Three-dimensional direct lithography of stable perovskite nanocrystals in glass

Science, Journal Year: 2022, Volume and Issue: 375(6578), P. 307 - 310

Published: Jan. 20, 2022

Material composition engineering and device fabrication of perovskite nanocrystals (PNCs) in solution can introduce organic contamination entail several synthetic, processing, stabilization steps. We report three-dimensional (3D) direct lithography PNCs with tunable bandgap glass. The halide ion distribution was controlled at the nanoscale ultrafast laser-induced liquid nanophase separation. exhibit notable stability against ultraviolet irradiation, solution, high temperatures (up to 250°C). Printed 3D structures glass were used for optical storage, micro-light emitting diodes, holographic displays. proposed mechanisms both PNC formation tunability verified.

Language: Английский

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Bright and Stable Quantum Dot Light‐Emitting Diodes

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(4)

Published: Oct. 27, 2021

Quantum dot light-emitting diodes (QLEDs) are one of the most promising candidates for next-generation displays and lighting sources, but they barely used because vulnerability to electrical thermal stresses precludes high brightness, efficiency, stability at current density (J) regimes. Here, bright stable QLEDs on a Si substrate demonstrated, expanding their potential application boundary over present art. First, tailored interface is granted quantum dots, maximizing yield mitigating nonradiative Auger decay multiexcitons generated high-J Second, heat-endurable, top-emission device architecture employed optimized based optical simulation enhance light outcoupling efficiency. The multilateral approaches realize that red top-emitting exhibit maximum luminance 3 300 000 cd m-2 , efficiency 75.6 A-1 an operational lifetime 125 h initial brightness 100 which highest values reported so far.

Language: Английский

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Industry outlook of perovskite quantum dots for display applications

Nature Nanotechnology, Journal Year: 2022, Volume and Issue: 17(8), P. 813 - 816

Published: July 22, 2022

Language: Английский

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Current Advances in Photodynamic Therapy (PDT) and the Future Potential of PDT-Combinatorial Cancer Therapies

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(2), P. 1023 - 1023

Published: Jan. 13, 2024

Photodynamic therapy (PDT) is a two-stage treatment that implies the use of light energy, oxygen, and light-activated compounds (photosensitizers) to elicit cancerous precancerous cell death after activation (phototoxicity). The biophysical, bioengineering aspects its combinations with other strategies are highlighted in this review, both conceptually as they currently applied clinically. We further explore recent advancements PDT nanotechnology, including quantum dots innovative photosensitizers or energy donors well combination radiotherapy immunotherapy future promising cancer treatments. Finally, we emphasize potential significance organoids physiologically relevant models for PDT.

Language: Английский

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3D printing of inorganic nanomaterials by photochemically bonding colloidal nanocrystals

Science, Journal Year: 2023, Volume and Issue: 381(6665), P. 1468 - 1474

Published: Sept. 28, 2023

3D printing of inorganic materials with nanoscale resolution offers a different processing pathway to explore devices emergent functionalities. However, existing technologies typically involve photocurable resins that reduce material purity and degrade properties. We develop general strategy for laser direct nanomaterials, as exemplified by more than 10 semiconductors, metal oxides, metals, their mixtures. Colloidal nanocrystals are used building blocks photochemically bonded through native ligands. Without resins, this bonding process produces arbitrary three-dimensional (3D) structures large mass fraction (~90%) high mechanical strength. The printed preserve the intrinsic properties constituent create structure-dictated functionalities, such broadband chiroptical responses an anisotropic factor ~0.24 semiconducting cadmium chalcogenide nanohelical arrays.

Language: Английский

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InP colloidal quantum dots for visible and near-infrared photonics

Nature Reviews Materials, Journal Year: 2023, Volume and Issue: 8(11), P. 742 - 758

Published: Oct. 12, 2023

Language: Английский

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Aggregation-Induced Emission-Active Nanostructures: Beyond Biomedical Applications

ACS Nano, Journal Year: 2023, Volume and Issue: 17(3), P. 1845 - 1878

Published: Jan. 19, 2023

The discovery of aggregation-induced emission (AIE) phenomenon in 2001 has had a significant impact on materials development across different research disciplines. AIE-active have been widely exploited for various applications optoelectronics, sensing, biomedical, and stimuli-responsive systems, etc. This is made possible by integrating AIE features with other fields science engineering, such as nanoscience nanotechnology. extensively employed, particularly biomedical applications, biosensing, bioimaging, theranostics. However, AIE-based nanotechnology comparatively less, although there increasing activities recent years. Given the significance potential marriage between hallmark development, this review article summarizes showcases latest efforts nanomaterials, including nanomaterials synthesis their nonbiomedical functional coatings, systems. A perspective outlook nanostructured relevant will be provided, giving an insight into how to design nanostructures well beyond domain.

Language: Английский

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Precision synthesis of a CdSe semiconductor nanocluster via cation exchange

Nature Synthesis, Journal Year: 2023, Volume and Issue: 2(10), P. 949 - 959

Published: June 5, 2023

Language: Английский

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A reactivity-controlled epitaxial growth strategy for synthesizing large nanocrystals

Nature Synthesis, Journal Year: 2023, Volume and Issue: 2(3), P. 296 - 304

Published: Jan. 12, 2023

Language: Английский

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Toward Next‐Generation Smart Windows: An In‐depth Analysis of Dual‐Band Electrochromic Materials and Devices

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(11)

Published: Jan. 16, 2024

Abstract As the proportion of buildings energy consumption increases, issue low utilization efficiency becomes increasingly prominent. Approximately 45% is lost through doors and windows, a significant concern that has drawn society's attention to potential electrochromic technology, which can regulate light transmittance absorption effectively. Specifically, dual‐band materials offer promising solution this issue, as they manipulate transmission ratios visible (VIS) near‐infrared (NIR) obtain “bright,” “cold,” “warm,” “dark” independent modes. However, research on smart windows still infant, many challenges including performance assembly issues, are obstacles advancement application technology. This review clarifies basic characteristics configurations, operational mechanisms, assessment parameters. In‐depth examination methods for achieving modulation provided, along with an analysis solutions issues. Finally, future prospects (ESWs) underscored. The hope eventually facilitate commercial these significantly contribute creation modern, energy‐efficient buildings.

Language: Английский

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