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Published on: July 11, 2025
Hybrid graphene nematic liquid crystal light scattering device
M M Qasim1, A A Khan, A Kostanyan
1Centre of Molecular Materials for Photonics and Electronics, Department of Engineering, University of Cambridge, 9 J.J. Thomson Avenue, Cambridge, CB3 0FA, UK. qmm20@cam.ac.uk.
Abstract:
A hybrid graphene nematic liquid crystal (LC) light scattering device is presented. This device exploits the inherent poly-crystallinity of chemical vapour deposited (CVD) graphene films to induce directional anchoring and formation of LC multi-domains. This thereby enables efficient light scattering without the need for crossed polarisers or separate alignment layers/additives. The hybrid LC device exhibits switching thresholds at very low electric fields (< 1 V μm(-1)) and repeatable, hysteresis free characteristics. This exploitation of LC alignment effects on CVD graphene films enables a new generation of highly efficient nematic LC scattering displays as well as many other possible applications.

