Non-central symmetric 2D bismuth‐based perovskites for piezoelectric-enhanced sonodynamic immunotherapy

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 687, P. 386 - 401

Published: Feb. 13, 2025

Language: Английский

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Additive‐Driven Enhancement of Crystallization: Strategies and Prospects for Boosting Photoluminescence Quantum Yields in Halide Perovskite Films for Light‐Emitting Diodes

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

Published: Nov. 6, 2024

Abstract Halide perovskite light‐emitting diodes (PeLEDs) hold great potential for applications in displays and lighting. To enhance the external quantum efficiency (EQE) of PeLEDs, it is crucial to boost photoluminescence yield (PLQY) films. The use additives has emerged as a powerful chemical strategy control crystallization process solution‐processed different types that can be used reflect various interactions with materials, influencing their possible ways. Understanding relationship between these impact on key step designing emitters improved PLQY devices superior EQE. Following logic chain additive–perovskite interactions, impacts crystallization, subsequent enhancement EQE, this review discusses how play pivotal role Furthermore, assessment addresses open challenges outlines future prospects development PeLEDs.

Language: Английский

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XPS Visualization of Soft and Hard Lewis Base Passivation of Defects in MAPbI3 Perovskite

Physica B Condensed Matter, Journal Year: 2025, Volume and Issue: unknown, P. 417268 - 417268

Published: April 1, 2025

Language: Английский

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Plasmon-enhanced exciton relocalization in quasi-2D perovskites for low-threshold room-temperature plasmonic lasing

Science Advances, Journal Year: 2025, Volume and Issue: 11(19)

Published: May 7, 2025

Room-temperature nanolasers are crucial for advancing optical communication and photonic quantum technologies due to their capability generate coherent light at a subwavelength scale. However, development is constrained by challenges such as insufficient gain, material instability, high lasing thresholds. By integrating quasi–two-dimensional (quasi-2D) perovskites with high- Q plasmonic nanostructures, we demonstrate stable, wavelength-tunable, single-mode laser operating room temperature. This device leverages unique exciton relocalization effect in quasi-2D Ruddlesden-Popper additives, substantially enhancing gain improving stability. When coupled waveguide-hybridized surface lattice resonance mode, the enhanced light-matter interaction facilitates notably low threshold of 0.9 millijoules per square centimeter. In addition, achieves robust performance extended operational stability (1.8 × 10 6 excitation pulses). These results provide scalable, low-cost, energy-efficient platform nanolasing, potential applications next-generation technologies, including detection ranging, sensing, communication, computation.

Language: Английский

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Inelastic Deformation in Methylammonium Lead Iodide Perovskite and Mitigation by Additives during Thermal Cycling

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(5), P. 2101 - 2108

Published: April 11, 2024

Metal halide perovskite thin films are promising materials for next-generation photovoltaic applications, but the thermomechanical instabilities of these critical barriers to device longevity. In this study, we measure evolution stresses in methylammonium lead iodide (MAPbI3) thermally cycled from 25 105 °C using a multibeam optical stress sensor (MOSS) system. We demonstrate that undergo residual buildup due inelastic deformation as well simple mitigation strategy by incorporating low concentrations 5-aminovaleric acid hydrochloride (5-AVACl) an additive. Adding 5-AVACl increases tensile measured at room temperature beneficially decreases biaxial modulus 9.60 ± 0.44 GPa 7.95 0.55 GPa, resulting greater accommodation thermal stresses. The hysteresis loop is ∼63% smaller with inclusion 5-AVACl, and relaxation 50 86.46 51.49 MPa. larger pristine MAPbI3 correlated grain boundary opening after five cycles, while mitigates degradation. Our findings underscore importance studying dynamic response during cycling lay foundation further exploration into mechanisms governing behavior films.

Language: Английский

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Silane Doping for Efficient Flexible Perovskite Solar Cells with Improved Defect Passivation and Device Stability

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: April 23, 2024

In this work, doping 3-amino-propyl triethoxysilane (APTES) into a perovskite precursor is proven to be an effective strategy, which can passivate crystal defects, control the crystallization rate, and improve morphology. APTES form oligomers through hydrolysis condensation reaction, thus blocking invasion of external water molecules. addition, lone pair electrons on N atom in amino group coordination bond with by sharing empty 6p orbital Pb2+, effectively defects film realize highly uniform dense preferential growth orientation. The exhibits high (110) plane orientation long carrier lifetime mobility, improves performance flexible solar cells. Using approach, champion device presents optimal power conversion efficiency 19.84% much promoted air stability. Moreover, devices does not decrease after maximum point irradiation for 360 s.

Language: Английский

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