BITS Faculty Publications
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Item Reduction of threshold electric field on doping nematic liquid crystal with functionalized CNT(AIP, 2013-06) Manjuladevi, V.; Gupta, Raj KumarNematic Liquid crystals are orientationally ordered fluids whose average orientation direction can be manipulated on application of electric and magnetic fields. Carbon nanotube (CNT), a highly shape anisotropic object can find numerous industrial application because of its interesting electronic and mechanical properties. The self-organizing properties of nematics can be used to align CNTs dispersed in them. We have dispersed functionalized CNTs in nematic liquid crystal and carried out experimental studies. We will present results of electro-optic switching of CNT-LC dispersion. We have observed that addition of functionalized CNTs in the liquid crystal (LC) has led to reduction of threshold electric field.Item Investigation on physical properties of silver nanorod doped nematic liquid crystal(AIP, 2021-09) Manjuladevi, V.; Gupta, Raj KumarImprovement in the physical properties of nematic liquid crystals plays an important role in the performance of display devices. In the present study, the physical properties of silver nanorod (AgNR) doped nematic liquid crystal is investigated. The negligible change is observed in the value of birefringence for the lower doping concentration of AgNR in NLC. The parallel and perpendicular components of dielectric permittivity at T-TIN = −15 ° C increase with the addition of lower concentration (≤ 0.5 wt%) of silver nanorods to the NLC host. The ac conductivity decreases with the increase in the dopant concentration because of the trapping of ionic impurities of NLC