mechanochromic luminescence
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2021 ◽  
Vol 86 (18) ◽  
pp. 12591-12596
Author(s):  
Hongyan Zhao ◽  
Linwei Huang ◽  
Yedong Wang ◽  
Kai Feng ◽  
Yunhao Chang ◽  
...  

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 950
Author(s):  
Mizuho Kondo ◽  
Yuya Morita ◽  
Nobuhiro Kawatsuki

Mechanochromic luminescent dyes change their luminescence color upon exposure to external mechanical stimuli. In this study, we synthesized a liquid crystalline mechanochromic luminescent dye containing a terminal cholesterol molecule. The dissolution of the dye in 1,4-dioxane resulted in the formation of a gel. The luminescence of the xerogel obtained from the dioxane solution changed from green to blue upon grinding, indicating mechanochromic luminescence behavior. The anisotropic patterning of short-wavelength-shifted luminescence color change by directional handwriting on surface layer of liquid crystal was successfully demonstrated. Furthermore, blue-shifting mechanoresponsive polymer composite surface was fabricated by using the luminophore.


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