We thank Prof. K. Araki and Dr. T. Mutai for measurements of emission lifetime and quantum efficiency. This work was partially supported by the Grant-in-Aid for Scientific Research on Innovative Areas of “Fusion Materials: Creative Development of Materials and Exploration of Their Function through Molecular Control” (No. 2206) (T.K.) from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), and The Global COE Program (Chemistry Innovation through Cooperation of Science and Engineering) (T.K.) from MEXT. Y.S. is grateful for financial support from the Japan Society for the Promotion of Science Research Fellowship for Young Scientists.
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Communication
Brightly Tricolored Mechanochromic Luminescence from a Single-Luminophore Liquid Crystal: Reversible Writing and Erasing of Images†
Article first published online: 27 JUL 2011
DOI: 10.1002/anie.201100914
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Angewandte Chemie International Edition
Volume 50, Issue 39, pages 9128–9132, September 19, 2011
Additional Information
How to Cite
Sagara, Y. and Kato, T. (2011), Brightly Tricolored Mechanochromic Luminescence from a Single-Luminophore Liquid Crystal: Reversible Writing and Erasing of Images. Angew. Chem. Int. Ed., 50: 9128–9132. doi: 10.1002/anie.201100914
- †
Publication History
- Issue published online: 15 SEP 2011
- Article first published online: 27 JUL 2011
- Manuscript Revised: 16 APR 2011
- Manuscript Received: 5 FEB 2011
Funded by
- Grant-in-Aid for Scientific Research. Grant Number: 2206
- Ministry of Education, Culture, Sports, Science and Technology
- MEXT
- Japan Society for the Promotion of Science Research Fellowship for Young Scientists
Keywords:
- liquid crystals;
- luminescence;
- materials science;
- phase transitions;
- supramolecular chemistry
A glowing image: The photoluminescent colors reddish-orange, yellow, and green, are generated from a single liquid-crystalline mixture containing one luminophore (see picture). The colors are easily distinguished by the naked eye and can be reversibly written and erased. Moreover, these luminescent colors can be switched by mechanical and thermal stimuli.