Voltage tunability of thermal conductivity in ferroelectric materials
US9255347B2 · kind B2 · utility
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26Claims
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Key dates
| Filing date | Nov 18, 2014 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Nov 18, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B1/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method to control thermal energy transport uses mobile coherent interfaces in nanoscale ferroelectric films to scatter phonons. The thermal conductivity can be actively tuned, simply by applying an electrical potential across the ferroelectric material and thereby altering the density of these coherent boundaries to directly impact thermal transport at room temperature and above. The invention eliminates the necessity of using moving components or poor efficiency methods to control heat transfer, enabling a means of thermal energy control at the micro- and nano-scales.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.