Mechanochromic and Thermochromic Sensors Based on Graphene Infused Polymer Opals
Citation:
Jonathan Coleman, 'Mechanochromic and Thermochromic Sensors Based on Graphene Infused Polymer Opals', 2020, Advanced Functional Materials;, 30;, 31;Download Item:
Abstract:
High quality opal-like photonic crystals containing graphene are fabricated using
evaporation-driven self-assembly of soft polymer colloids. A miniscule amount
of pristine graphene within a colloidal crystal lattice results in the formation of
colloidal crystals with a strong angle-dependent structural color and a stop band
that can be reversibly shifted across the visible spectrum. The crystals can be
mechanically deformed or can reversibly change color as a function of their tem-
perature, hence their sensitive mechanochromic and thermochromic response
make them attractive candidates for a wide range of visual sensing applications.
In particular, it is shown that the crystals are excellent candidates for visual
strain sensors or integrated time-temperature indicators which act over large
temperature windows. Given the versatility of these crystals, this method repre-
sents a simple, inexpensive, and scalable approach to produce multifunctional
graphene infused synthetic opals and opens up exciting applications for novel
solution-processable nanomaterial based photonics.
Author's Homepage:
http://people.tcd.ie/colemaj
Author: Coleman, Jonathan
Type of material:
Journal ArticleCollections
Series/Report no:
Advanced Functional Materials;30;
31;
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Full text availableKeywords:
colloidal crystal lattice, novel solution-processable nanomaterial, mechanochromic, Pristine grapheneDOI:
http://dx.doi.org/10.1002/adfm.202002473Metadata
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