An interface-assembled turn-on fluorescent nanofilm for highly selective detection of trifluoroacetic acid vapour via protonation-modulated ICT

Chemical Communications 2026

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Authors: Ling Zhang, Zebiao Qiu, Ruijuan Wen, Pan He, Hong Tian, Lingya Peng, Rui Cao, Haonan Peng, Yu Fang
DOI: 10.1039/d5cc07311a
Cited by: 2
References: 42

Abstract

Turn-on fluorescent nanofilms are attractive for gas sensing but rare, because protonation of donor-π-acceptor systems usually promotes charge separation and quenches emission. Here a gas-liquid interface-assembled DTH-DFP nanofilm shows protonation-induced blue-shifted turn-on fluorescence to trifluoroacetic acid (TFA) vapour, offering a transparent, fast, and sensitive platform (LOD 1.48 ppm).

Fields of Study & Subjects

Luminescence and Fluorescent Materials Carbon and Quantum Dots Applications Molecular Sensors and Ion Detection

Publication details

Journal / source
Chemical Communications
Publisher
Royal Society of Chemistry (RSC)
Volume
62
Issue
20
Pages
5739–5743
Publication date
1 January 2026
Language
EN