adfm.202002473.pdf (3.14 MB)
Download fileMechanochromic and thermochromic sensors based on graphene infused polymer opals
journal contribution
posted on 2023-06-12, 09:26 authored by Izabela Jurewicz, Alice KingAlice King, Ravi Shanker, Matthew LargeMatthew Large, Ronan J Smith, Ross Maspero, Sean OgilvieSean Ogilvie, Jurgen Scheerder, Jun Han, Claudia Backes, Joselito M Razal, Marian Florescu, Joseph L Keddie, Jonathan N Coleman, Alan DaltonAlan DaltonHigh 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 temperature, 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 represents 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.
History
Publication status
- Published
File Version
- Published version
Journal
Advanced Functional MaterialsISSN
1616-301XPublisher
WileyExternal DOI
Issue
31Volume
30Page range
1-38Article number
a2002473Pages
38.0Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes