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

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-(bis(4-...

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Autores principales: Tian, Haiyan, Tang, Xi, Dong, Yong Qiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149696/
https://www.ncbi.nlm.nih.gov/pubmed/29240718
http://dx.doi.org/10.3390/molecules22122222
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author Tian, Haiyan
Tang, Xi
Dong, Yong Qiang
author_facet Tian, Haiyan
Tang, Xi
Dong, Yong Qiang
author_sort Tian, Haiyan
collection PubMed
description 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-(bis(4-(carbazol-9-yl)phenyl)methylene)malononitrile (1) was synthesized. Luminogen 1 can form three kinds of crystals emitting green (1GC, λ(em) = 506 nm, Φ(F) = 19.8%), yellow-green (1YC, λ(em) = 537 nm, Φ(F) = 17.8%), and orange (1OC, λ(em) = 585 nm, Φ(F) = 30.0%) light upon 365 nm UV illumination. The emission of amorphous solid of 1 (1Am) overlaps with that of 1OC (λ(em) = 585 nm), with quantum yield of 13.9%, which is seldom reported. Emission of 1 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.
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spelling pubmed-61496962018-11-13 Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units Tian, Haiyan Tang, Xi Dong, Yong Qiang Molecules Article 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-(bis(4-(carbazol-9-yl)phenyl)methylene)malononitrile (1) was synthesized. Luminogen 1 can form three kinds of crystals emitting green (1GC, λ(em) = 506 nm, Φ(F) = 19.8%), yellow-green (1YC, λ(em) = 537 nm, Φ(F) = 17.8%), and orange (1OC, λ(em) = 585 nm, Φ(F) = 30.0%) light upon 365 nm UV illumination. The emission of amorphous solid of 1 (1Am) overlaps with that of 1OC (λ(em) = 585 nm), with quantum yield of 13.9%, which is seldom reported. Emission of 1 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. MDPI 2017-12-14 /pmc/articles/PMC6149696/ /pubmed/29240718 http://dx.doi.org/10.3390/molecules22122222 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tian, Haiyan
Tang, Xi
Dong, Yong Qiang
Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title_full Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title_fullStr Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title_full_unstemmed Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title_short Construction of Luminogen Exhibiting Multicolored Emission Switching through Combination of Twisted Conjugation Core and Donor-Acceptor Units
title_sort construction of luminogen exhibiting multicolored emission switching through combination of twisted conjugation core and donor-acceptor units
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6149696/
https://www.ncbi.nlm.nih.gov/pubmed/29240718
http://dx.doi.org/10.3390/molecules22122222
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