Intersystem Crossing in a Carbazole-Based Room Temperature Phosphorescent Luminophore Investigated by Non-Adiabatic Dynamics.† DOI Creative Commons
Pelin Ulukan, Elise Lognon, Şaron Çatak

et al.

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(33), P. 22261 - 22268

Published: Jan. 1, 2024

The use of phosphorescent luminophores is highly beneficial in diverse high-technological and biological applications. Yet, because the formally forbidden character intersystem crossing, heavy metals or atoms usually necessary to achieve high quantum yields. This choice imposes serious constraints terms device cost inherent toxicity. In this contribution we resort density functional based surface hopping non-adiabatic dynamics a potential organic luminophore intended for room-temperature We confirm that crossing operative ps time-scale without requiring activation large-scale movements, thus confirming suitability El Sayed-based strategy rational design fully emitters.

Language: Английский

New horizons in phosphorus-based emitters: From circularly polarized fluorescence to room-temperature phosphorescence DOI

Bo Yang,

Suqiong Yan,

Shirong Ban

et al.

Chinese Chemical Letters, Journal Year: 2025, Volume and Issue: unknown, P. 110837 - 110837

Published: Jan. 1, 2025

Language: Английский

Citations

1
Unveiling the potential of triphenylphosphine salts in tuning organic room temperature phosphorescence DOI
Yiming Zhang,

Xiaomei Wu,

Shujuan Liu

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(70), P. 9328 - 9339

Published: Jan. 1, 2024

This article summarizes the potential of TPP salts in tuning RTP properties and their applications multi-level information encryption, high-level anticounterfeiting tags, X-ray scintillators.

Language: Английский

Citations

6
Dual-Ring-Locking Strategy Enables Persistent Blue Room Temperature Phosphorescence in Benzo[b]phospholiums DOI
Bo Yang,

Suqiong Yan,

Shirong Ban

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Commercial phosphines and phosphoniums were commonly reported to have unstable triplet dissipation because of the flexible C-P pyramidal geometry, resulting in extremely weak or no phosphorescence. To boost populations stability by restricting molecular motion rebuilding electronic structures, we that dual-ring-locking strategy could enable elevated intersystem crossing (ISC) radiation for rigid benzo[b]phospholium configuration, exhibiting intense persistent room temperature phosphorescence (RTP) poly(vinyl alcohol) (PVA). Among them, dual-ring-locked [P1]+[Cl]- showed near-ultraviolet fluorescence maximized at 400 nm dichloromethane blue RTP emission 453 (Φphos ≈ 12.4%, τphos > 1200 ms) PVA matrix. In contrast, [P2]+[Cl]- possessed a single ring-locked nucleus had red-shifted < 1.8%, = 74.2 ms). Time-dependent density functional theory (TD-DFT) disclosed improved spin-flipping benefited from integrated π-π*/n-π* transition, rational split energy, excited states. The impressive OU-RTP duration function as an afterglow pattern optical encryption emitting layer light-emitting diode (LED) applications.

Language: Английский

Citations

0
Water‐Soluble Luminescent Polymers with Room‐Temperature Phosphorescence Based on the α‐Amino Acids DOI
Chengju Sheng,

Xiujuan Gao,

Yanjun Ding

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: 45(16)

Published: May 15, 2024

Nonconventional luminophores have received increasing attention, owing to their fundamental importance, advantages in outstanding biocompatibility, easy preparation, environmental friendliness, and potential applications sensing, imaging, encryption. Purely organic molecules with fluorescence room-temperature phosphorescence (RTP) emerged as a new library of benign afterglow agents. However, the cost, toxicity, high reactivity, poor stability materials also limit practical applications. Therefore, some natural products, synthetic compounds, biomolecules entered horizons people. The as-designed exhibits sky blue green emission RTP (a lifetime 343 ms quantum 15.3%) under air condition. This study presents an for biological imaging anti-counterfeiting encryption based on amino acids, maleic anhydride 4-vinylbenzenesulfonic acid sodium salt hydrate. provides strategy nonconventional designing synthesizing pure materials.

Language: Английский

Citations

1
Proton transfer induced persistent triplet charge transfer phosphorescence in molecule-doped polymer systems DOI
Shu‐Lin Liu, Chensheng Li,

Liyun Liao

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 497, P. 154819 - 154819

Published: Aug. 14, 2024

Language: Английский

Citations

1
Intersystem Crossing in a Carbazole-Based Room Temperature Phosphorescent Luminophore Investigated by Non-Adiabatic Dynamics.† DOI Creative Commons
Pelin Ulukan, Elise Lognon, Şaron Çatak

et al.

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: 26(33), P. 22261 - 22268

Published: Jan. 1, 2024

The use of phosphorescent luminophores is highly beneficial in diverse high-technological and biological applications. Yet, because the formally forbidden character intersystem crossing, heavy metals or atoms usually necessary to achieve high quantum yields. This choice imposes serious constraints terms device cost inherent toxicity. In this contribution we resort density functional based surface hopping non-adiabatic dynamics a potential organic luminophore intended for room-temperature We confirm that crossing operative ps time-scale without requiring activation large-scale movements, thus confirming suitability El Sayed-based strategy rational design fully emitters.

Language: Английский

Citations

0