dc.contributor.author |
Manjuladevi, V. |
|
dc.date.accessioned |
2024-02-15T07:10:36Z |
|
dc.date.available |
2024-02-15T07:10:36Z |
|
dc.date.issued |
2015-12 |
|
dc.identifier.uri |
https://www.tandfonline.com/doi/full/10.1080/02678292.2015.1119320 |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14275 |
|
dc.description.abstract |
The optical response time of a nematic liquid crystal (NLC) decreases due to incorporation of carbon nanotubes (CNTs) in the liquid-crystal host. Such reduction is believed to be due to an increase in the elastic constant of the nanotube-doped LC system. In this paper, we present the effect on optical response due to doping an NLC with octadecylamine functionalised single-walled carbon nanotubes (ODA-SWCNT) in a twisted alignment mode. The electro-optic switching amplitude of ODA-SWCNT nanocomposites of NLC decreases compared to pure NLC. A fast response time is observed with an increase in the concentration of ODA-SWCNT in NLC host. Additionally, optical response of pure NLC in a twisted nematic (TN) cell fabricated using mixtures of polyimide (PI) and ODA-SWCNT as an alignment layer is investigated. The optical response time decreased by ~75% in a TN cell fabricated with a mixture of PI and ODA-SWCNT compared to that of a TN cell prepared using a pure PI alignment layer. The presence of ODA-SWCNT in the alignment layer enhances the surface anchoring of the NLC molecules leading to an increase in the elastic constant and a decrease in the optical response time of NLC. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Taylor & Francis |
en_US |
dc.subject |
Physics |
en_US |
dc.subject |
Nematic liquid crystal (NLC) |
en_US |
dc.subject |
ODA-SWCNT |
en_US |
dc.subject |
Carbon nanotubes (CNTs) |
en_US |
dc.title |
Fast response in TN liquid-crystal cells: effect of functionalised carbon nanotubes |
en_US |
dc.type |
Article |
en_US |