Nature Communications, Год журнала: 2025, Номер 16(1)
Опубликована: Янв. 2, 2025
Self-assembled monolayers (SAMs) have displayed unpredictable potential in efficient perovskite solar cells (PSCs). Yet most of SAMs are largely suitable for pure Pb-based devices, precisely developing promising hole-selective contacts (HSCs) Sn-based PSCs and exploring the underlying general mechanism fundamentally desired. Here, based on prototypical donor-acceptor SAM MPA-BT-BA (BT), oligoether side chains with different length (i.e., methoxy, 2-methoxyethoxy, 2-(2-methoxyethoxy)ethoxy group) were custom-introduced benzothiadiazole unit to produce target acronyms MPA-MBT-BA (MBT), MPA-EBT-BA (EBT), MPA-MEBT-BA (MEBT), respectively, acting as HSCs Sn-Pb all-perovskite tandems. The introduction enables effectively accelerate hole extraction, regulate crystal growth passivate surface defects perovskites. In particular, benefiting from enhanced film quality suppressed interfacial non-radiative recombination losses, EBT-tailored LBG devices yield a champion efficiency 23.54%, enabling 28.61% monolithic tandems an impressive VOC 2.155 V excellent operational stability well 28.22%-efficiency 4-T development is highly desirable. authors report self-assembled achieve operationally stable
Язык: Английский
Процитировано
10In-situ passivation the defects both interfaces for n-i-p perovskite solar cells on regulatory electron-donating units of D-π-A dyes
Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161053 - 161053
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
4Enhancing Performance of NiOx‐Based Inverted Perovskite Solar Cells: Advances in Buried Interface Material Modification Strategy
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
3Dual functionality of charge extraction and interface passivation by self-assembled monolayers in perovskite solar cells
Energy & Environmental Science, Год журнала: 2024, Номер 17(19), С. 6974 - 7016
Опубликована: Янв. 1, 2024
This review overviews the challenges at buried interface of PSCs, defect passivation capabilities SAMs, and its effectiveness compared to other passivating agents.
Язык: Английский
Процитировано
14Reinforcing Coverage of Self‐assembled Monomolecular Layers for Inverted Perovskite Solar Cells with Efficiency of 25.70%
Angewandte Chemie International Edition, Год журнала: 2024, Номер unknown
Опубликована: Дек. 30, 2024
Abstract Self‐assembled monolayers (SAM) as hole transport layers have been widely used in high‐efficiency inverted perovskite solar cells (PSCs) exceeded 26 %. However, the poor coverage and non‐uniform distribution on substrate of SAM further restrict improvement device performance. Herein, we utilize mixed strategy via MeO‐2PACz along with perfluorotripropylamine (FC‐3283) to improve coverage, aiming accelerate carrier transport, promote growth, regulate surface energy levels suppress nonradiative recombination. The champion mixed‐SAM achieves an efficiency 25.70 % (certified 25.6 %) long‐term stability (maintained initial 90 after 1000 h 180 under ISOS‐L‐1 ISOS‐L‐2).
Язык: Английский
Процитировано
8Defect Engineering at Buried Interface of Perovskite Solar Cells
Small Methods, Год журнала: 2024, Номер unknown
Опубликована: Июнь 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
Язык: Английский
Процитировано
7Post‐Assembled Dipole Benzoic Acids Modified Me‐4PACz for Efficient and Stable Inverted Perovskite Solar Cells
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Фев. 16, 2025
Abstract Self‐assembled monolayers (SAMs), particularly those molecules composed of carbazole and phosphonic acid, are widely employed as effective hole‐selective layer (HSL) in inverted perovskite solar cells (PSCs). However, the insufficient chemical bond formation with metal oxides (ITO) self‐aggregation solvents acid SAM led to non‐uniform HSL, which turn affect power conversion efficiency (PCE) stability PSCs. Herein, a series benzoic materials (BAs), including p‐fluorobenzoic (FBA) p‐methylbenzoic (MBA), used post‐assembly effectively fill voids between [4‐(3,6‐dimethyl‐9H‐carbazole‐9‐yl)butyl]phosphonic (Me‐4PACz) form denser facilitates passivation buried interface. In addition, post‐assembled BAs different dipole moments can adjust work function Me‐4PACz facilitating transport extraction charge carriers. Consequently, PSCs based on Me‐4PACz/FBA HSL realize champion PCE 25.58%. Moreover, unencapsulated devices maintain 82% 94% after 800 h outdoor storage (RH≈60%) 2000 glove box, respectively. This technique enhances both device, blazing simple pathway for further development
Язык: Английский
Процитировано
1Multi-functional interface modification and/or passivation materials in inverted perovskite solar cells
Surfaces and Interfaces, Год журнала: 2025, Номер unknown, С. 106084 - 106084
Опубликована: Фев. 1, 2025
Язык: Английский
Процитировано
1Micromolecule Postdeposition Process for Highly Efficient Inverted Perovskite Solar Cells
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер 17(9), С. 14269 - 14277
Опубликована: Фев. 24, 2025
Inverted perovskite solar cells (PSCs) have achieved great development, contributed by the advance of self-assembled monolayer (SAM) hole-transporting layers (HTLs) due to their distinctive molecular designability. However, SAM HTLs still present challenges achieving a compact and ordered surface, resulting in vacancies defects at interface as well adversely affecting growth perovskites. In this work, we propose micromolecule postdeposition process design HTL form high-quality perovskites achieve highly efficient inverted PSCs. We introduce etidronic acid (EA) fill reduce improve growing The EA can anchor substrate through P-OH anchors, occupying left MeO-4PACz, simultaneously create interaction with P═O C-OH functional groups. effectively fills reduces interface, passivates perovskites, facilitates carrier transport. Consequently, champion PCE 24.42% is for target PSCs, which much higher than efficiency (20.08%) control. This research provides guided widely applicable strategy development further advances performance
Язык: Английский
Процитировано
1Buried Interface Passivation with 3,4,5-Trifluorophenylboronic Acid Enables Efficient and Stable Inverted Perovskite Solar Cells
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
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