Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units.

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2017
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Abstract
Stimuli responsive luminescent materials, especially those exhibiting multicolor emission switching, have potential application in sensor, optical recording, security ink, and anti-counterfeit label. Through combination of twisted conjugation core and donor and acceptor units, a luminogen (2-((4-(carbazol-9-yl)phenyl)methylene)malononitrile () was synthesized. Luminogen can form three kinds of crystals emitting green (, λ = 506 nm, Φ = 19.8%), yellow-green (, λ = 537 nm, Φ = 17.8%), and orange (, λ = 585 nm, Φ = 30.0%) light upon 365 nm UV illumination. The emission of amorphous solid of () overlaps with that of (λ = 585 nm), with quantum yield of 13.9%, which is seldom reported. Emission of can be switched among green, yellow-green, and orange through morphology modulation upon exposure to thermal, solvent vapor, or mechanical stimuli. Finally, its potential application in optical recording was also investigated.
Reference Key
tian2017construction Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Tian, Haiyan;Tang, Xi;Dong, Yong Qiang;
Journal molecules
Year 2017
DOI
E2222
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Keywords Keywords not found

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