Structural Tailoring the Phenylenediamine Isomers to Obtain 2D Dion–Jacobson Tin Perovskite Solar Cells with Record Efficiency DOI
Huanhuan Yao, Tai‐Sing Wu, Cheng Wu

et al.

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(12)

Published: Dec. 14, 2023

Abstract 2D Dion–Jacobson (DJ) tin halide perovskite shows impressive stability by introducing diamine organic spacer. However, due to the dielectric confinement and uncontrollable crystallization process, DJ usually exhibits large exciton binding energy poor film quality, resulting in unfavorable charge dissociation, carrier transport device performance. Here, ortho ‐, meta para ‐isomers of phenylenediamine (PDA) are designed for perovskites. Theoretical simulation experimental characterizations demonstrate that compared with p ‐PDA m ‐PDA, o larger dipole moment, which further reduces Besides, there is a strong hydrogen bond interaction between cation inorganic octahedron, not only improves structural stability, but also induces aggregates precursor form dense uniform high‐quality films, strengthens antioxidant barrier. More interestingly, femtosecond transient absorption proves spacers can reduce small n‐phases, sufficient effective transfer different n‐value. As result, ( ‐PDA)FA 3 Sn 4 I 13 solar cells achieve record power conversion efficiency 7.18%. The study furnishes an method optimize performance tailoring chemical structure spacers.

Language: Английский

Perovskite–organic tandem solar cells DOI
Kai Oliver Brinkmann, Pang Wang, Felix Lang

et al.

Nature Reviews Materials, Journal Year: 2024, Volume and Issue: 9(3), P. 202 - 217

Published: Jan. 31, 2024

Language: Английский

Citations

73
Origins and Suppression of Sn(II)/Sn(IV) Oxidation in Tin Halide Perovskite Solar Cells DOI

Junke Liu,

Huanhuan Yao, Shurong Wang

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(23)

Published: May 1, 2023

Abstract Tin halide perovskite solar cells (TPSCs) have attracted aggressive research interest in the emerging photovoltaic devices due to their eco‐friendliness as compared lead counterparts. However, easy Sn(II)/Sn(IV) oxidation of tin perovskites is a serious impediment development TPSCs. Therefore, clear understanding mechanisms, origins, and effects essential further boost performance stability Herein, systematic overview physicochemical process for TPSCs from starting precursors final presented. In addition, on are then reviewed crystal structure, defect chemistry, optoelectronic properties. More importantly, key issues suppress seriously discussed basis reported antioxidation strategies. Finally, challenges outlooks toward with higher power conversion efficiency proposed.

Language: Английский

Citations

69
Cyano‐Coordinated Tin Halide Perovskites for Wearable Health Monitoring and Weak Light Imaging DOI
Tianhua Liu, Junfang Wang, Yongsi Liu

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(24)

Published: March 4, 2024

Low-toxicity tin halide perovskites with excellent optoelectronic properties are promising candidates for photodetection. However, perovskite photodetectors have suffered from high dark current owing to uncontrollable Sn

Language: Английский

Citations

21
π-Conjugated Lewis Base for Efficient Tin Halide Perovskite Solar Cells with Retarded Sn2+ Oxidation DOI
Shurong Wang, Cheng Wu, Tai‐Sing Wu

et al.

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(3), P. 1168 - 1175

Published: Feb. 26, 2024

Lead-free tin halide perovskite solar cells (TPSCs) have driven much research attention for their environmental friendliness. However, the low efficiency and large open-circuit voltage (Voc) deficit limit further development. Here, we introduced a π-conjugated Lewis base, 1H-pyrrolo[2,3-b]pyridin-6-ylaamine (1H6An), N donor unique electron-donating role of pyridine pyrrole with unpaired lone pair electrons to interact perovskites thus retard oxidation Sn2+ during aging process precursors. Meanwhile, interaction stabilized lattice decreased microstrain deposited films. The carrier kinetics revealed notably enhanced extraction transport as well nonradiative recombination 1H6An. Consequently, this approach delivered an 13.28% remarkable Voc enhancement from 853 907 mV. 1H6An device exhibited extended lifespan over 2500 h around 90% retention its initial value in N2 atmosphere.

Language: Английский

Citations

20
A Revisit of Crystallization in Tin Halide Perovskite Thin Films: From Nucleation, Intermediate to Crystal Growth DOI

Mingyu Yin,

Huanhuan Yao,

Hongju Qiu

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 25, 2024

Abstract Perovskite solar cells (PSCs) are exuding unique charm in the third generation of thin film cell technology with high power conversion efficiency (PCE) and low production cost. Recently, lead‐free tin halide perovskite (TPSCs) have drawn significant research interests due to advantages toxicity, near‐ideal bandgap carrier mobility. However, rapid crystallization easy oxidation limits quality final performance cells. Therefore, deposition high‐quality films is key advance TPSCs. In this review, classical theory solution nucleation crystal growth reviewed correlated practical film. The physicochemical properties those lead counterpart differences process carefully compared. On basis, recent regulation strategies systematically summarized terms management, intermediate phase engineering regulation. addition, preparation mixed tin‐lead (Sn‐Pb) PSCs toward also discussed, as well limiting factors for device stability. Finally, future challenges prospects discussed more efficient stable

Language: Английский

Citations

13
Adhesion‐Controlled Heterogeneous Nucleation of Tin Halide Perovskites for Eco‐Friendly Indoor Photovoltaics DOI
Zhen Gao, Junfang Wang, Hongbin Xiao

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: July 16, 2024

Abstract The rapid development of the Internet Things (IoT) has accelerated advancement indoor photovoltaics (IPVs) that directly power wireless IoT devices. interest in lead‐free perovskites for IPVs stems from their similar optoelectronic properties to high‐performance lead halide perovskites, but without concerns about toxic leakage environments. However, currently prevalent perovskite IPVs, especially tin (THPs), still exhibit inferior performance, arising uncontrollable crystallization. Here, a novel adhesive bonding strategy is proposed precisely regulating heterogeneous nucleation kinetics THPs by introducing alkali metal fluorides. These ionic adhesives boost work adhesion at buried interface between substrates and film, subsequently reducing contact angle energy barrier nucleation, resulting high‐quality THP films. solar cells achieve an efficiency 20.12% under illumination 1000 lux, exceeding all types successfully powering radio frequency identification‐based sensors.

Language: Английский

Citations

13
Cross‐Linkable Fullerene Enables Elastic and Conductive Grain Boundaries for Efficient and Wearable Tin‐Based Perovskite Solar Cells DOI

Enlong Hou,

Jingfu Chen,

Jiefeng Luo

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(20)

Published: March 12, 2024

Abstract Tin‐based perovskite solar cells (TPSCs) have received increasing attention due to their low toxicity, high theoretical efficiency, and potential applications as wearable devices. However, the inherent fast uncontrollable crystallization process of tin‐based perovskites results in defect density film. Meanwhile, when fabricated into flexible devices, prepared film exhibits inevitable brittleness Young's modulus, seriously weakening mechanical stability. In this work, we design synthesize a cross‐linkable fullerene, thioctic acid functionalized C 60 fulleropyrrolidinium iodide (FTAI), which has multiple interactions with components can finely regulate quality The obtained shows an increased grain size more matched energy level electron transport material, effectively improving carrier extraction efficiency. FTAI‐based rigid device achieves champion efficiency 14.91 % enhanced More importantly, FTAI located at boundaries could spontaneously cross‐link during annealing process, improves conductivity elasticity boundaries, thereby giving excellent bending resistance. Finally, yields record 12.35 displays robust durability, retaining about 90 initial after 10,000 times.

Language: Английский

Citations

11
A dual passivation strategy based on F/N co-doped coal-based graphene quantum dots for high-efficiency carbon-based perovskite solar cells DOI

Qixu Hu,

Ke Zhao, Min Liu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(10), P. 5980 - 5989

Published: Jan. 1, 2024

F/N-GQDs were used to synergistically passivate defects of perovskite layers, suppressing nonradiative recombination, optimizing energy level alignment, and improving hole extraction ability, greatly enhancing the photoelectric performance C-PSCs.

Language: Английский

Citations

9
Perfluorinated Anionic Surfactant Assisted Homogeneous Crystallization for Efficient and Stable Formamidinium‐Based Sn‐Pb Perovskite Solar Cells DOI Open Access
Tengfei Kong,

Yinjiang Liu,

Zihan Zhao

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

Abstract Formamidinium (FA)‐based Sn‐Pb perovskite demonstrates superior thermal stability, making it well‐suited for all‐perovskite tandem solar cells. However, the uncontrolled crystallization process remains a significant challenge. In this study, an effective strategy is presented to regulate of FA‐based by incorporating perfluoroanionic surfactant (perfluorohexanesulfonic acid potassium salt, F 13 C 6 SO 3 K) into precursor. The multifunctional sites K, including atoms and − groups, interact with components stabilize colloidal distribution precursor modulate kinetics. This results in high‐quality films fewer defects. Consequently, cell (PSC) achieves champion efficiency 24.33%, open‐circuit voltage 0.895 V fill factor 83.2%. After continuous heating at 65 °C 1008 h, still maintain 91% its initial efficiency, which shows enhanced stability. When coupled wide‐bandgap subcell, reaches power conversion (PCE) 27.57%.

Language: Английский

Citations

1
Enhanced Efficiency and Stability of Tin Halide Perovskite Solar Cells Through MOF Integration DOI Creative Commons
Yongqi Yin,

Xisheng Zhang,

Ho Ngoc Nam

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Tin halide perovskites are promising candidates for lead-free perovskite solar cells due to their ideal bandgap and high charge-carrier mobility. However, poor crystal quality rapid degradation in ambient conditions severely limit stability practical applications. This study demonstrates that incorporating UiO-66, a zirconium-based MOF, significantly enhances the performance of tin (TPSCs). The unique porous structure abundant carboxylate groups UiO-66 improve crystallinity film FASnI₃, reduce defect density, prolong charge carrier lifetimes. Consequently, power conversion efficiency (PCE) UiO-66-integrated TPSCs increases from 11.43% 12.64%, devices maintain over 90% initial PCE after 100 days nitrogen glovebox. These findings highlight potential addressing challenges perovskites.

Language: Английский

Citations

1