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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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Supplementary files

Article information


Submitted
03 Nov 2018
Accepted
13 Dec 2018
First published
14 Dec 2018

Chem. Commun., 2019,55, 814-817
Article type
Communication

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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