Turn-on fluorescent nanofilm detects trifluoroacetic acid vapor, indicating enhanced gas sensing capabilities.
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...
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Zhang et al. (2026) studied this question.
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