Highly Stable Perovskite Solar Cells with Protective Layers Obtained via Interfacial Modification DOI
Yulin Wang,

Hongbing Ran,

Yüe Zhao

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: 8(8)

Published: March 23, 2024

Currently, achieving both high efficiency and long‐term stability is crucial for the successful application of perovskite solar cells (PSCs). Grain boundary (GB) defects significantly impact PSCs, passivating these GBs remains a major challenge. Herein, surfactant dodecyltrimethylammonium chloride (DTAC) dissolved in low‐polarity chlorobenzene (CB) at 58 °C to modify interface MAPbI 3 film, DTAC reacts with film surface generate protective layer that can be covered on grains, effectively reducing expose GBs. Additionally, hydrophobic alkyl chains DTA + strong chemical bond between Cl − Pb 2+ ions further enhance resistance heat, moisture, oxidation. Due passivation iodine vacancy defects, photo‐stability unencapsulated devices improved. By crystals, power conversion low‐temperature carbon‐based PSCs treated by 15.03% compared 13.97% control device. This study offers another referable strategy enhancing thermal, light, oxygen materials while considering photovoltaic performance devices.

Language: Английский

Direct linearly polarized electroluminescence from perovskite nanoplatelet superlattices DOI Creative Commons
Junzhi Ye, Aobo Ren, Linjie Dai

et al.

Nature Photonics, Journal Year: 2024, Volume and Issue: 18(6), P. 586 - 594

Published: Feb. 23, 2024

Abstract Polarized light is critical for a wide range of applications, but usually generated by filtering unpolarized light, which leads to substantial energy losses and requires additional optics. Here we demonstrate the direct emission linearly polarized from light-emitting diodes made CsPbI 3 perovskite nanoplatelet superlattices. The use solvents with different vapour pressures enables self-assembly nanoplatelets fine control over their orientation (either face-up or edge-up) therefore transition dipole moment. As result highly uniform alignment nanoplatelets, as well strong quantum dielectric confinement, large exciton fine-structure splitting achieved at film level, leading pure red electroluminescence exhibiting high degree polarization 74.4% without any photonic structures. This work demonstrates potential promising source opening up development next-generation three-dimensional displays optical communications versatile, solution-processable system.

Language: Английский

Citations

29
A Multifunctional Dye Molecule as the Interfacial Layer for Perovskite Solar Cells DOI
Jianlin Chen, Xianfu Zhang, Xuepeng Liu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(17), P. 22079 - 22088

Published: April 19, 2024

In perovskite solar cells (PSCs), defects in the interface and mismatched energy levels can damage device performance. Improving quality is an effective way to achieve efficient stable PSCs. this work, a multifunctional dye molecule, named ThPCyAc, was designed synthesized be introduced perovskite/HTM interface. On one hand, various functional groups on acceptor unit act as Lewis base reduce defect density suppress nonradiative combinations. other stepwise energy-level alignment caused by ThPCyAc decreases accumulation of carriers for facilitating charge extraction transmission. Therefore, based devices exhibit elevated open-circuit voltage fill factor, resulting best power conversion efficiency (PCE) 23.16%, outperforming control sample lacking layer (PCE = 21.49%). Excitingly, when attempting apply it self-assembled inverted devices, still exhibits attractive behavior. It worth noting that these results indicate molecules have great potential developing materials obtain higher-performance

Language: Английский

Citations

20
Microstrain and Crystal Orientation Variation within Naked Triple-Cation Mixed Halide Perovskites under Heat, UV, and Visible Light Exposure DOI Creative Commons

Yuqin Zou,

Johanna Eichhorn, Jiyun Zhang

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(2), P. 388 - 399

Published: Jan. 8, 2024

The instability of perovskite absorbers under various environmental stressors is the most significant obstacle to widespread commercialization solar cells. Herein, we study evolution crystal structure and microstrain present in naked triple-cation mixed CsMAFA-based films heat, UV, visible light (1 Sun) conditions by grazing-incidence wide-angle X-ray scattering (GIWAXS). We find that gradient distributed along surface normal films, decreasing from upper regions deeper within film. Moreover, treatments do not interfere with crystalline orientations annealed polycrystalline films. However, when subjected exhibit a rapid component decomposition, induced phase separation ion migration. Conversely, exposure UV 1 Sun soaking, undergo self-optimization during degradation develop into smoother reduced potential fluctuations.

Language: Английский

Citations

16
Alcohol-dispersed polymer complex as an effective and durable interface modifier for n-i-p perovskite solar cells DOI

Chang Shi,

Jiangling Li,

Shuping Xiao

et al.

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: 93, P. 243 - 252

Published: Feb. 9, 2024

Language: Английский

Citations

16
The central role of colloids to explain the crystallization dynamics of halide perovskites: A critical review DOI Creative Commons

Davide Amoroso,

Giuseppe Nasti, Carolin M. Sutter‐Fella

et al.

Matter, Journal Year: 2024, Volume and Issue: 7(7), P. 2399 - 2430

Published: May 2, 2024

Progress and potentialRecently, there has been a growing interest in seeing the perovskite precursor solution as colloidal suspension rather than chemical solution. However, little attention paid to how these colloids interact form perovskite. This review aims shed light on this aspect, focusing mainly effect of additives solvents properties suspensions. Colloid theory emerges tool for comprehending crystallization mechanisms, thereby advancing development improved perovskite-based solar cells.SummarySolar photovoltaics offers promising avenue sustainable power generation, with cells gaining significant due their cost effectiveness remarkable performance. Lead-based perovskites, while possessing superior electron mobility carrier properties, raise concerns environmental health risks. Substituting lead tin holds promise. Tin halide particularly iodine halide, exhibit lower band gaps, suggesting heightened efficiency. managing process, crucial achieving films desired morphological crystal phase purity, poses challenge materials. Although solvent additive engineering are extensively explored, specific effects suspensions received relatively attention. provide an overview world colloids, shedding manipulation can exert substantial influence kinetics thin films.Graphical abstract

Language: Английский

Citations

15
Ambient Air Processed Inverted Inorganic Perovskite Solar Cells with over 21 % Efficiency Enabled by Multifunctional Ethacridine Lactate DOI
Tianxiang Li, Wan Li, Kun Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(36)

Published: June 15, 2024

All-inorganic cesium lead triiodide perovskites (CsPbI

Language: Английский

Citations

14
Pseudohalide‐Based Ionic Liquids: Advancing Crystallization Kinetics and Optoelectronic Properties in All‐Inorganic Perovskite Solar Cells DOI Creative Commons
Murat Ebiç, Faranak Sadegh, Muhammad Ans

et al.

Small, Journal Year: 2024, Volume and Issue: 20(44)

Published: July 10, 2024

This study delves into the innovative approach of enhancing efficiency and stability all-inorganic perovskite solar cells (I-PSCs) through strategic incorporation thiocyanate (SCN

Language: Английский

Citations

8
Efficiency enhancement to 24.62% in inverted perovskite solar cells through poly (ionic liquid) bulk modification DOI Creative Commons
Xingyuan Chen, Tong Wang, Jiabao Yang

et al.

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
Molecularly Engineered Multifunctional Bridging Layer Derived from Dithiafulavene Capped Spiroxanthene for Stable and Efficient Perovskite Solar Cells DOI Creative Commons
Afzal S. Siddiqui, Faranak Sadegh, Kodali Phani Kumar

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(13), P. 16213 - 16223

Published: March 26, 2024

This study introduces a novel approach centered around the design and synthesis of an interfacial passivating layer in perovskite solar cells (PSCs). architectural innovation is realized through development specialized material, termed dithiafulvene end-capped Spiro[fluorene-9,9′-xanthene], denoted by acronym AF32. In this architecture, thoughtfully attached to spiroxanthene fluorene core with phenothiazine as spacer unit, possessing multiple alkyl chains. AF32 passivates defects coordinating sulfur constituents frameworks uncoordinated Pb2+ cations on surface film, chains construct hydrophobic environment, preventing moisture from entering hydrophilic improving long-term stability PSCs. Furthermore, conductive interlayer facilitates hole transport PSCs due its well-aligned molecular orbital levels. Such improvements translated into enhanced power conversion efficiency (PCE) 22.6% for device employing 1.5 mg/mL AF32, it maintained 85% initial PCE after more than 1800 h under ambient conditions [illumination 45 ± 5% relative humidity (RH)]. not only marks progress photovoltaic technology but also expands our understanding manipulating properties optimized performance stability.

Language: Английский

Citations

5
Phenolphthalein: A Potent Small-Molecule Additive for High-Performance and Ambient-Air-Stable FAPbI3 Perovskite Solar Cells DOI
Hytham Elbohy, Hiroo Suzuki, Takeshi Nishikawa

et al.

ACS Applied Energy Materials, Journal Year: 2024, Volume and Issue: 7(7), P. 2925 - 2937

Published: March 25, 2024

We assessed the impact of phenolphthalein (PHTH) on efficacy and robustness FAPbI3 perovskite solar cells (PSCs) fabricated in ambient air. The experimental methodology entailed integration PHTH into precursor solution. optimized concentration 10 mg/mL significantly elevated power conversion efficiency (PCE), experiencing an enhancement from 14.62 to 19.9%, while manifesting minimal hysteresis. PHTH-treated PSCs maintained approximately 90% their initial PCE following a storage duration 720 h air at 25 °C with 30% relative humidity. In contrast, control devices exhibited swift degradation, retaining only value within under identical environmental conditions. observed performance is attributed acting as intermolecular bonding agent, facilitating crystallization film. This improvement primarily rooted interaction between O-donor Lewis base both Pb2+ FA+ ions perovskite. effectively mitigates trap-assisted recombination processes expedites less desirable δ-phase highly photoactive stable α-phase FAPbI3. Overall, these outcomes underscore potential black phosphorus promising additive for enhancing stability PSCs.

Language: Английский

Citations

4