Metal halide perovskites for light-emitting diodes

Nature Materials, Journal Year: 2020, Volume and Issue: 20(1), P. 10 - 21

Published: Sept. 14, 2020

Language: Английский

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State of the Art and Prospects for Halide Perovskite Nanocrystals

ACS Nano, Journal Year: 2021, Volume and Issue: 15(7), P. 10775 - 10981

Published: June 17, 2021

Metal-halide perovskites have rapidly emerged as one of the most promising materials 21st century, with many exciting properties and great potential for a broad range applications, from photovoltaics to optoelectronics photocatalysis. The ease which metal-halide can be synthesized in form brightly luminescent colloidal nanocrystals, well their tunable intriguing optical electronic properties, has attracted researchers different disciplines science technology. In last few years, there been significant progress shape-controlled synthesis perovskite nanocrystals understanding applications. this comprehensive review, having expertise fields (chemistry, physics, device engineering) joined together provide state art overview future prospects nanocrystal research.

Language: Английский

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Heterogeneous Fenton catalysts: A review of recent advances

Journal of Hazardous Materials, Journal Year: 2020, Volume and Issue: 404, P. 124082 - 124082

Published: Oct. 2, 2020

Heterogeneous Fenton catalysts are emerging as excellent materials for applications related to water purification. In this review, recent trends in the synthesis and application of heterogeneous abatement organic pollutants disinfection microorganisms discussed. It is noted that complexity cell wall increases, resistance level towards various disinfectants increases it requires either harsh conditions or longer exposure time complete disinfection. case viruses, enveloped viruses (e.g. SARS-CoV-2) found be more susceptible than non-enveloped viruses. The introduction plasmonic with broadens visible light absorption efficiency hybrid material, incorporation semiconductor material improves rate regeneration Fe(II) from Fe(III). A special emphasis given use antibacterial applications. Composite magnetite ferrites remain a champion area because their easy separation reuse, owing magnetic properties. Iron minerals supported on clay materials, perovskites, carbon zeolites metal-organic frameworks (MOFs) dramatically increase catalytic degradation contaminants by providing high surface area, good mechanical stability, improved electron transfer. Moreover, insights zero-valent iron its capacity remove wide range pollutants, heavy metals bacterial contamination also Real world role natural matter summarised. Parameter optimisation source, dosage catalyst, concentration H

Language: Английский

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Metal Halide Perovskites for X-ray Imaging Scintillators and Detectors

ACS Energy Letters, Journal Year: 2021, Volume and Issue: 6(2), P. 739 - 768

Published: Jan. 29, 2021

Radiation detection, using materials to convert high-energy photons low-energy (X-ray imaging) or electrical charges detector), has become essential for a wide range of applications including medical diagnostic technologies, computed tomography, quality inspection and security, etc. Metal halide perovskite-based high-resolution scintillation-imaging screens direct conversion detectors are promising candidates such applications, because they have high absorption cross sections X-rays due their heavy atom (e.g., Pb2+, Bi3+, I–) compositions; moreover, these solution-processable at low temperature, possessing tunable bandgaps, near-unity photoluminescence quantum yields, trap density, charge carrier mobility, fast photoresponse. In this review, we explore decipher the working mechanism scintillators as well key advantages perovskites both detection approaches. We further discuss recent advancements in research area, pointing out remaining challenges our perspective future directions toward X-ray applications.

Language: Английский

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Perovskite light-emitting diodes

Nature Electronics, Journal Year: 2022, Volume and Issue: 5(4), P. 203 - 216

Published: April 21, 2022

Language: Английский

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Semiconductor physics of organic–inorganic 2D halide perovskites

Nature Nanotechnology, Journal Year: 2020, Volume and Issue: 15(12), P. 969 - 985

Published: Dec. 1, 2020

Language: Английский

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High-performance quasi-2D perovskite light-emitting diodes: from materials to devices

Light Science & Applications, Journal Year: 2021, Volume and Issue: 10(1)

Published: March 19, 2021

Abstract Quasi-two-dimensional (quasi-2D) perovskites have attracted extraordinary attention due to their superior semiconducting properties and emerged as one of the most promising materials for next-generation light-emitting diodes (LEDs). The outstanding optical originate from structural characteristics. In particular, inherent quantum-well structure endows them with a large exciton binding energy strong dielectric- quantum-confinement effects; corresponding transfer among different n -value species thus results in high photoluminescence quantum yields (PLQYs), particularly at low excitation intensities. review herein presents an overview quasi-2D perovskite materials, spectral tunability methodologies thin films, well application high-performance LEDs. We then summarize challenges potential research directions towards developing stable PeLEDs. provides systematic timely summary community deepen understanding resulting LED devices.

Language: Английский

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Materials chemistry and engineering in metal halide perovskite lasers

Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(3), P. 951 - 982

Published: Jan. 1, 2020

The invention and development of the laser have revolutionized science, technology, industry. Metal halide perovskites are an emerging class semiconductors holding promising potential in further advancing technology. In this Review, we provide a comprehensive overview metal perovskite lasers from viewpoint materials chemistry engineering. After introduction to physics perovskites, present diverse optical cavities for lasers. We then comprehensively discuss various with particular functionalities, including tunable lasers, multicolor continuous-wave single-mode subwavelength random polariton arrays. Following description strategies improving stability reducing toxicity is provided. Finally, future research directions challenges toward practical technology applications provided give outlook on field.

Language: Английский

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Inorganic Halide Perovskite Solar Cells: Progress and Challenges

Advanced Energy Materials, Journal Year: 2020, Volume and Issue: 10(23)

Published: April 27, 2020

Abstract All‐inorganic perovskite semiconductors have recently drawn increasing attention owing to their outstanding thermal stability. Although all‐inorganic solar cells (PSCs) achieved significant progress in recent years, they still fall behind prototype organic–inorganic counterparts severe energy losses. Therefore, there is considerable interest further improving the performance of PSCs by synergic optimization films and device interfaces. This review article provides an overview inorganic terms lead‐based lead‐free composition. The physical properties as well hole/electron transporting materials are discussed unveil important role composition engineering interface modification. Finally, a discussion prospects challenges for near future presented.

Language: Английский

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Metal Halide Perovskites for Laser Applications

Advanced Functional Materials, Journal Year: 2021, Volume and Issue: 31(16)

Published: Feb. 12, 2021

Abstract Metal halide perovskites have drawn tremendous attention in optoelectronic applications owing to the rapid development photovoltaic and light‐emitting diode devices. More recently, these materials are demonstrated as excellent gain media for laser due their large absorption coefficient, low defect density, high charge carrier mobility, long diffusion length, photoluminescence quantum yield, Auger recombination rate. Despite great progress applications, of perovskite lasers is still its infancy realization electrically pumped has not yet been demonstrated. To accelerate perovskite‐based lasers, it important understand fundamental photophysical characteristics materials. Here, structure behavior various discussed. Then, effects dynamics electron–phonon interaction on population inversion different types analyzed. Further, recent advances also highlighted. Finally, a perspective material design presented remaining challenges

Language: Английский

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