Boosting the Superoxide Anion Radical Generation of Triphenylamine- and Benzothiadiazole-based Supramolecular Organic Framework for Improving Photocatalytic Performance

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

The construction of three-component supramolecular organic frameworks (SOFs) remains a challenge in this field due to the complex noncovalent interactions involved and limitations existing preparation methods. In study, we designed synthesized two photosensitive modules, with naphthalene-modified triphenylamine derivative (NA-TPA) as donor unit methylated-viologen-modified benzothiadiazole (DPBT) acceptor unit, which can self-assemble into two-dimensional framework (SOF) through encapsulation-enhanced donor–acceptor interaction cucurbit[8]uril (CB[8]) water. SOF not only nanosheet morphology water but also exhibit excellent luminescence enhancement performance. Compared monomers NA-TPA DPBT, effectively promote electron transfer greatly improve ability produce superoxide anion radicals (O2•–), be used photocatalyze thiol–ene cross-coupling reaction yield up 90%. This work provides useful exploration for SOFs photocatalytic application.

Language: Английский

---

Chiral europium halides with high-performance magnetic field tunable red circularly polarized luminescence at room temperature

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

Published: March 14, 2025

Chiral organic-inorganic hybrid metal halides as promising circularly polarized luminescence (CPL) emitter candidates hold great potential for high-definition displays and future spin-optoelectronics. The recent challenge lies primarily in developing high-performance red CPL emitters. Here, coupling the f-f transition characteristics of trivalent europium ions (Eu3+) with chirality, we construct chiral Eu-based halides, (R/S-3BrMBA)3EuCl6, which exhibit strong predictable emission large photoluminescence quantum yield (59.8%), narrow bandwidth (≈2 nm), long lifetime ms), together dissymmetry factor |glum| 1.84 × 10−2. Compared previously reported these show highest brightness. Furthermore, degree polarization (R/S-3BrMBA)3EuCl6 can be manipulated by external magnetic field. Particularly, benefiting from field-generated Zeeman splitting spin mixing at exciton states, an anomalously positive magneto-photoluminescence was observed room temperature. This work provides efficient strategy constructing both pure-red It also opens door rare-earth toward optoelectronic spintronic applications. perovskites are materials luminescence. Here authors present leading to magneto-chiroptical properties.

Language: Английский

---

Controlled Assembly of Chiral One-Dimensional Helical Coordination Polymers for Circularly Polarized Luminescence and Polydimethylsiloxane-Assisted Signal Inversion and Amplification

ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 1786 - 1794

Published: April 9, 2025

Language: Английский

---

Novel triazine derivatives with D-A architecture: Synthesis, structure, photophysical properties and application in LEDs

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: unknown, P. 116193 - 116193

Published: Dec. 1, 2024

Language: Английский

---