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Issue 6, 2019
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A stimuli-responsive and chemically tunable organic microcrystal laser switch

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Abstract

We demonstrated a stimuli-responsive and chemically switchable organic microbelt laser through reversible protonation–deprotonation reactions. The parent microbelt cavity together with the optically allowed 0–1 transition of H-aggregates enables a microlaser to operate at 585 nm. Upon HCl vapor treatment, the protonation of surface molecules shifts the lasing wavelength to 560 nm, generating an intensity contrast ratio >105, accompanied by a sharp color change from orange (deprotonated) to green (protonated). When treated with HCl–NH3 vapor, the protonation–deprotonation reactions lead to a reversible microlaser switch between 585 nm and 560 nm with good reproducibility and photostablity, making them attractive in high-throughput chemical and biological sensing applications.

Graphical abstract: A stimuli-responsive and chemically tunable organic microcrystal laser switch

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Publication details

The article was received on 03 Nov 2018, accepted on 13 Dec 2018 and first published on 14 Dec 2018


Article type: Communication
DOI: 10.1039/C8CC08298G
Chem. Commun., 2019,55, 814-817

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    A stimuli-responsive and chemically tunable organic microcrystal laser switch

    X. Cai, Z. Xu, X. Zheng, C. Ran, P. Liu, X. He, X. Jin, Q. Liao and H. Fu, Chem. Commun., 2019, 55, 814
    DOI: 10.1039/C8CC08298G

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