year: 2024, Volume and Issue: 11(33)
Published: July 3, 2024
The buried interface between the electron transport layer (ETL) and perovskite plays a crucial role in enhancing power conversion efficiency (PCE) stability of n-i-p type solar cells (PSCs). In this study, chemical bath deposited (CBD) titanium oxide (TiO
Language: Английский
Citations
11