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Abstract
We present a pioneer study depicting a significant improvement in the photoluminescence (PL) intensity and display of an expeditious electro-optic response of ferroelectric liquid crystal (FLC) when doped with graphene quantum dots (GQDs). Significant threefold enhancement in PL intensity of GQDs/FLC composite material can be ascribed to the additive combination of emissions from GQDs and FLCs. Furthermore, promptness in electro-optical response by a factor of 34% can be attributed to the lowering of rotational viscosity of the FLC material due to the incorporation of GQDs. These results would certainly be helpful in realisation of highly luminescent and faster generation of LC systems.
Acknowledgements
The authors sincerely thank Professor R.C. Budhani, Director, CSIR-National Physical Laboratory, New Delhi, for allowing us to do this work. Veeresh Kumar thanks the University Grant Commission, Government of India for the research fellowship. We would also like to acknowledge Dr D. Haranath’s support for the luminescence studies.