Journal article
Field controlled nematic-to-isotropic phase transition in liquid crystal-carbon nanotube composites
Journal of applied physics, v 103(6), pp 064314-064314-5
25 Mar 2008
Abstract
A nematic-to-isotropic transition has been observed in suspensions of carbon nanotubes (CNTs) and a cyanobiphenyl-based liquid crystal (LC) confined within an indium tin oxide glass sandwich cell. Upon the application of electric field, CNTs rotate out of plane short-circuiting the electrodes and producing a current flow through the CNTs. The resulting Joule heating leads to a local increase in temperature of the LC-CNT medium. Hence, starting from a metastable nematic phase, a complete transition to the isotropic phase is observed. On removal of the electric field, the transition is reversed with the LC-CNT medium returning to the nematic phase.
Metrics
Details
- Title
- Field controlled nematic-to-isotropic phase transition in liquid crystal-carbon nanotube composites
- Creators
- Hemang Shah - Department of Electrical and Computer Engineering, and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, Pennsylvania 19104, USAAdam Fontecchio - Department of Electrical and Computer Engineering, and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, Pennsylvania 19104, USADavide Mattia - Department of Electrical and Computer Engineering, and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, Pennsylvania 19104, USAYury Gogotsi - Department of Electrical and Computer Engineering, and A.J. Drexel Nanotechnology Institute, Drexel University, Philadelphia, Pennsylvania 19104, USA
- Publication Details
- Journal of applied physics, v 103(6), pp 064314-064314-5
- Publisher
- American Institute of Physics
- Resource Type
- Journal article
- Academic Unit
- Electrical and Computer Engineering; Materials Science and Engineering
- Web of Science ID
- WOS:000254536900110
- Scopus ID
- 2-s2.0-41549168212
- Other Identifier
- 991014969759804721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Physics, Applied