Hybrid Graphene Nematic Liquid Crystal Light Scattering Device
Royal Society of Chemistry
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Qasim, M., Khan, A., Kostanyan, A., Kidambi, P., Cabrero-Vilatela, A., Braeuninger-Weimer, P., Gardiner, D., et al. (2015). Hybrid Graphene Nematic Liquid Crystal Light Scattering Device. Nanoscale, 7 14114-14120. https://doi.org/10.1039/c5nr04094a
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.
Funding from the EPSRC (Grant No. EP/K016636/1, GRAPHTED) is acknowledged. P.R.K. acknowledges funding from Cambridge Commonwealth Trust (CCT) and the Lindemann Trust Fellowship. A.A.K would like to thank the Higher Education of Pakistan (HEC) and the CCT for financial support. A.C.V. acknowledges funding from the Cambridge Conacyt Scholarship and the Roberto Rocca Fellowship. A.K. would like to thank the Luys Educational Foundation and Hovnanian Foundation for scholarships.
CRANFIELD UNIVERSITY (FB EPSRC) (EP/I033491/1)
External DOI: https://doi.org/10.1039/c5nr04094a
This record's URL: https://www.repository.cam.ac.uk/handle/1810/249074