Bright Circularly Polarized Mechanoluminescence from 0D Hybrid Manganese Halides

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(15)

Published: Jan. 17, 2024

Hybrid metal halides (HMHs) with efficient circularly polarized luminescence (CPL) have application prospects in many fields, due to their abundant host-guest structures and high photoluminescence quantum yield (PLQY). However, CPLs HMHs are predominantly excited by light or electricity, limiting use multivariate environments. It is necessary explore a novel excitation method extend the of chiral as smart stimuli-responsive optical materials. In this work, an enantiomeric pair 0D hybrid manganese bromides, [H

Language: Английский

---

Mechanoluminescent functional devices: Developments, applications and prospects

Nano Energy, Journal Year: 2024, Volume and Issue: 122, P. 109325 - 109325

Published: Jan. 23, 2024

Language: Английский

---

Self‐Recoverable, Highly Repeatable, and Thermally Stable Mechanoluminescence for Dual‐Mode Information Storage and Photonic Skin Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(32)

Published: April 2, 2024

Abstract Mechanically driven light generation is an intriguing phenomenon holding great promise in various fields. However, the existing mechanoluminescence (ML) materials always suffer from poor self‐recoverability, low repeatability, and environmental disturbance, severely hindering their practical applications. In this work, a self‐activating ML system based on interfacial triboelectrification created by compositing Ca 6 BaP 4 O 17 :0.02Ce 3+ powders into flexible polydimethylsiloxane (PDMS) matrix. With no need for pre‐irradiation, composite film emits self‐charging simultaneously response to rubbing or stretching stimuli. Accordingly, /PDMS exhibits desirable self‐recovery repeatable performance, which could still be recorded (or observed naked eyes) even after ca. 1000 cycles with fast period of < 0.1 s. Furthermore, possesses good thermal stability temperature range 298 473 K. The developed applicable fields, dual‐mode information storage photonic skin devices are as representatives. Compared oxide‐based (the signal disappears only several tens rapid mechanics cycles), work breaks through bottleneck issues stability, significantly advances field.

Language: Английский

---

Phosphor‐in‐Ceramic‐Converted Laser‐Driven Near‐Infrared Light Sources for Multiple Intelligent Spectroscopy Applications

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

Published: Nov. 3, 2024

Abstract Ultrabright broadband near‐infrared (NIR) phosphor‐converted laser diode (pc‐LD) as a light source is increasingly essential for improving the sensitivity and spatial resolution of intelligent NIR spectroscopy technologies. However, performance pc‐LD greatly hindered by low external quantum efficiency (EQE) poor thermal resistance phosphor materials. Herein, highly stable phosphor‐in‐ceramic (PiC) film deposited on high conductivity substrate, in which NIR‐emitting Ca 3 MgHfGe O 12 :Cr 3+ incorporated into glass‐crystallized Ga 2 Ge ceramic matrix, along with formation new type PiC composite material efficiency, absorbance, conductivity, designed prepared. The obtained exhibits an impressive EQE 57.7%, 17.1 W m −1 K , wheel demonstrates emission exceeding 5 when excited 450 nm laser. Finally, groundbreaking electrically driven device based achieves 1.6 output, enabling multiple applications archaeology night vision imaging. This work paves way advancing sources diverse range photonic applications.

Language: Английский

---

Multiple Defect‐Induced High‐Resolution Near‐Infrared Mechanoluminescent Materials for Non‐Destructive Detection of Blood Glucose and Lipids

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(50)

Published: Nov. 6, 2024

Mechanoluminescence (ML) materials, known for their ability to convert mechanical energy into light, are increasingly recognized potential applications, such as in intelligent stress sensing, vivo bioimaging, and non-destructive monitoring. However, the low signal-to-noise ratio (SNR) narrow-band emission of single-defect-induced ML materials usually limit biological-related practical applications. Here, these limitations will be addressed by modulating microstructure evolution Y

Language: Английский

---

Excitation-mode-selective emission through multiexcitonic states in a double perovskite single crystal

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

Published: Jan. 2, 2025

Abstract Low-dimensional lead-free metal halide perovskites are highly attractive for cutting-edge optoelectronic applications. Herein, we report a class of scandium-based double perovskite crystals comprising antimony dopants that can generate multiexcitonic emissions in the ultraviolet, blue, and yellow spectral regions. Owing to zero-dimensional nature crystal lattice minimizes energy crosstalk, different excitonic states be selectively excited by ultraviolet light, X-ray irradiation, mechanical action, enabling dynamic control steady/transient-state features modulating excitation modes. Remarkably, transparent exhibits efficient white photoluminescence (quantum yield >97%), blue emission with long afterglow (duration >9 h), high-brightness self-reproducible violet-blue mechanoluminescence. These findings reveal exceptional capability low-dimensional integrating various luminescence, offering exciting opportunities multi-level data encryption all-in-one authentication technologies.

Language: Английский

---

Cr3+-activated broadband near-infrared mechanoluminescence in garnet compound

Nano Energy, Journal Year: 2023, Volume and Issue: 116, P. 108811 - 108811

Published: Aug. 21, 2023

Language: Английский

---

Self-recoverable NIR mechanoluminescence from Cr3+ doped perovskite type aluminate

Advanced Powder Materials, Journal Year: 2023, Volume and Issue: 3(2), P. 100165 - 100165

Published: Nov. 8, 2023

Mechanoluminescent (ML) materials, which have the ability to convert mechanical energy optical energy, found huge promising applications such as in stress imaging and anti-counterfeiting. However, main reported ML phosphors are based on trap-related ones, thus hindering practical due requirement of complex light pre-irradiation process. Here, a self-recoverable near infrared (NIR) material LaAl1-xO3: xCr3+ (x = 0.2 %, 0.4 0.6 0.8 1.0 % 1.2 %) has been developed. Based preheating method corresponding performance analysis, influences residual carriers eliminated detailed dynamic luminescence process analysis is realized. Systematic experiments conducted reveal origin emissions, demonstrating that dictated more by non-centrosymmetric piezoelectric crystal characteristic. In general, this work provided significant references for exploring efficient NIR may provide potential anti-counterfeiting bio-stress sensing.

Language: Английский

---

Intense NIR mechanoluminescence from Al3+-regulated MgGa2O4: Cr3+

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 491, P. 152155 - 152155

Published: May 11, 2024

Language: Английский

---

Near‐Infrared Mechanoluminescence from Cr³⁺‐Doped Spinel Nanoparticles for Potential Oral Diseases Detection

Small, Journal Year: 2024, Volume and Issue: 20(45)

Published: Aug. 10, 2024

Mechanoluminescence (ML) phosphors have found various promising utilizations such as in non-destructive stress sensing, anti-counterfeiting, and bio imaging. However, the reported NIR MLs predominantly been limited to bulky particle size weak ML intensity, hindering further practical applications. For this regard, a nano-sized ZnGa

Language: Английский

---