A single fluorophore, single-component system for advancing white-light emission in aqueous media with ultrafast dynamical study

[Display omitted] •A small D-π-A probe (An-EA) with aniline, alkyne, and anthracene was synthesized and characterized.•An-EA showed major shifts in absorption/emission with solvent polarity change.•The probe achieves near-white CIE coordinates in 70 % H2O mixtures, especially in CH3CN (0.33, 0.36).•...

Full description

Saved in:
Bibliographic Details
Published in:Journal of photochemistry and photobiology. A, Chemistry. Chemistry., 2025-02, Vol.459, p.116022, Article 116022
Main Authors: Dhiman, Sukhvinder, Kumar, Vikas, Ghosh, Hirendra N., Jayamurugan, Govindasamy
Format: Article
Language:English
Subjects:
Anthracene
Excimer
Self-assembly
Single component
White-light emission
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] •A small D-π-A probe (An-EA) with aniline, alkyne, and anthracene was synthesized and characterized.•An-EA showed major shifts in absorption/emission with solvent polarity change.•The probe achieves near-white CIE coordinates in 70 % H2O mixtures, especially in CH3CN (0.33, 0.36).•Microscopic and ultrafast studies show excimer states in aggregates, causing dual emission. A polarity-sensitive single-fluorophore and -component system probe An-EA was able to generate tunable luminescence as well as white-light (0.33, 0.36) due to a broad emission spectrum containing monomer and excimer bands that are associated with nanoparticles and aggregated fiber formation, respectively in an aqueous media. In addition to the spectroscopic evidence for monomer and excimer properties in aggregated states, transient absorption spectroscopy was used to investigate charge-transfer properties between donor aniline and acceptor anthracene.
ISSN:1010-6030
DOI:10.1016/j.jphotochem.2024.116022