Huge gain in pyroelectric energy conversion through epitaxy for integrated self-powered nanodevices

Rahma Moalla 1 Bertrand Vilquin 1 Guillaume Saint-Girons 1 Gwenaël Le Rhun 2 Emmanuel Defay 3 Gaël Sebald 4, 5 Nicolas Baboux 6 Romain Bachelet 1
1 INL - H&N - INL - Hétéroepitaxie et Nanostructures
INL - Institut des Nanotechnologies de Lyon
2 CEA-LETI - Laboratoire d'Electronique et des Technologies de l'Information
3 LIST - Luxembourg Institute of Science and Technology
4 LGEF - Laboratoire de Génie Electrique et Ferroélectricité
5 ELyTMaX
6 INL - DE - INL - Dispositifs Electroniques
INL - Institut des Nanotechnologies de Lyon
Abstract : Polycrystalline (textured) and epitaxial 500 nm thick Pb(Zr0.52Ti0.48)O3 (PZT) layers have been monolithically integrated in metal-insulator-metal structure on silicon in order to compare their pyroelectric properties, both statically (under stabilized temperatures) and dynamically (when submitted to temperature transient as a pyroelectric device should work). The films have roughly the same out-of-plane orientation, and thus a similar out-of-plane remnant ferroelectric polarization around 12 μC/cm2. Whereas their static pyroelectric coefficients are similar (around −470 μC m−2 K−1), the dynamic pyroelectric coefficient of the epitaxial layer is about one order of magnitude larger than that of the polycrystalline layer (−230 vs −30 μC m−2 K−1). This causes an important difference on the densities of converted pyroelectric energy by almost two orders of magnitude (1 vs 1.5 10−2 mJ/cm3 per cycle for temperature variations of ∼6 K). This difference is explained here by the counterbalanced extrinsic pyroelectric contribution arising from the domain walls motion in the dynamical measurements. Extrinsic pyroelectric contribution appears almost twice larger on polycrystalline layer than on epitaxial layer (+430 vs +250 μC m−2 K−1). These results are crucial for further design of advanced integrated pyroelectric-based nanodevices.
Keywords : Pyroelectricity Energy conversion Integration Epitaxy Extrinsic contribution
Document type :
Journal articles
Complete list of metadatas

Cited literature [30 references]  Display  Hide  Download
https://hal.archives-ouvertes.fr/hal-01848668
Contributor : Guillaume Saint-Girons <>
Submitted on : Tuesday, June 4, 2019 - 3:59:22 PM
Last modification on : Tuesday, November 19, 2019 - 2:47:05 AM

File

MOALLA_VILQUIN_SAINT-GIRONS_et...
Files produced by the author(s)

Licence

Copyright

Identifiers

Collections

EC-LYON | INSA-GROUPE | CEA-GRE | LETI | LGEF | INSA-LYON | UNIV-LYON1 | DRT | CEA | INL | CNRS | ELYTMAX | UDL

Citation

Rahma Moalla, Bertrand Vilquin, Guillaume Saint-Girons, Gwenaël Le Rhun, Emmanuel Defay, et al.. Huge gain in pyroelectric energy conversion through epitaxy for integrated self-powered nanodevices. Nano Energy, Elsevier, 2017, 41, pp.43 - 48. ⟨10.1016/j.nanoen.2017.09.001⟩. ⟨hal-01848668⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

160

Files downloads

63