期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 5, 期 38, 页码 10007-10015出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7tc03277c
关键词
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资金
- Natural Sciences and Engineering Research Council (NSERC Discovery Grant) [RGPIN-2016-04614]
- Canada Foundation for Innovation (CFI) John R. Evans Leaders Fund (CFI-JELF) [34474]
- Ministry of Research and Innovation (MRI)
- University of Ottawa
Five reversibly thermochromic bismuth-based inorganic-organic hybrid materials were synthesized via facile one-step condensation reactions between triphenylbismuth and four arenedithiols and a diselenol. The materials were characterized by UV-vis and FT-IR spectroscopy, powder X-ray diffraction (PXRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM), elemental analysis (EA), and thermogravimetric analysis (TGA). The bismuth-organic materials (Bi-OMs) are colored materials with optical HOMO-LUMO gaps that were readily tuned by systematic modification of the steric and electronic character of the pi-conjugated organic linkers. All five Bi-OMs exhibit completely reversible thermochromism in the solid-state, and possess excellent thermal stability in air up to nearly 300 degrees C. This combination of physical properties, coupled with the ease of synthesis and the inexpensive, non-toxic nature of bismuth, make this class of inorganic-organic hybrid materials potentially promising for reversible smart window applications, camouflage coatings, temperature sensing, photocatalysis, color filters and displays.
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