Direct and converse piezoelectric responses at the nanoscale from epitaxial BiFeO3 thin films grown by polymer assisted deposition
Financiación H2020 / H2020 FundsFinanciación FP7 / Fp7 Funds
Resumen: We use an original water-based chemical method to grow pure epitaxial BiFeO3 (BFO) ultra-thin films with excellent piezoelectric properties. Particularly, we show that this novel chemical route produces higher natural ferroelectric domain size distribution and coercive field compared to similar BFO films grown by physical methods. Moreover, we measured the d33 piezoelectric coefficient of 60 nm thick BFO films by a direct approach, using Direct Piezoelectric Force Microscopy (DPFM). As a result, first piezo-generated charge maps of a very thin BFO layer were obtained applying this novel technology. We also performed a comparative study of the d33 coefficients between standard PFM analysis and DPFM microscopy showing similar values i.e. 17 pm V-1 and 22 pC N-1, respectively. Finally, we proved that the directionality of the piezoelectric effect in BFO ferroelectric thin films is preserved at low thickness dimensions demonstrating the potential of chemical processes for the development of low cost functional ferroelectric and piezoelectric devices.
Idioma: Inglés
DOI: 10.1039/c8nr05737k
Año: 2018
Publicado en: NANOSCALE 10, 43 (2018), 20155-20161
ISSN: 2040-3364

Factor impacto JCR: 6.97 (2018)
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 41 / 293 = 0.14 (2018) - Q1 - T1
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 20 / 94 = 0.213 (2018) - Q1 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 26 / 172 = 0.151 (2018) - Q1 - T1
Categ. JCR: PHYSICS, APPLIED rank: 18 / 148 = 0.122 (2018) - Q1 - T1

Factor impacto SCIMAGO:

Financiación: info:eu-repo/grantAgreement/EC/FP7/312483/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM 2
Financiación: info:eu-repo/grantAgreement/EC/H2020/654360/EU/NANOSCIENCE FOUNDRIES AND FINE ANALYSIS - EUROPE/NFFA-Europe
Financiación: info:eu-repo/grantAgreement/ES/MINECO/SEV-2015-0496
Tipo y forma: Article (PostPrint)
Área (Departamento): Área Física Materia Condensada (Dpto. Física Materia Condensa.)

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