| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Ayouchi, R.
Laboratoire Analyse, Géométrie et Applications
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2014Tungsten trioxide nanostructured electrodes for organic dye sensitised solar cellscitations
- 2013Optical properties of lead-free NKN films from transmission and spectral ellipsometrycitations
- 2012Complex dielectric function in lead-free NKN filmscitations
- 2012Transfer characteristic of zinc nitride based thin film transistorscitations
- 2012Development of lead-free materials for piezoelectric energy harvestingcitations
- 2012Secondary electron emission yield (SEY) in amorphous and graphitic carbon films prepared by PLDcitations
- 2010Local electromechanical properties of ZnO thin films and microcrystals
- 2010Optical properties of TiO(2) thin films prepared by chemical spray pyrolysis from aqueous solutionscitations
- 2010Local piezoelectric properties of ZnO thin films prepared by RF-plasma-assisted pulsed-laser deposition methodcitations
- 2010RF-plasma assisted PLD growth of Zn3N2 thin filmscitations
- 2009Morphological and optical properties of silicon thin films by PLDcitations
- 2008Study of trap states in zinc oxide (ZnO) thin films for electronic applicationscitations
- 2007ZnO films grown by laser ablation with and without oxygen CVDcitations
- 2007Photoinduced excess carrier dynamics in PLD-grown ZnOcitations
- 2001Electrochemical properties of lead oxide films obtained by spray pyrolysis as negative electrodes for lithium secondary batteriescitations
- 2000Compositional, structural and electrical characterization of barium titanate thin films prepared on fused silica and Si(111) by spray pyrolysis
Places of action
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article
Local piezoelectric properties of ZnO thin films prepared by RF-plasma-assisted pulsed-laser deposition method
Abstract
Zinc oxide (ZnO) thin films were grown on uncoated and zinc-coated Corning glass substrates by pulsed-laser deposition (PLD). X-ray diffraction measurements revealed that the as-deposited films are polycrystalline having preferential orientation along the [ 0002] and [10 (1) over bar1] directions. Transmittance spectroscopy verified that the as-deposited films are transparent with a direct bandgap of about 3.28 eV at room temperature. Piezoresponse imaging and local hysteresis loop acquisition were performed to characterize the piezoelectric and possible ferroelectric properties of the films. The out-of-plane (effective longitudinal, d(parallel to)) and in-plane (effective shear, d(perpendicular to)) coefficients were estimated from the local piezoresponse based on the comparison with LiNbO(3) single crystals. Measurements of all three components of piezoresponse (one longitudinal and two shear signals) allowed constructing piezoelectric maps for polycrystalline ZnO and to relate the variation of piezoelectric properties to the crystallographic and grain structure of the films. A shifted piezoresponse hysteresis loop under high voltages hints at the possible pseudoferroelectricity, as discussed recently by Tagantsev (2008 Appl. Phys. Lett. 93 202905).