Lead-Free Halide Perovskite-Based Flexible Memristor for an Artificial Mechano-nociceptive System DOI
Yuchan Wang, Qian Ran, Ting Chen

и другие.

The Journal of Physical Chemistry Letters, Год журнала: 2025, Номер unknown, С. 3177 - 3184

Опубликована: Март 20, 2025

Herein, novel lead-free Cs3Bi2I9 nanocrystals (NCs) were preferred through first-principles calculations and crystal orbital Hamilton population (COHP). An artificial nociceptor was designed using the halide perovskite (HP) NCs doped into poly(methyl methacrylate) (PMMA). The resulting composite material memristor demonstrated remarkable resistive switching performance conductive atomic force microscopy (C-AFM). PMMA&Cs3Bi2I9-based memristors show an ultrafast speed of 30 ns low threshold voltage ≈0.6 V with little variation, which attributed to synergistic effect active metal electrodes vacancy filaments. Impressively, high mechanical bending stability (bending times = 1000) still exhibit excellent resistance state (RS) properties multilevel storage after days exposed ambient conditions. More importantly, fundamental nociceptive functions fully demonstrated. Furthermore, a mechano-nociceptor system simulate mechanism biological pain perception, could selectively react mild harmful stimuli. Our study provides new strategies for developing efficient neuromorphic materials devices.

Язык: Английский

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

Qisen Zhou,

Xiaoxuan Liu, Zonghao Liu

и другие.

Materials Futures, Год журнала: 2024, Номер 3(2), С. 022102 - 022102

Опубликована: Апрель 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.

Язык: Английский

Процитировано

25
Advancements in Perovskites for Solar Cell Commercialization: A Review DOI Creative Commons
Tejas Dhanalaxmi Raju,

Vignesh Murugadoss,

Kiran A. Nirmal

и другие.

Advanced Powder Materials, Год журнала: 2025, Номер unknown, С. 100275 - 100275

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

4
Indoor Energy Harvesting With Perovskite Solar Cells for IoT Applications─A Full Year Monitoring Study DOI Creative Commons
Matija Pirc, Žan Ajdič, Darjo Uršič

и другие.

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(2), С. 565 - 575

Опубликована: Янв. 2, 2024

Indoor photovoltaics (IPV) hold enormous market potential driven by the rising demand for perpetual energy sources to power various small electrical devices and especially Internet of things (IoT) devices. Perovskite solar cells (PSCs) offer exciting prospects this role. This study sets out deepen our knowledge PSC performance under realistic indoor conditions. For purpose, we designed an monitoring system that maintains four at their maximum points simultaneously logs environmental Throughout a 12-month period, monitored behavior three PSCs one crystalline silicon cell (c-Si SC), all with active area approximately 1 cm2. Measured daily yields in conjunction comparative overview minimum requirements different wireless technologies indicate single cm2 should be enough IoT device available short-range, low-power on most days year, fact confirmed prototype device. There are, however, few every year when would not even point tracking, highlighting need least some storage capacity. Solar orientation dependence measurements demonstrated 36% advantage optimal 72% drop worst compared horizontal orientation. A one-year yield results show remarkable three-to-one favor best (148.8 mWh/cm2) over c-Si SC (46.0 mWh/cm2). The also retained its initial throughout simple edge-sealing encapsulation.

Язык: Английский

Процитировано

15
Unraveling the Influence of Solvent on Side Reactions between Formamidinium Lead Triiodide and Methylammonium Cations DOI
Liang Chen, Manman Hu,

Andi Muhammad Risqi

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(14), С. 10159 - 10166

Опубликована: Апрель 1, 2024

Formamidinium lead triiodide (FAPbI3) perovskite thin films are commonly deposited through a solution process, often incorporating specific amount of methylammonium halide to stabilize the α-phase or enhance their crystallinity. The precursor for such coatings significantly influences fabrication solar cells (PSCs), involving time-dependent aging and byproduct formation. chemical principle underlying this behavior is believed be related deprotonation methylamine cations (MA+) subsequent reactions with FA+ generate N-methylformamidinium. Nevertheless, role solvent in side between these organic remains unclear. This work systematically investigates reaction reactivity three protic solvents aprotic solvents. We uncover hidden dimethylamine from hydrolysis products N,N-dimethylformamide, promoting MA+. Additionally, we elucidate impact environmental factors, as water oxygen, stabilizing solutions. establishes basic concept scientific direction rationalizing high-efficiency, reproducible, long-term-stable PSCs.

Язык: Английский

Процитировано

14
Compression of Organic Molecules Coupled with Hydrogen Bonding Extends the Charge Carrier Lifetime in BA2SnI4 DOI
Xinbo Ma, Wei‐Hai Fang, Run Long

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(23), С. 16314 - 16323

Опубликована: Май 30, 2024

Two-dimensional (2D) metal halide perovskites, such as BA2SnI4 (BA═CH3(CH2)3NH3), exhibit an enhanced charge carrier lifetime in experiments under strain. Experiments suggest that significant compression of the BA molecule, rather than inorganic lattice, contributes to this enhancement. To elucidate underlying physical mechanism, we apply a moderate compressive strain entire system and subsequently introduce molecules. We then perform ab initio nonadiabatic molecular dynamics simulations nonradiative electron–hole recombination. observe overall lattice reduces atomic motions decreases coupling, thereby delaying Additionally, molecules enhances hydrogen bonding between iodine atoms, which lengthens Sn–I bonds, distorts [SnI6]4– octahedra, suppresses further, thus reducing coupling. Also, elongated bonds weakened antibonding interactions increase band gap. Altogether, delays recombination by more factor 3. Our provide new valuable insights into how strain, accommodated primarily organic ligands, positively influences optoelectronic properties 2D layered offering promising pathway for further performance improvements.

Язык: Английский

Процитировано

11
Tailoring Interface Energies via Phosphonic Acids to Grow and Stabilize Cubic FAPbI3 Deposited by Thermal Evaporation DOI Creative Commons
Andrés‐Felipe Castro‐Méndez, Farzaneh Jahanbakhshi, Diana K. LaFollette

и другие.

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(27), С. 18459 - 18469

Опубликована: Июнь 27, 2024

Coevaporation of formamidinium lead iodide (FAPbI3) is a promising route for the fabrication highly efficient and scalable optoelectronic devices, such as perovskite solar cells. However, it poses experimental challenges in achieving stoichiometric FAPbI3 films with cubic structure (α-FAPbI3). In this work, we show that undesired hexagonal phases both PbI2 form during thermal evaporation, including well-known 2H-FAPbI3, which are detrimental performance. We demonstrate growth α-FAPbI3 at room temperature via evaporation by depositing phosphonic acids (PAc) on substrates subsequently coevaporating iodide. use density-functional theory to develop theoretical model understand relative energetics α 2H different molecular interactions. Experiments presence PAc molecules stabilizes formation thin when excess available migrate growth. This migration facilitates continued adsorbed organic precursors free surface throughout lowers energy phase. Our analyses molecule–molecule interactions ligands can hydrogen bonding reduce rate through deposited film, limiting effects crystal stabilization. results also phase stabilization long-lasting resistant moist air. These findings enable reliable processing vapor deposition.

Язык: Английский

Процитировано

11
Key degradation mechanisms of perovskite solar cells and strategies for enhanced stability: issues and prospects DOI Creative Commons
Md. Helal Miah, Md. Bulu Rahman, Mohammad Nur‐E‐Alam

и другие.

RSC Advances, Год журнала: 2025, Номер 15(1), С. 628 - 654

Опубликована: Янв. 1, 2025

Insights into the factors and mechanisms of degradation, along with potential solutions.

Язык: Английский

Процитировано

2
Recent Advancements in Ambient‐Air Fabrication of Perovskite Solar Cells DOI Creative Commons

Yihuai Huang,

Wenguang Zhang,

Yuchen Xiong

и другие.

Exploration, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

ABSTRACT Perovskite solar cells (PSCs) have attracted considerable attention due to their potential for high‐efficiency conversion and cost‐effective fabrication. Although the fabrication of perovskite films in ambient air offers environmental cost advantages, presence water vapor oxygen may induce instability these films, thereby affecting device performance. This review aims comprehensively explore recent advancements PSCs air, while investigating various factors contributing degradation. Addressing challenges, diverse strategies are outlined, encompassing compositional, additive, solvent, interface engineering enhance performance stability fabricated under air. To facilitate commercialization PSCs, this paper summarizes several widely employed methods large‐scale manufacturing PSCs. Through review, we aim offer some invaluable insights guidance trajectory as well pros cons widespread applications field renewable energy.

Язык: Английский

Процитировано

2
Unveiling the Wavelength-Dependent Performance and Photodegradation Analysis of Perovskite Solar Cells DOI
Bidisha Nath, Praveen C. Ramamurthy, D. Roy Mahapatra

и другие.

ACS Applied Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Recent research has made substantial progress in understanding the wavelength-dependent performance of perovskite solar cells (PSCs) with an N–I–P architecture. In this study, methylammonium lead iodide-based PSCs a power conversion efficiency ∼20% were exposed to red, green, and blue light investigate complexities charge transport dynamics within device. A detailed analysis was carried out explore effects wavelength-specific carrier generation on device performance. Additionally, processes recombination, contributing notable efficiency, examined under varying conditions such as temperature, voltage, illumination. This work provides valuable insights into dynamics, identifying trap states at around 0.26 eV. Elemental mapping cross-section degraded devices different illumination also revealed significant ion migration. The systematic exploration PSC responses various wavelengths offers deeper mechanisms influencing stability, which are essential for targeted design engineering specific applications operational conditions.

Язык: Английский

Процитировано

1
Biomaterial Improves the Stability of Perovskite Solar Cells by Passivating Defects and Inhibiting Ion Migration DOI

Zuwang Liu,

Zhan Su,

Bo Yu

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(24), С. 31218 - 31227

Опубликована: Июнь 6, 2024

With the rapid improvement of power conversion efficiency (PCE), perovskite solar cells (PSCs) have broad application prospects and their industrialization will be next step. Nevertheless, performance long-term stability devices are limited by defect-induced nonradiative recombination centers ions' migration inside films. Here, usnic acid (UA), an easy-to-obtain efficient natural biomaterial with a hydroxyl functional group (−OH) four carbonyl groups (−C═O) was added to MAPbI3 precursor regulate crystallization process slowing rate, thereby expanding crystal size preparing films low defect density. In addition, UA anchors uncoordinated Pb2+ suppresses I-ions, which enhances film. Consequently, impressive PCE exceeding 20% achieved for inverted structure MAPbI3-based PSCs. More impressively, optimized PSCs maintained 78% initial under air high humidity (RH ≈ 65%, 25–30 °C) 1000 h. can extracted from plant, usnea, making it inexpensive easy obtain. Our work demonstrates plant material in industrialization, is significant nowadays.

Язык: Английский

Процитировано

7