Pyrrolidinium Derivative‐Based Ionic Liquid Achieves Defect Passivation for Efficient Perovskite Solar Cells Exceeding 23% DOI

Xueni Shang,

Zijie He,

Jike Ding

и другие.

Solar RRL, Год журнала: 2024, Номер 8(8)

Опубликована: Март 13, 2024

In the rapidly developing field of photovoltaics, organic–inorganic metal halide perovskites are outstanding for their exceptional power conversion efficiencies (PCE), exceeding 26%. However, full potential these materials is often undermined by prevalence defects within structure and at grain surfaces, leading to significant nonradiative recombination losses. To meet this critical challenge, study introduces a novel strategy involving pyrrolidinium derivative tetrafluoroborate ionic liquid, specifically 2‐pyrrolidin‐1‐ium‐1‐ethylammonium (PyE(BF 4 ) 2 ), as an additive in perovskite precursor. This approach aims meticulously control crystallization processes effectively passivate on surface boundaries perovskite. The formation N─H…I − hydrogen bonds strong interactions, PyE(BF not only stabilizes [PbI 6 ] 4− framework but also optimizes valence band alignment with hole transport layer. Empirical results demonstrate that solar cells modified have achieved notable PCE 23.80% remarkable stability 1300 h under standard testing protocols (ISOS‐V‐1). findings emphasize transformative multifunctional liquids enhancing performance durability perovskite‐based photovoltaic devices, marking step forward pursuing sustainable efficient energy solutions.

Язык: Английский

Two-Dimensional Metal Halide Perovskites Created by Binary Conjugated Organic Cations for High-Performance Perovskite Photovoltaics DOI

Lening Shen,

Haodong Wu,

Zikun Cao

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(15), С. 19318 - 19329

Опубликована: Апрель 5, 2024

Studies indicated that two-dimensional (2D) metal halide perovskites (MHPs) embodied with three-dimensional (3D) MHPs were a facile way to realize efficient and stable perovskite solar cells (PSCs) photodetectors (PPDs). Here, high-performance PSCs PPDs, which are based on 2D/3D bilayer thin films, where the 2D created by binary conjugated organic cations, reported. Systemically studies reveal above novel films possess an enlarged crystal size, balanced charge transport, reduced carrier recombination, smaller charge-transfer resistance, accelerated charge-extraction process compared single cation. As result, film exhibit power conversion efficiency of 22.76%. Moreover, unencapsulated dramatically enhanced stability those In addition, PPDs projected detectivity 1016 cm Hz1/2/W linear dynamic range 108 dB at room temperature. Our indicate development cation-based incorporated 3D is simple method PPDs.

Язык: Английский

Процитировано

4
Benzophenone: A Small Molecule Additive for Enhanced Performance and Stability of Inverted Perovskite Solar Cells DOI
Hytham Elbohy, Hiroo Suzuki, Takeshi Nishikawa

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(38), С. 45177 - 45189

Опубликована: Сен. 12, 2023

In this study, we investigated the impact of benzophenone (BP), a small molecule additive, on performance and stability inverted perovskite solar cells (PSCs). Specifically, introduced BP into precursor solution FAPbI3 to fabricate PSCs with an ITO/PEDOT:PSS/BP:FAPbI3/PCBM/C60/PCB/Ag architecture. The incorporation optimum concentration 2 mg mL–1 significantly enhanced power conversion efficiency (PCE) PSC from 13.12 18.84% negligible hysteresis. Notably, BP-based retained ∼90% their initial PCE after being stored in ambient air 30% relative humidity at 25 °C for 700 h. contrast, control devices showed rapid degradation, retaining only value within 300 h under same conditions. We attributed superior grain boundary passivation film. improvement was mainly intermolecular interaction between O-donor Lewis base material both Pb2+ FA+ FAPbI3. This effectively suppresses trap-assisted recombination promotes δ-phase photoactive stable α-phase Overall, our findings suggest that is promising additive improving PSCs.

Язык: Английский

Процитировано

10
Performance Optimization of Perovskite Solar Cells via Fluorinated Carbonyl Additives DOI

Tianhe Dong,

Jing Liao,

Haijin Li

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Perovskite solar cells (PSCs) have emerged as a promising photovoltaic technology due to their long carrier diffusion lengths, tunable bandgaps, and high light absorption coefficients. However, instability remains significant barrier commercialization. In this study, we introduce two carbonyl small molecule additives with varying fluorine atom counts: 4,5-difluoro-phthalic anhydride (2FPA) tetrafluorophthalic (4FPA). The atoms groups interact passivate defects in the perovskite structure. strong interaction between 4FPA facilitates slow crystal growth effective defect passivation, significantly suppressing nonradiative recombination enhancing transport efficiency. Consequently, power conversion efficiency (PCE) of PSCs incorporating has improved from 21.49 23.21%. Additionally, additive FA+ form hydrogen bonds coordinate Pb2+, thereby device stability. unencapsulated conditions, after approximately 1000 h ambient air 50 60% humidity, retains 87% its initial

Язык: Английский

Процитировано

0
Accelerating Ionic Liquid Research in Perovskite Solar Cells through Machine Learning:Opportunities and Challenges DOI Creative Commons
Jiazheng Wang, Qiang Lou, Zhengjie Xu

и другие.

Materials Today Electronics, Год журнала: 2025, Номер unknown, С. 100143 - 100143

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Synergizing MAPbI3–xClx-Based Solar Cells with Columnar Mesogenic Interfacial Layers for Superior Efficiency DOI
Asmita Shah,

Saranrat Asamo,

Pongthep Prajongtat

и другие.

ACS Applied Electronic Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

Язык: Английский

Процитировано

0
Multifunctional Biguanide Salts as Efficient Defect Passivators for High-Performance Inverted Perovskite Solar Cells DOI

Huxue He,

Yong Zhu,

Xiong Chang

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 27, 2025

Язык: Английский

Процитировано

0
Multidimensional Modulation via Tailored Covalent Organic Frameworks Enables Stable Inverted Perovskite Solar Cells with 26.21% Efficiency DOI

Tianzhou Yin,

Zimin Zhang,

Hualin Wu

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

Abstract Despite the remarkable advancements in inverted perovskite solar cells, their commercialization remains hindered by critical bottlenecks efficiency and stability stemming from inadequate crystallization unfavorable interfacial states. Herein, for first time, a judiciously designed hydrazine‐linked covalent organic framework (COF) with long alkane phosphate branch chains, named 12‐SD‐COF, is synthesized integrated into precursor to achieve multidimensional regulation of crystallization, defect states, charge separation synergistically. It found that 12‐SD‐COF featuring periodic pores, large planar structure, abundant binding groups extruded solution onto buried interface, surface, grain boundaries, facilitating oriented while eliminating defects perovskites, thereby yielding high‐quality crystals suppressed non‐radiative recombination. Simultaneously, synergistically facilitated p‐type doping‐optimized energy level alignment induced intramolecular electric field, ultimately achieving an exceptional power conversion (PCE) 26.21%, highest yet reported COF‐modified. Impressively, non‐encapsulated resultant device delivers greatly improved stabilities, maintaining over 92% initial PCE after being aged under 85 °C continuous heating stress 800 h, 1000 h 50±3% relative humidity air, 1200 1‐sun illumination, respectively.

Язык: Английский

Процитировано

0
Chemical Bridge-Mediated Heterojunction Electron Transport Layers Enable Efficient and Stable Perovskite Solar Cells DOI
Pramila Patil, Ashakiran Maibam,

Sushil S. Sangale

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(24), С. 29597 - 29608

Опубликована: Июнь 8, 2023

Perovskite solar cells (PSCs) emerged as potential photovoltaic energy-generating devices developing in recent years because of their excellent properties and ease processing. However, PSCs are still reporting efficiencies much lower than theoretical limits owing to various losses caused by the charge transport layer perovskite. In this regard, herein, an interface engineering strategy using functional molecules chemical bridges was applied reduce loss heterojunction electron layer. As a layer, ethylenediaminetetraacetic acid (EDTA) introduced between PCBM ZnO result, EDTA simultaneously formed bonds with serve bridge connecting two. DFT analyses revealed that can act ZnO, passivate defect sites, improve transfer. Optoelectrical analysis proved bridge-mediated transfer (CBM-CT) provides more efficient interfacial reducing trap-assisted recombination at ETL interfaces, thereby improving device performance. The PSC exhibited high PCE 21.21%, almost no hysteresis, stability both air light.

Язык: Английский

Процитировано

9
Chirality-Induced Crystallization and Defect Passivation of Perovskites: Toward High-Performance Solar Cells DOI
Wenting Wu, Qiaoyun Chen,

Ji Cao

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(13), С. 16340 - 16350

Опубликована: Март 21, 2024

As an additive for perovskites, in addition to functional groups, the steric configuration of molecules is worthy consideration because it influences perovskite crystallization, thus determining whether defect passivation effective without any side effects. In this work, chiral l- and d-pyroglutamic acid (l-PA d-PA) were chosen as additives passivators reveal reasons differences between amino acids with different configurations. Functional such C═O groups N–H l-PA d-PA, can passivate defects. However, exhibited a more distorted configuration, while d-PA was planar, leading distances two groups. Taking Pb–Pb bond length reference, shorter distance distorts lattice structure, which results poor device stability. Conversely, similar promoted preferred orientational growth perovskite. Finally, d-PA-doped accomplished excellent efficiency 24.11% improved open-circuit voltage 1.17 V. Furthermore, unencapsulated maintained at 93% N2 than 3000 h 74% after 500 operation maximum power point tracking under continuous illumination.

Язык: Английский

Процитировано

3
Enhanced Performance and Stability of Perovskite Solar Cells Through Surface Modification with Benzocaine Hydrochloride DOI

Z.Y Chen,

Shuguang Cao,

Shizi Luo

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(38), С. 50706 - 50716

Опубликована: Сен. 16, 2024

Current development of inverted p-i-n perovskite solar cells (PSCs), with nickel oxide as the hole transport layer, is progressing toward lower net costs, higher efficiencies, and superior stabilities. Unfortunately, high density defect-based traps on surface films significantly limits photoelectric conversion efficiency operational stability cells. Finding cost-effective interface modifiers crucial for further commercial PSCs. In present work, we report a passivation strategy using multifunctional molecule, benzocaine hydrochloride (BHC), which shown to reduce defect enhance photovoltaic performance resultant It has been revealed that BHC strongly interacts precursor components triggers evolution absorber film morphology enables improved energy level alignment, thus promoting charge carrier extraction. These properties are beneficial improving open-circuit voltage (

Язык: Английский

Процитировано

3