Issue 21, 2012
From the journal:

Journal of Materials Chemistry

Azulene-containing organic chromophores with tunable near-IR absorption in the range of 0.6 to 1.7 μm†

Fuke Wang,*ab   Ting Ting Lin,a   Chaobin He,*ac   Hong Chi,ab   Tao Tangac  and  Yee-Hing Laib  

* Corresponding authors

a Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 3 Research Link, Singapore 117602
E-mail: wangf@imre.a-star.edu.sg, cb-he@imre.a-star.edu.sg, msehc@nus.edu.sg
Fax: +65 6872-0785
Tel: +65 6874-8111

b Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543

c Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576

Abstract

Near-infrared (NIR) absorption in the range of 0.75–2.5 μm is in great demand for a variety of applications but currently the majority of commercial NIR devices are based on inorganic materials due to the limited number of organic materials that are active in this range. Here we present the preparation and optical studies of a new series of stable azulene-containing NIR chromophores whose absorption can be tuned in the range of 0.6–1.7 μm. DFT calculation revealed that the protonation-induced low excitation gap was attributable to the substantial intramolecular charge transfer.

Graphical abstract: Azulene-containing organic chromophores with tunable near-IR absorption in the range of 0.6 to 1.7 μm

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Article information

DOI
https://doi.org/10.1039/C2JM31098H
Article type
Communication
Submitted
22 Feb 2012
Accepted
08 Apr 2012
First published
13 Apr 2012

J. Mater. Chem., 2012,22, 10448-10451

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Azulene-containing organic chromophores with tunable near-IR absorption in the range of 0.6 to 1.7 μm

F. Wang, T. T. Lin, C. He, H. Chi, T. Tang and Y. Lai, J. Mater. Chem., 2012, 22, 10448 DOI: 10.1039/C2JM31098H

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