Towards Long‐Term Stable Perovskite Solar Cells: Degradation Mechanisms and Stabilization Techniques

Advanced Science, Journal Year: 2023, Volume and Issue: 11(4)

Published: Nov. 23, 2023

Abstract It is certain that perovskite materials must be a game‐changer in the solar industry as long their stability reaches level comparable with lifetime of commercialized Si photovoltaic. However, operational cells and modules still remains unresolved, especially when devices operate practical energy‐harvesting modes represented by maximum power point tracking under 1 sun illumination at ambient conditions. This review article covers from fundamental aspects instability including chemical decomposition pathways light soaking electrical bias, to recent advances techniques effectively prevent such degradation modules. In particular, causes for permanent due ion migration trapped charges are overviewed explain interplay between ions charges. Based on mechanism, strategies discussed slow down during operation use perovskite‐based devices.

Language: Английский

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Flexible 2 × 2 multiple access visible light communication system based on an integrated parallel GaN/InGaN micro-photodetector array module

Photonics Research, Journal Year: 2024, Volume and Issue: 12(4), P. 793 - 793

Published: Feb. 6, 2024

In recent studies, visible light communication (VLC) has been predicted to be a prospective technique in the future 6G systems. To suit trend of exponentially growing connectivity, researchers have intensively studied techniques that enable multiple access (MA) VLC systems, such as MIMO system based on LED devices support potential applications Internet Things (IoT) or edge computing next-generation network. However, their transmission rate is limited due intrinsic bandwidth LED. Unfortunately, majority laser (VLLC) research with beyond 10 Gb/s data rates concentrates point-to-point links, using discrete photodetector (PD) instead an integrated array PD. this paper, we demonstrated PD device fabricated Si-substrated GaN/InGaN multiple-quantum-well (MQW) structure, which 4×4 50 μm ×50 micro-PD units common cathode and anode. This single-integrated successfully provides for two different transmitters simultaneously experiment, implementing 2×2 MIMO-VLLC link at 405 nm. The highest achieved 13.2 Gb/s, corresponding net (NDR) 12.27 after deducing FEC overhead, 2.2 GHz superposed PAM signals. Furthermore, assess Huffman-coded coding scheme, brings fine-grain adjustment capacity enhances overall throughput when user signal power varies drastically distance, weather, other challenges channel condition. As far know, first demonstration source single receiver module.

Language: Английский

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What Matters for the Charge Transport of 2D Perovskites?

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(31)

Published: May 23, 2024

Compared to 3D perovskites, 2D perovskites exhibit excellent stability, structural diversity, and tunable bandgaps, making them highly promising for applications in solar cells, light-emitting diodes, photodetectors. However, the trade-off worse charge transport is a critical issue that needs be addressed. This comprehensive review first discusses structure of metal halide then summarizes significant factors influencing detail provides brief overview testing methods. Subsequently, various strategies improve are presented, including tuning A'-site organic spacer cations, A-site B-site X-site ions. Finally, an outlook on future development improving perovskites' discussed.

Language: Английский

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An extensive study on charge transport layers to design and optimization of high-efficiency lead-free Cs2PtI6-based double-perovskite solar cells: A numerical simulation approach

Results in Physics, Journal Year: 2024, Volume and Issue: 61, P. 107751 - 107751

Published: May 11, 2024

Perovskite materials are getting attention day by due to their numerous optoelectronic properties. Lead perovskites well-known for various applications in photovoltaic devices non-toxicity which has no impacts on both the environment and health. Cs2PtI6, a lead-free halide perovskite, is renowned its broad-spectrum light absorption remarkably high coefficient. Its stability under ambient conditions surpasses that of other perovskites, rendering it exceptionally appealing The device configuration with FTO/ETL/Cs2PtI6/HTL/Au used this study where 4 different ETLs 10 HTLs investigate best configuration. impact parameters like thickness, acceptor density, donor defect density optimized attain efficient SCAPS-1D simulator perform numerical analysis intensity AM 1.5 spectrum (100 mW/cm2). After optimization parameters, configured FTO/SnS2/Cs2PtI6/MoTe2/Au shows performance among four PCE 32.98 %, VOC 1.11 V, JSC 33.19 mA/cm2, FF 88.89 %. This suggested Cs2PtI6-based perovskite solar cells demonstrate superior compared lead perovskite-based cells, highlighting Cs2PtI6 as promising alternative while mitigating toxicity concerns.

Language: Английский

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A Review on Recent Progress and Challenges in High-Efficiency Perovskite Solar Cells

Nano Energy, Journal Year: 2024, Volume and Issue: unknown, P. 110401 - 110401

Published: Oct. 1, 2024

Language: Английский

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Stability and reliability of perovskite containing solar cells and modules: degradation mechanisms and mitigation strategies

Energy & Environmental Science, Journal Year: 2024, Volume and Issue: 17(20), P. 7566 - 7599

Published: Jan. 1, 2024

This work summarizes various degradation mechanisms relevant for perovskite photovoltaics on different levels from the single layers over (tandem) solar cells to modules hereof and their mitigation strategies enable reliable modules.

Language: Английский

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Current Progress of Perovskite Solar Cells Stability with Bibliometric Study

Current Opinion in Colloid & Interface Science, Journal Year: 2024, Volume and Issue: unknown, P. 101862 - 101862

Published: Sept. 1, 2024

Language: Английский

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Effects of K- or Ge-additions to formamidinium-based perovskite crystals on electronic structures and photovoltaic properties

Chemical Physics Letters, Journal Year: 2025, Volume and Issue: unknown, P. 141937 - 141937

Published: Feb. 1, 2025

Language: Английский

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Effects of light irradiation on the photovoltaic performance and crystal lattices of organic–inorganic perovskites in solar cells

Next Energy, Journal Year: 2025, Volume and Issue: 8, P. 100263 - 100263

Published: March 20, 2025

Language: Английский

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Electronic structures of ABX3 perovskite crystals with a monovalent copper ion as the A-site cation

Chemical Physics Impact, Journal Year: 2024, Volume and Issue: 8, P. 100534 - 100534

Published: Feb. 10, 2024

A study was performed on the electronic structures and properties of perovskite compounds with chemical formula ABX3 monovalent copper ion (Cu+) as A-site cation. Most Cu+-based chlorides (CuMCl3, where M denotes an element) had lower total energies than cesium (Cs)-based crystals. The energy gaps CuMCl3 perovskites B-site cations spanning chromium (Cr) to zinc (Zn) were close ideal value for photovoltaic materials. calculated carrier effective mass ratios indicated that should have a similar or higher mobility CsPbCl3 (Pb=lead). Unlike Cs-based perovskites, electron orbitals Cu MCl6 octahedron overlap, suggesting Cu+ at affect stability crystal structure mobility. can be used cation in tune composition all-inorganic crystals thereby increase diversity physical properties.

Language: Английский

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