Simultaneous Suppression of Multilayer Ion Migration via Molecular Complexation Strategy toward High‐Performance Regular Perovskite Solar Cells DOI Open Access
Qian Zhou, Yingying Yang, Dongmei He

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 4, 2024

Abstract The migration and diffusion of Li + , I − Ag impedes the realization long‐term operationally stable perovskite solar cells (PSCs). Herein, we report a multifunctional universal molecular complexation strategy to simultaneously stabilize hole transport layer (HTL), electrode by suppression via directly incorporating bis(2,4,6‐trichlorophenyl) oxalate (TCPO) into HTL. Meanwhile, TCPO co‐doping results in enhanced mobility HTL, advantageous energy band alignment mitigated interfacial defects, thereby leading facilitated extraction minimized nonradiative recombination losses. TCPO‐doped regular device achieves peak power conversion efficiency (PCE) 25.68 % (certified 25.59 %). unencapsulated doped devices maintain over 90 their initial efficiencies after 730 h continuous operation under one sun illumination, 2800 storage at 30 relative humidity, 1200 exposure 65 °C, which represents best stabilities reported for PSCs. This work provides new approach enhance PCE stability PSCs host–guest rational design ligand molecules.

Language: Английский

Homogenizing the Halogen Distribution via a Multifunctional Fluorine‐Containing Additive Toward High‐Performance Inverted Wide‐Bandgap Perovskite Solar Cells DOI Open Access
Jiawen Li,

Shaofeng Zhu,

Chunyang Yin

et al.

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

Published: Jan. 21, 2025

Abstract Wide‐bandgap perovskite solar cells, which are essential for tandem photovoltaics, easily suffer from open‐circuit voltage ( V OC ) losses due to challenges in suppressing halogen heterogeneity and defect‐related nonradiative recombination the active layers. Herein, a multifunctional fluorine‐containing additive of 8‐pentafluorobenzyloxy quinoline (8‐PFBQ) is explored modulate crystallization defect properties wide‐bandgap (1.67 eV) perovskites, enhancing both efficiency operational stability ensuing cells. It demonstrated that group 8‐PFBQ can strongly coordinate with lead ions fluorinated benzyl effectively interacts organic halides through anion‐π hydrogen bonding interactions simultaneously. These synergistic effects improve crystal quality composition homogeneity, holistically reducing defects The resulting cells achieve champion power conversion 22.22%, featuring high 1.243 two‐fold enhancement stability. This work presents an alternative strategy management offering insights advancements single‐junction photovoltaics.

Language: Английский

Citations

1
Device Performance of Emerging Photovoltaic Materials (Version 5) DOI Creative Commons
Osbel Almora, Guillermo C. Bazan, Carlos I. Cabrera

et al.

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

Published: Nov. 26, 2024

Abstract This 5th annual “ Emerging PV Report” highlights the latest advancements in performance of emerging photovoltaic (e‐PV) devices across various e‐PV research areas, as documented peer‐reviewed articles published since August 2023. Updated graphs, tables, and analyses are provided, showcasing several key parameters, including power conversion efficiency, open‐circuit voltage, short‐circuit current, fill factor, light utilization stability test energy yield. These parameters presented functions bandgap average visible transmittance for each technology application contextualized using benchmarks such detailed balance efficiency limit.

Language: Английский

Citations

5
Accelerating direct formation of α-FAPbl3 by dual-additives synergism for inverted perovskite solar cells with efficiency exceeding 26 % DOI
Min Wang, Liang Li, Jinhui Wang

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159056 - 159056

Published: Jan. 6, 2025

Language: Английский

Citations

0
Effect of BPFz on the Performance of Inorganic Perovskite Film and Solar Cells DOI Open Access
Shanshan Qi, Pengyang Wang,

Hongrui Sun

et al.

Solar RRL, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 19, 2025

Inorganic perovskite exhibits an appropriate bandgap and excellent light thermal stability, making it ideal top‐cell material for silicon tandem solar cells. However, significant non‐radiative recombination losses due to surface defects in inorganic films, along with phase stability issues humid environments, restrict the efficiency improvement of inverted cells (IPSCs). This work reports preparation efficient, stable IPSCs by using a multifunctional molecule, bis (pentafluorophenyl) zinc (BPFz), as treatment CsPbI 2.85 Br 0.15 films. After BPFz, film undergoes secondary grain growth, significantly increasing size. Simultaneously, BPFz can passivate undercoordinated Pb 2+ , effectively suppressing nonradiative recombination. Additionally, fluorinated phenyl group endows superhydrophobic properties, protecting layer from influence environmental humidity, while also helping suppress ion diffusion within device, enhancing device stability. Ultimately, after increases 18.18 20.22%, V OC 1.169 1.231 V, moisture provides new approach development high‐efficiency future.

Language: Английский

Citations

0
Dual-stage Crystallization Regulation for Efficient and Stable Perovskite Solar Cells DOI

Zhuoyuan Kong,

Shuo Ding, Ming Cai

et al.

Materials Today Energy, Journal Year: 2025, Volume and Issue: unknown, P. 101836 - 101836

Published: Feb. 1, 2025

Language: Английский

Citations

0
Gradient Doping Strategy for Sn─Pb Mixed Perovskite Solar Cells with High Efficiency and Stability DOI Open Access

H. K. Zhang,

Chao Gao, Li He

et al.

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

Published: March 26, 2025

Sn─Pb hybrid perovskite has attracted more attention due to its ideal bandgap and excellent photoelectric properties. However, easy oxidation poor crystallinity caused by the introduction of Sn2+ have become two major problems. In this study, is doped in Pb-based prepare high crystalline mixed with larger grain size using solvent engineering technique cooperation optimization HCOOH. The reducibility HCOOH inhibition deprotonation significantly prevent decomposition A-site cations. experimental theoretical results show that interactions between Pb2+, which reduce defect density improve stability film addition, compact SnO2 prepared atomic layer deposition as electronic transformation further devices. conversion efficiency solar cells (PSCs) dopant growth method can reach 21.53% better than PSCs traditional method.

Language: Английский

Citations

0
Making Cells “Greener:” Research Progress of Natural Green Plant Extracts in Perovskite Solar Cells DOI
Yuan He, Yong Li,

Ang Gao

et al.

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

Published: April 4, 2025

Abstract Perovskite solar cells (PSCs) have great potential as a third‐generation emerging photovoltaic technology. Nevertheless, the perovskite films prepared by conventional solution methods are plagued large number of defects, which not only serve nonradiative recombination centers, but also more susceptible to influence water/oxygen/light in environment, further degrading film quality. To address this challenge, additive engineering has been widely applied PSCs. This review summarizes research progress low‐cost, natural, environmentally friendly, and nontoxic plant extracts improving device performance. Specifically, advantages limitations different kinds PSCs, analysis each layer adjacent interface Furthermore, effects applications on PSCs discussed from four aspects, namely, regulating crystallinity crystals, stability, adjusting energy levels, innovative applications. Finally, prospects role development large‐scale industrialization.

Language: Английский

Citations

0
In Situ Impurity Phase Repair Strategy Enables Highly‐Efficient Perovskite Solar Cells with Periodic Photovoltaic Performance DOI
Min Li, Yulin Xie, Long Luo

et al.

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

Published: April 13, 2025

Abstract The photoactive α‐phase of formamidinium lead iodide perovskite (α‐FAPbI 3 ) is regarded as one the ideal materials for high‐efficiency solar cells (PSCs) due to its superior optoelectronic properties. However, during deposition α‐FAPbI films, presence impurity phases, such PbI 2 and δ‐FAPbI , can cause formation inherent defects, which leads suboptimal charge transport extraction properties, well inadequate long‐term stability in film's morphology structure. To address these issues, an phase repair strategy employed using FAI/MASCN mixed vapors convert phases into light‐absorbing . Meanwhile, this recrystallization process also facilitates recovery characteristic morphology, thereby improving efficiency enhancing durability PSCs. This approach promotes PSCs obtain 26.05% (with a certified 25.67%, steady‐state PCE 25.41%). Additionally, suitable fabrication large‐area devices, obtaining 1 cm device with 24.52% mini‐module area 17.1 22.35%. Furthermore, it found that enables cyclic aged retaining ≈ 94.3% their initial after two cycles repair, significantly lifetime cells.

Language: Английский

Citations

0
Ambipolar Interfacial Molecule for Enhancing Performances of Perovskite Solar Cells with Versatile Architectures Under Various Illumination Environments DOI

Min Jun Choi,

Seok Woo Lee,

Hongjae Shim

et al.

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

Published: April 21, 2025

Abstract Perovskite solar cells (PSCs) are of significant interest for researchers as the next‐generation energy harvesters. However, PSCs suffer from traps that densely distributed at interfaces, which deteriorate device's performance. To address this issue, a new small molecule (DTAQTPPO) capable trap passivation on perovskite layer surface while possessing ambipolar charge extraction properties is designed, endow DTAQTPPO with dual functionality both interface defect passivator and efficient hole/electron extractor in n‐i‐p p‐i‐n architectures. These beneficial effects improve power conversion efficiencies (PCEs) to 23.03% 23.55% under 1 sun 37.18% 36.29% 1000 lux light‐emitting diode (LED) indoor illuminations architectures, respectively, after incorporating DTAQTPPO. In addition, enhance PV using an anti‐solvent‐free PCE 23.24% 35.47% LED illumination, respectively. results suggest can be widely used multifunctional interlayer versatile device architectures various light illumination conditions generality different perovskites processes.

Language: Английский

Citations

0
In Situ Construction of Multi‐Functional Polymer Network Toward Durable Perovskite Solar Cells DOI Creative Commons
Bingqian Zhang, Qiangqiang Zhao, Kun Gao

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 30, 2025

Enhancing the crystalline quality of perovskite thin films and stabilizing their internal grain boundaries are essential in guaranteeing extended longevity solar cells. Herein, an situ polymerization strategy is presented to produce weak chemical bond networks films. The introduction acrylamide monomer into precursor solution facilitates rearrangement [PbI6]4- octahedra, resulting a significant enhancement crystal With presence C═C bonds, at can form polymer networks, which efficiently passivate detrimental defects associated with boundaries. cells impressive power conversion efficiency (PCE) 26.05% (certified 25.06%) achieved, combined highly improved operational stability T98 = 2034 h. As expected, large-area module based on this achieved PCE 23.02% active area 14 cm2.

Language: Английский

Citations

0