Dual Interface Modification for Reduced Nonradiative Recombination in n–i–p Methylammonium-Free Perovskite Solar Cells DOI

Juan José Rodriguez-Perez,

Diego Esparza, Muhammad Ans

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

High defect concentrations at the interfaces are basis of charge extraction losses and instability in perovskite solar cells. Surface engineering with organic cations is a common practice to solve this issue. However, full implications counteranions these for device functioning often neglected. In work, we used 4-fluorophenethylammonium cation varying halide modification both methylammonium-free Pb-based n-i-p devices, observing significant differences among iodide, bromide, chloride. The treatment buried top resulted improved surface quality films largely carrier dynamics reduced nonradiative recombination. Consequently, optimal interface-modified cells surpassed 20% efficiency demonstrated remarkable operational stability. Our findings underscore potential comprehensive strategies advancing film quality, thereby facilitating their broader more successful applications.

Language: Английский

Methods for Passivating Defects of Perovskite for Inverted Perovskite Solar Cells and Modules DOI Creative Commons
Jiarong Wang, Le‐Yu Bi, Qiang Fu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(35)

Published: June 27, 2024

Abstract Inverted perovskite solar cells (PSCs) have attracted considerable attention due to their distinct advantages, including minimal hysteresis, cost‐effectiveness, and suitability for tandem applications. Nevertheless, the solution processing low formation energy of perovskites inevitably lead numerous defects formed at both bulk interfaces layer. These can act as non‐radiative recombination centers, significantly impeding carrier transport posing a substantial obstacle stability further enhancing power conversion efficiency (PCE). This review delves into detailed discussion nature origin characterization techniques employed defect identification. Furthermore, it systematically summarizes methods detection approaches passivating interface within film in inverted PSCs. Finally, this offers perspective on employing upscaling passivation engineering modules. It is hoped provides insights PSCs

Language: Английский

Citations

48
Amidination of ligands for chemical and field-effect passivation stabilizes perovskite solar cells DOI
Yi Yang, Hao Chen, Cheng Liu

et al.

Science, Journal Year: 2024, Volume and Issue: 386(6724), P. 898 - 902

Published: Nov. 21, 2024

Surface passivation has driven the rapid increase in power conversion efficiency (PCE) of perovskite solar cells (PSCs). However, state-of-the-art surface techniques rely on ammonium ligands that suffer deprotonation under light and thermal stress. We developed a library amidinium ligands, interest for their resonance effect–enhanced N–H bonds may resist deprotonation, to stability layers surfaces. This strategy resulted >10-fold reduction ligand equilibrium constant twofold maintenance photoluminescence quantum yield after aging at 85°C illumination air. Implementing this approach, we achieved certified quasi–steady-state PCE 26.3% inverted PSCs; report retention ≥90% 1100 hours continuous 1-sun maximum point operation 85°C.

Language: Английский

Citations

43
Enhanced charge carrier transport and defects mitigation of passivation layer for efficient perovskite solar cells DOI Creative Commons
Zihan Qu, Yang Zhao, Fei Ma

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Oct. 4, 2024

Surface passivation has been developed as an effective strategy to reduce trap-state density and suppress non-radiation recombination process in perovskite solar cells. However, agents usually own poor conductivity hold negative impact on the charge carrier transport device. Here, we report a binary synergistical post-treatment method by blending 4-tert-butyl-benzylammonium iodide with phenylpropylammonium spin-coating surface form layer. The post-treated films show enhanced crystallinity improved molecular packing well better energy band alignment, benefiting for hole extraction transfer. Moreover, defects are further passivated compared unary passivation. Based strategy, record-certified quasi-steady power conversion efficiency of 26.0% cells is achieved. devices could maintain 81% initial after 450 h maximum point tracking.

Language: Английский

Citations

36
Isomeric diammonium passivation for perovskite–organic tandem solar cells DOI

Xin Jiang,

Shucheng Qin, Lei Meng

et al.

Nature, Journal Year: 2024, Volume and Issue: 635(8040), P. 860 - 866

Published: Oct. 14, 2024

Language: Английский

Citations

28
Annual research review of perovskite solar cells in 2023 DOI Creative Commons

Qisen Zhou,

Xiaoxuan Liu, Zonghao Liu

et al.

Materials Futures, Journal Year: 2024, Volume and Issue: 3(2), P. 022102 - 022102

Published: April 24, 2024

Abstract Perovskite (PVK) solar cells (PSCs) have garnered considerable research interest owing to their cost-effectiveness and high efficiency. A systematic annual review of the on PSCs is essential for gaining a comprehensive understanding current trends. Herein, analysis papers reporting key findings in 2023 was conducted. Based results, were categorized into six classifications, including regular n–i–p PSCs, inverted p–i–n PVK-based tandem cells, PVK modules, device stability, lead toxicity green solvents. Subsequently, detailed overview summary advancements within each classification presented. Overall, this serves as valuable resource guiding future endeavors field PSCs.

Language: Английский

Citations

22
Inhibiting Interfacial Nonradiative Recombination in Inverted Perovskite Solar Cells with a Multifunctional Molecule DOI Creative Commons

Jiaxin Wu,

Rui Zhu, Guixiang Li

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(35)

Published: July 7, 2024

Interface-induced nonradiative recombination losses at the perovskite/electron transport layer (ETL) are an impediment to improving efficiency and stability of inverted (p-i-n) perovskite solar cells (PSCs). Tridecafluorohexane-1-sulfonic acid potassium (TFHSP) is employed as a multifunctional dipole molecule modify surface. The solid coordination hydrogen bonding efficiently passivate surface defects, thereby reducing recombination. induced positive between ETLs improves energy band alignment, enhancing interface charge extraction. Additionally, strong interaction TFHSP stabilizes surface, while hydrophobic fluorinated moieties prevent ingress water oxygen, device stability. resultant devices achieve power conversion (PCE) 24.6%. unencapsulated retain 91% their initial after 1000 h in air with 60% relative humidity, 95% 500 under maximum point (MPP) tracking 35 °C. utilization molecules opens new avenues for high-performance long-term stable devices.

Language: Английский

Citations

17
All-perovskite tandem solar cells achieving >29% efficiency with improved (100) orientation in wide-bandgap perovskites DOI
Zhou Liu, Renxing Lin, Mingyang Wei

et al.

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

Published: Jan. 10, 2025

Language: Английский

Citations

14
Molecular cation passivation and bromine vacancy supplement strategy for efficient wide-bandgap perovskite solar cells DOI

Yue Yu,

Maoxia Xu,

Rui Liu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160339 - 160339

Published: Feb. 1, 2025

Language: Английский

Citations

3
Minimizing Interfacial Energy Loss and Volatilization of Formamidinium via Polymer‐Assisted D–A supramolecular Self‐Assembly Interface for Inverted Perovskite Solar Cells with 25.78% Efficiency DOI
Congcong Tian,

Anxin Sun,

Rongshan Zhuang

et al.

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

Published: July 18, 2024

Abstract 2D perovskite passivation strategies effectively reduce defect‐assisted carrier nonradiative recombination losses on the surface. Nonetheless, severe energy are causing by thermalization, interfacial recombination, and conduction band offset still persist at heterojunction perovskite/PCBM interfaces, which limits further performance enhancement of inverted PSCs. Here, 5,10,15,20‐tetrakis(pentafluorophenyl)porphyrin (5FTPP) is introduced between 3D/2D PCBM. Compared to tetraphenylporphyrin without electron‐withdrawing fluoro‐substituents, 5FTPP can self‐assemble with PCBM interface into donor–acceptor (D–A) complex stronger supramolecular interaction lower transfer losses. This rapid from donor acceptor (PCBM) within femtosecond scale demonstrated enlarge hot extraction rates ranges, reducing thermalization Furthermore, incorporation polystyrene derivative (PD) reinforces D–A inhibiting self‐π–π stacking 5FTPP, while fine‐tuning suppressing via Schottky barrier, dipole, n‐doping. Notably, multidentate anchoring PD‐5FTPP FA + , Pb 2+ I − mitigates adverse effects volatilization during thermal stress. Ultimately, devices achieve a power conversion efficiency 25.78% (certified: 25.36%), maintaining over 90% initial after 1000 h continuous illumination maximum point (65 °C) under ISOS‐L‐2 protocol.

Language: Английский

Citations

14
Crystallization Modulation and Holistic Passivation Enables Efficient Two-Terminal Perovskite/CuIn(Ga)Se2 Tandem Solar Cells DOI Creative Commons
Cong Geng,

Kuanxiang Zhang,

Changhua Wang

et al.

Nano-Micro Letters, Journal Year: 2024, Volume and Issue: 17(1)

Published: Sept. 22, 2024

Abstract Two-terminal (2-T) perovskite (PVK)/CuIn(Ga)Se 2 (CIGS) tandem solar cells (TSCs) have been considered as an ideal cell because of their best bandgap matching regarding to Shockley–Queisser (S–Q) limits. However, the nature irregular rough morphology commercial CIGS prevents people from improving device performances. In this paper, D-homoserine lactone hydrochloride is proven improve coverage PVK materials on surfaces and also passivate bulk defects by modulating growth crystals. addition, minority carriers near PVK/C60 interface incompletely passivated trap states caused recombination. A surface reconstruction with 2-thiopheneethylammonium iodide N , -dimethylformamide assisted passivates defect sites located at grain boundaries. Meanwhile, LiF used create field effect, repelling hole away C60 thus reducing As a result, 2-T PVK/CIGS yielded power conversion efficiency 24.6% (0.16 cm ), one highest results for TSCs our knowledge. This validation underscores potential methodology in achieving superior performance cells.

Language: Английский

Citations

11