Molecular Intercalation‐Induced Two‐Phase Evolution Engineering of 1T and 2H‐MS₂ (M = Mo, V, W) for Interface‐Polarization‐Enhanced Electromagnetic Absorbers

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

Published: May 10, 2024

Abstract Polarization at interfaces is an important loss mechanism for electromagnetic wave (EMW) attenuation, though the motion behavior of carriers in composed different types conductors has yet to be investigated. Tuning phase structure transition metal dichalcogenides (TMDs) MS 2 (M = Mo, V, W) by organics small molecule intercalation achieve modulation interfacial effective strategy, where 1T‐MS exhibits metallic properties and 2H‐MS semiconducting properties. To exclude contribution intrinsic TMDs materials, three (MoS , VS WS ), which also possess transitions, are Among them, composite excellent EMW absorption performance under synergistic effect polarization conduction loss. 1T‐MoS /MOF‐A best with RL min −61.07 dB a thickness 3.0 mm EAB 7.2 GHz 2.3 mm. The effectiveness using 1T‐phase 2H‐phase demonstrated, analysis carrier during

Language: Английский

---

Aggregation Enhanced Thermally Activated Delayed Fluorescence through Spin‐Orbit Coupling Regulation

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(29)

Published: May 3, 2024

Abstract Integrating aggregation‐induced emission (AIE) into thermally activated delayed fluorescence (TADF) emitters holds great promise for the advancement of highly efficient organic light emitting diodes (OLEDs). Despite recent advancements, a thorough comprehension underlying mechanisms remains imperative practical application such materials. In this work, we introduce novel approach aimed at modulating TADF process by manipulating dynamic processes in excited states through aggregation effect. Our findings reveal that not only enhances both prompt and simultaneously but also imposes constraints on molecular reorientation. This constraint reinforces spin‐orbit coupling reduces energy gap between singlets triplets. These insights deepen our understanding fundamental governing effect materials provide valuable guidance design high‐efficiency photoluminescent

Language: Английский

---

Fluorescent Metal Nanoclusters for Explosive Detection: A Review

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 180, P. 117919 - 117919

Published: Aug. 17, 2024

Language: Английский

---

Labeling selectivity of lipid droplets fluorescent probes: Twisted intramolecular charge transfer (TICT) vs intramolecular charge transfer (ICT)

Biosensors and Bioelectronics, Journal Year: 2024, Volume and Issue: 264, P. 116624 - 116624

Published: Aug. 7, 2024

Language: Английский

---

Deciphering the photophysical properties of naphthalimide derivatives using ultrafast spectroscopy

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(5), P. 4607 - 4613

Published: Jan. 1, 2024

The TICT mechanism of naphthalimide derivative was investigated by ultrafast spectroscopy, unraveling the dielectronic constant controlled excited state evolution from LE/ICT to accompanied molecular rearrangement.

Language: Английский

---

Multi-stimuli-responsive cyanostilbene derivatives: Their fluorescent and mechanochromic properties, and potential application in water sensing and anti-counterfeiting

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: 318, P. 124474 - 124474

Published: May 16, 2024

Language: Английский

---

Triplet Excited-State Dynamics in Benzothiadiazole-Based Thermally Activated Delayed Fluorescence Compound

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(10), P. 2885 - 2892

Published: March 6, 2024

The "hot exciton" thermally activated delayed fluorescence (TADF) materials have attracted considerable research interest for their utilization of high-lying triplet excitons. In this work, we reported the mechanism photoluminescence by revealing spectral evolution from singlet to states in TADF molecules transient absorption (TA) spectra and sensitization experiments. internal conversion intersystem crossing are much faster than reverse (RISC), so that (Tn) difficult accumulate be observed spectra. contrast, emergence time-resolved emission demonstrates existence a RISC process (hRISC) Tn S1. Triplet experiments successfully identified features T1 state TA This work sheds light on critical factors systematic design these achieve high quantum yield.

Language: Английский

---

Impact of the phenyl on fluorescence properties of cyanostilbene modified tetraphenylethene compounds

Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: 334, P. 124688 - 124688

Published: March 24, 2024

Language: Английский

---

Terminal halogen-containing rod-like liquid crystals: Synthesis, self-assembly, photophysical and mechanochromism properties

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Journal Year: 2024, Volume and Issue: 320, P. 124676 - 124676

Published: June 17, 2024

Language: Английский

---

Amyloid-β aggregates-restricted rotational motion amplifies photo-catalytic activity from quinolinium derivatives

Nano Today, Journal Year: 2024, Volume and Issue: 58, P. 102434 - 102434

Published: Aug. 1, 2024

Language: Английский

---