Thermal diode made by nematic liquid crystal
Djair Melo (Instituto de F\'isica, Universidade Federal de Alagoas,, Macei\'o, AL, Brazil), Ivna Fernandes (Instituto de F\'isica, Universidade, Federal de Alagoas, Macei\'o, AL, Brazil), Fernando Moraes (Departamento de, F\'isica, CCEN, Universidade Federal da Para\'iba
TL;DR
This paper demonstrates a thermal diode using nematic liquid crystal in a cylindrical capillary, achieving rectification rates comparable to carbon nanotube diodes, with sensitivity to various physical parameters.
Contribution
It introduces a novel thermal diode design based on nematic liquid crystal with defect-induced asymmetry for thermal rectification.
Findings
Thermal rectification rates up to 3.5% at room temperature.
Rectification comparable to carbon nanotube-based diodes.
System sensitivity to heat power, geometry, and molecular anchoring angle.
Abstract
This work investigates how a thermal diode can be designed from a nematic liquid crystal confined inside a cylindrical capillary. In the case of homeotropic anchoring, a defect structure called escaped radial disclination arises. The asymmetry of such structure causes thermal rectification rates up to 3.5\% at room temperature, comparable to thermal diodes made from carbon nanotubes. Sensitivity of the system with respect the heat power supply, the geometry of the capillary tube and the molecular anchoring angle is also discussed.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.