Full-color dynamic volumetric displays with tunable upconversion emission from RE3+-doped glasses (RE = Ho, Tm, Nd, Yb) under NIR laser excitation

Light Science & Applications, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 2, 2025

Abstract Three-dimensional (3D) imaging technology holds immense potential across various high-tech applications; however, current display technologies are hindered by limitations such as restricted viewing angles, cumbersome headgear, and limited multi-user accessibility. To address these challenges, researchers actively exploring new materials techniques for 3D imaging. Laser-based volumetric displays (VDs) offer a promising solution; nonetheless, existing screen fall short in meeting key requirements long-term durability, full-color operation, scalability. In this study, we present comprehensive investigation into easily scalable rare-earth (RE 3+ ) doped monolithic glasses = Ho, Tm, Nd, Yb) capable of tunable emission using novel excitation modulation technique under 808 nm 980 laser demonstrate their implementation laser-based VD through prototyping. By controlling the movement lasers’ pulses galvanometer mirrors with waveform generators, our system generates images simple complex shapes high purity red, green, blue (RGB) colors. These can be manipulated, including actions like translation, rotation, expansion, sequential within glass material. Our findings showcase glass-based dynamic VDs revolutionizing technology, offering superior color purity, vividness, performance comparison to conventional systems.

Language: Английский

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Cross Relaxation Enables Spatiotemporal Color‐Switchable Upconversion in a Single Sandwich Nanoparticle for Information Security

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(13)

Published: Dec. 27, 2023

Abstract Smart control of ionic interaction dynamics offers new possibilities for tuning and editing luminescence properties lanthanide‐based materials. However, it remains a daunting challenge to achieve the dynamic cross relaxation mediated photon upconversion, in particular involved intrinsic photophysics is still unclear. Herein, this work reports conceptual model realize color‐switchable upconversion Tm 3+ through spatiotemporal design NaYF 4 :Gd@NaYbF :Tm@NaYF sandwich nanostructure. It shows that plays key role modulating emission colors . Interestingly, found there short temporal delay occurrence contrast spontaneous as result slight energy mismatch between relevant levels. This further enables fine color upon non‐steady state excitation. Moreover, characteristic quenching time proposed describe evolution quantitatively. These findings present deep insight into physics interactions heavy doping systems, also show great promise frontier applications including information security, anti‐counterfeiting nanophotonics.

Language: Английский

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Selectively Manipulating Interactions between Lanthanide Sublattices in Nanostructure toward Orthogonal Upconversion

Nano Letters, Journal Year: 2023, Volume and Issue: 23(13), P. 6241 - 6248

Published: April 25, 2023

Smart control of ionic interactions is a key factor to manipulate the luminescence dynamics lanthanides and tune their emission colors. However, it remains challenging gain deep insight into physics involving between heavily doped lanthanide ions in particular sublattices for luminescent materials. Here we report conceptual model selectively spatial erbium ytterbium by designing multilayer core-shell nanostructure. The interfacial cross-relaxation found be leading process quench green Er3+, red-to-green color-switchable upconversion realized fine manipulation energy transfer on nanoscale. Moreover, temporal up-transition can also lead an observation due its fast rise time. Our results demonstrate new strategy achieve orthogonal upconversion, showing great promise frontier photonic applications.

Language: Английский

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Cold‐Responsive Hyaluronated Upconversion Nanoplatform for Transdermal Cryo‐Photodynamic Cancer Therapy

Advanced Science, Journal Year: 2024, Volume and Issue: 11(19)

Published: March 14, 2024

Abstract Cryotherapy leverages controlled freezing temperature interventions to engender a cascade of tumor‐suppressing effects. However, its bottleneck lies in the standalone ineffectiveness. A promising strategy is using nanoparticle therapeutics augment efficacy cryotherapy. Here, cold‐responsive nanoplatform composed upconversion nanoparticles coated with silica – chlorin e6 hyaluronic acid (UCNPs@SiO 2 ‐Ce6‐HA) designed. This employed integrate cryotherapy photodynamic therapy (PDT) order improve skin cancer treatment synergistic manner. The appeared enhance brightness by suppressing thermal quenching. low‐temperature afforded 2.45‐fold enhancement luminescence UCNPs and 3.15‐fold increase UCNPs@SiO ‐Ce6‐HA nanoplatforms. Ex vivo tests porcine skins subsequent validation mouse tumor tissues revealed effective HA‐mediated transdermal delivery designed nanoplatforms deep tissues. After delivery, resulted optimized 79% combination These findings underscore Cryo‐PDT as truly integrated paradigm warrant further exploring interplay between PDT bright unlock their full potential therapy.

Language: Английский

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Energy Migration Layer Modulated Lanthanide Luminescent Nanoparticles Toward Multimode Ratio Fluorescence Thermometers

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(14)

Published: Feb. 10, 2024

Abstract Fluorescent temperature sensing is considered as a research hotspot in the fields of life sciences and medicine. Despite existence numerous materials, low sensitivity still limits their broader application. Herein, core‐shell‐shell structure lanthanide‐doped nanoparticles designed, which can adjust energy transfer process by controlling Yb 3+ concentration migration layer, so to generate different but regular visible upconversion near‐infrared downshifting emission modes depending on 808 or 980 nm excitation wavelengths. And migration, cross relaxation, cycling processes involved ions are analyzed summarized. Subsequently, unlike traditional thermal coupled fluorescence thermometers, under excitations selected intensity ratio combining both quenching enhancement. Thus, new type thermometer with deep penetration capability high within biological range obtained, inspire design strategy for future biosensing field.

Language: Английский

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Enabling Multimodal Luminescence in a Single Nanoparticle for X-ray Imaging Encryption and Anticounterfeiting

Nano Letters, Journal Year: 2024, Volume and Issue: 24(31), P. 9691 - 9699

Published: July 25, 2024

Multimodal luminescent materials hold great promise in a diversity of frontier applications. However, achieving the multimodal responsive luminescence at single nanoparticle level, especially besides light stimuli, has remained challenge. Here, we report conceptual model to realize by constructing both mechanoluminescence and photoluminescence nanoparticle. We show that lanthanide-doped fluoride nanoparticles are able produce excellent through X-ray irradiation, color-tunable becomes available selecting suitable lanthanide emitters core–shell–shell structure. Furthermore, design multilayer core–shell nanostructure enables emissions including radioluminescence, persistent luminescence, mechanoluminescence, upconversion, downshifting, thermal-stimulated simultaneously under multichannel excitation stimuli. These results provide new insights into mechanism induced nanocrystals contribute development smart toward imaging encryption, stress sensing, anticounterfeiting.

Language: Английский

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Full-color tuning in multi-layer core-shell nanoparticles from single-wavelength excitation

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 11, 2025

Lanthanide-based luminescent materials have shown great capabilities in addressing scientific problems encountered diverse fields. However, achieving full-color switchable output under single-wavelength irradiation has remained a daunting challenge. Here we report conceptual model to realize this aim by the temporal control of full upconversion evolution multi-layer core-shell nanostructure upon single commercial 980-nm laser, instead two or more excitation wavelengths as reported previously. We show that it is able red-to-green color change (from Er3+) non-steady state constructing cooperative modulation effect Er-Tm-Yb triple system, and out blue light Tm3+) filtering short-decay emissions via time-gating technique. The key role Tm3+ manipulating up-transition dynamics Er3+ further demonstrated. Our results present deep insight into photophysics lanthanides, help develop new generation smart toward emerging photonic applications. Multi-color emission nanoparticles usually requires multiple excite different lanthanide ions. authors tuning from wavelength through modulating energy transfer time gating.

Language: Английский

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Full-Color upconversion luminescence nanoplatform for real three-dimensional volumetric color displays

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 488, P. 150790 - 150790

Published: March 28, 2024

Language: Английский

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Upconversion luminescence and temperature sensing performance of Er3+ ions doped self-activated KYb(MoO4)2 phosphors

Journal of Rare Earths, Journal Year: 2023, Volume and Issue: 42(8), P. 1507 - 1513

Published: July 26, 2023

Language: Английский

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Multicolor Fine‐Tunable Upconversion Luminescence from a Single Nanoparticle for Full‐Color Displays with a Wide Color Gamut

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Recently, upconversion nanophosphor (UCNP)‐based displays have received increased attention, with emerging reports on transparent utilizing multicolor luminescence from single UCNPs. For these display devices, color reproducibility is one of the most essential properties and multicolor‐emitting UCNPs are required to exhibit a wide gamut (WCG) for enhanced reproducibility. However, achieving both high brightness WCG simultaneously remains challenging Here, bright red/green/blue (RGB) orthogonal luminescent core@sextuple‐shell (C@6S) showing under 800, 980, 1532 nm near‐infrared (NIR) light reported. Luminescent various C@6S 6 distinct R‐G‐B configurations investigated green‐emitting core coated red‐emitting inner shell blue‐emitting outer satisfied properties. The core‐based showed tunability widest value 94.2% National Television System Committee space among RGB‐emitting core@multishell Furthermore, potential full‐color UCNP‐polydimethylsiloxane composite NIR sources demonstrated. These findings provide criteria synthesizing exhibiting would be beneficial realization true 3D displays.

Language: Английский

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