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Luminescence-/morphology-modulation of organic microcrystals by a protonation process

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Abstract

Organic nano/microcrystals with desirable optical/electrical properties and a regular morphology are extensively applied in various optoelectronic devices at the microscale, but the morphology/luminescence-modulation of organic microstructures remains to be a great challenge. Herein, we utilize a protonation/de-protonation process to simultaneously modulate both the luminescence and the morphology of blue-emissive two-dimensional (2D) organic microcrystals, which are self-assembled from 1,4-bis((E)-2-(3-methylpyridin-4-yl)vinyl)benzene (MSP) by a facile solution-exchange method. Impressively, 1D color-tunable MSP·nHCl (n is an integer) organic microwires can be obtained by the protonation process activated by the addition of an acid (such as hydrochloric acid). When n = 2 or n > 2, these obtained MSP·2HCl or MSP·nHCl microcrystals with a 1D wire-morphology emitted yellow light and red light, respectively.

Graphical abstract: Luminescence-/morphology-modulation of organic microcrystals by a protonation process

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Publication details

The article was received on 09 May 2017, accepted on 15 Jun 2017 and first published on 16 Jun 2017


Article type: Communication
DOI: 10.1039/C7TC02013A
Citation: J. Mater. Chem. C, 2017, Advance Article
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    Luminescence-/morphology-modulation of organic microcrystals by a protonation process

    Z. Li, X. Wang and L. Liao, J. Mater. Chem. C, 2017, Advance Article , DOI: 10.1039/C7TC02013A

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