Integrated Multifunctional Platform with X-ray and Near-Infrared Driven Photochromic Behavior for Reversible Quad-Mode Optical Imaging

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 820 - 828

Published: Jan. 31, 2025

Noninvasive optical imaging techniques, including X-ray and near-infrared (NIR), hold significant value for scientific research industrial applications. However, there is still a lack of convenient platform that integrates NIR in both bright- dark-field Here, rare-earth ion-doped LaNbO4:Pr,Er photochromic luminescent material developed, integrating X-ray-induced coloration, NIR-induced bleaching, photoluminescence, luminescence modulation. Under alternating light irradiation, the reflectivity intensity can be reversibly tuned to display four states: white, black, dark, bright. By utilizing switchable states, quad-mode bright dark fields achieved. photobleaching imaging, when employed as adjuncts has potential significantly reduce radiation-induced damage biological tissues. These results provide unique insights designing advanced materials photonic storage technologies toward multiwavelength, multienvironment, multimode noninvasive imaging.

Language: Английский

---

Light‐Driven Ion Intercalation in Carbon Nitride for High‐Temperature‐Resilient Information Storage and Encryption

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

Published: Jan. 6, 2025

Abstract Information storage and encryption systems often suffer from degradation instability at elevated temperatures. This work introduces a robust ion‐based information system that demonstrates exceptional temperature resistance up to 350 °C, achieved through the immobilization of monoatomic cations (Li + , Na K ) in carbon nitride via light exposure. By creating electron trap states within matrix, exposure enables photo‐charging material, transforming it into capacitor capable dynamic, reversible color changes for encoding encrypting information. Notably, ionic state material serves as foundation data storage, offering an inherent security feature where trapped electrons are quenched upon air encrypted can be reactivated charging. study establishes novel paradigm high‐temperature using control ion movement with precision security.

Language: Английский

---

Selective Photochromism of 2,6-Di(1,6-naphthyridin-2-yl)pyridine-Based Zinc(II)-Complexes by Varying the Tethers of Dicarboxylate Coligands: Significance of Anion−π Interactions on Photo-Induced Electron Transfer

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

---

The Optical Encoder Based on Mechanoluminescent Materials and Application in Dual‐Key Encryption

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

Published: Jan. 29, 2025

Abstract Optical information encryption is an effective security strategy currently used to protect data and prevent leakage. However, the optical technology based on mechanoluminescent (ML) materials faces challenges of single mode lack systematic dual‐key decryption strategies. In this study, a three‐layer structure encoder proposed using porous ML material as luminescent layer, quartz transparent tube with pressure‐sensing capabilities stress‐loading photodetector recognition layer. A system evolution mechanism Ba‐Gua constructed. The encoding process completed within micro darkroom fabricated 3D printing technology. This incorporates virtual position in conjunction trigram orientation, requiring two keys for correct decryption: “Combination Relative Intensity Ratio” “Virtual Position Space Code”. By linking emission spectrum information, dynamic, rewritable hybrid digital Chinese character established. offer new directions concealing confidential multidimensional applications.

Language: Английский

---

BaMgSiO4-based composites with photochromic and persistent luminescent behaviors for advanced anti-counterfeiting applications

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

---

Realizing temperature-gated photochromic NaYTiO4:Bi3+ for a time–temperature indicator

Science China Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Language: Английский

---

Unlocking the key role of electric field stimulus in ferroelectric photochromic phosphor for partitioned optical storage and encrypted transmission

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161568 - 161568

Published: March 1, 2025

Language: Английский

---

Guest Molecule Induced FRET Enhancement of Photochromic Pillar[5]arene‐Based Phenothiazine Derivatives

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Comprehensive Summary In recent years, the study of photochromic behavior phenothiazine derivatives has not only enriched variety color‐changing materials but also provided new donor molecules for construction Förster Resonance Energy Transfer (FRET). This advancement broadens application potential and offers fresh perspective FRET research. Herein, pillar[5]arene‐linked biphenothiazine derivative ( DPP5 ) was synthesized, while p ‐dibenzyl‐linked DPDB butyl‐linked DPB were designed comparative study. The demonstrated by UV‐vis spectra, electron paramagnetic resonance (EPR) chemical oxidation method, showing transformation molecule into radical cation •+ subsequently dication 2+ . Furthermore, a system constructed using species as energy Nile red (NiR) acceptor. introduction guest molecules, 1,6‐dibromohexane 1,6‐DBH 1,10‐dibromodecane 1,10‐DBD ), above enhanced transfer efficiency increasing aggregation degree utilizing cavity pillar[5]arene through host‐guest interaction. system, along with strategy to enhance properties, will contribute development novel materials.

Language: Английский

---

Stimuli-responsive luminescence in doped inorganic crystals

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(13)

Published: March 1, 2025

Inorganic crystals doped with luminescent ions have attracted considerable interest due to their abundant luminescence spectra. Particularly, these materials can show highly variable in response external stimuli, rendering widespread applications ranging from super-resolution techniques high-security information encryption. In this Perspective, we highlight the recent developments of controlling optical inorganic under various including light, temperature, water/humidity, and mechanical force. Moreover, delve into underlying mechanism discuss relevant applications, simultaneously pointing out challenges future directions for designing superior stimuli-responsive materials.

Language: Английский

---

Promising Coloration Composite Strategy to Multicolor Photochromism for On‐Demand Information Displays

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

Published: April 21, 2025

Abstract Multicolor photochromic materials are highly attractive in high‐end intelligent terminal products for on‐demand information displays. It is extremely challenging to realize multicolor photochromism by constructing multiple F‐centers a single inorganic host through traditional trap engineering strategy. Here, promising design strategy demonstrated develop via manipulating chemical coloration (CC) photochromics. To validate this, the colored BaMgSiO 4 synthesized adding different colorants (Co, Cr, Nd, etc.), displaying both bright color and high efficiency with fast response speed sunlight. Upon UV or sunlight irradiation, (PC) can effectively composite CC, then achieving reversible chromism (deep blue gray black @Co, dark green reddish brown @Cr, pale purple deep @Nd, etc.) precise regulation of light response. The designed components exhibit display detection, showing great potential ceramic backplate dosimetry. These results provide new perspective designing high‐quality systems, greatly enriching aesthetic versatility flexibility smart wearable devices.

Language: Английский

---