Faculty Profile

Dr. Ammar Ahmed Khan

Assistant Professor

Department Of Physics

Dr. Ammar Khan completed his PhD studies from the University of Cambridge. The focus of his PhD research was studying the application of disc-like (discotic) liquid crystals as hole transport layers in hybrid organic/in-organic dye-sensitized and perovskite solar cells. Furthermore, he also studied the interaction of liquid crystalline phases with two-dimensional graphene layers for display and lasing devices. Prior to his PhD, Ammar completed his Master of Philosophy (M.Phil) degree in the Engineering Department at the University of Cambridge, as a member of St Edmund’s College. His MPhil research was focused on the development of random lasers using Organosiloxane Smectic A liquid crystals as a distributed resonant cavity. Ammar is also a LUMS alumni and graduated from LUMS with a BS in Electrical Engineering.

At present, the focus of Dr. Ammar’s research is understanding self-assembly mechanisms of liquid crystalline physical gels, and apply them to DSSCs to increase the stability and lifetime. Furthermore, the interaction of organic-semiconductors with two-dimensional materials is also being investigated for chemical and biological sensing applications.

Title Publication Author Year
Composite liquid crystal-polymer electrolytes in dye-sensitised solar cells: effects of mesophase alkyl chain length Liquid Crystals Kamarudin M.A., Khan A.A., Said S.M., Qasim M.M., Wilkinson T.D. 2018
Formation of physical-gel redox electrolytes through self-assembly of discotic liquid crystals: Applications in dye sensitized solar cells Electrochimica Acta 2017
Plasmonic nanohole electrodes for active color tunable liquid crystal transmissive pixels Optics Letters Bartholomew R., Williams C., Khan A., Bowman R., Wilkinson T. 2017
Electrically Tunable Scattering from Devitrite???Liquid Crystal Hybrid Devices Advanced Optical Materials 2017
Induced alignment of a reactive mesogen-based polymer electrolyte for dye-sensitised solar cells RSC Advances Kamarudin M.A., Khan A.A., Tan E., Rughoobur G., Said S.M., Qasim M.M., Wilkinson T.D. 2017
Self-assembled liquid crystalline nanotemplates and their incorporation in dye-sensitised solar cells Electrochimica Acta Kamarudin M.A., Khan A.A., Williams C., Rughoobur G., Said S.M., Nosheen S., Flewitt A.J., Qasim M.M., Wilkinson T.D. 2016
Towards lasing from free-standing perovskite-chiral polymer film devices 2016 Conference on Lasers and Electro-Optics, CLEO 2016 Jones J.S.E., Sadhanala A., Khan A.A., Qasim M.M., Day S., Wilkinson T.D. 2016
Homologous binary mixtures and improved hole conduction of self-assembled discotic liquid crystals Organic Electronics Khan A.A., Rughoobur G., Kamarudin M.A., Sepe A., Dolan J.A., Flewitt A.J., Qasim M.M., Wilkinson T.D. 2016
Effect of dielectric permittivity on the performance of polymer dispersed liquid crystal (PDLC) electrolyte dye-sensitized solar cells (DSSCs) Proceedings of SPIE - The International Society for Optical Engineering Kamarudin M.A.A., Khan A.A., Qasim M.M., Wilkinson T.D. 2016
Improving the stability of organosiloxane smectic A liquid crystal random lasers using redox dopants Optical Materials Khan A.A., Morris S.M., Gardiner D.J., Qasim M.M., Wilkinson T.D., Coles H.J. 2015
Graphene-based ultrathin flat lenses ACS Photonics Kong X.-T., Khan A.A., Kidambi P.R., Deng S., Yetisen A.K., Dlubak B., Hiralal P., Montelongo Y., Bowen J., Xavier S., Jiang K., Amaratunga G.A.J., Hofmann S., Wilkinson T.D., Dai Q., Butt H. 2015
Tunable scattering from liquid crystal devices using carbon nanotubes network electrodes Nanoscale 2015
Graphene and chiral nematic liquid crystals: A focus on lasing RSC Advances Khan A.A., Bin-Kamarudin M.A., Kidambi P.R., Hofmann S., Wilkinson T.D., Qasim M.M. 2015
Hybrid graphene nematic liquid crystal light scattering device Nanoscale Qasim M.M., Khan A.A., Kostanyan A., Kidambi P.R., Cabrero-Vilatela A., Braeuninger-Weimer P., Gardiner D.J., Hofmann S., Wilkinson T.D. 2015
Electrically Switchable Diffraction Grating Using a Hybrid Liquid Crystal and Carbon Nanotube-Based Nanophotonic Device Advanced Optical Materials Won K., Palani A., Butt H., Hands P.J.W., Rajeskharan R., Dai Q., Khan A.A., Amaratunga G.A.J., Coles H.J., Wilkinson T.D. 2013