Abstract
The relative dielectric constant ε' and pyroelectric coefficient p of ferroelectric poly(vinylidene fluoride-trifluoroethylene) polymers P(VDF-TrFE) films grown on flexible substrates by Langmuir-Blodgett (LB) technique were measured, and room temperature figure of merit was obtained as 1.4 Pa-1/2 at 1kHz. The result implies that LB P(VDF-TrFE) copolymer films are potential materials for pyroelectric detectors. This enhancement of figure of merit could be attributed to good crystallinity and highly planar ordered molecular chains in the LB films.
| Original language | English |
|---|---|
| Pages (from-to) | 401-404+409 |
| Journal | Hongwai Yu Haomibo Xuebao/Journal of Infrared and Millimeter Waves |
| Volume | 28 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2009 |
| Externally published | Yes |
Keywords
- Ferroelectric copolymer film
- Figure of merit
- Langmuir-Blodgett film