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Home   /   Post Doctorat   /   Large-area processing and design of functional piezoelectric nanomaterials for flexible sensors and systems

Large-area processing and design of functional piezoelectric nanomaterials for flexible sensors and systems

Condensed matter physics, chemistry & nanosciences Engineering sciences Materials and applications Solid state physics, surfaces and interfaces


CEA LETI develops innovative highly flexible strain sensors which exploit the piezoelectric properties of self-organized gallium nitride nanowires. The fabrication steps are basically: i) nanowire growth, ii) nanowire assembly, iii) encapsulation, iv) contacting. First demonstrators with small active area (1.5 cm²) have already been achieved using the Langmuir Blodgett (LB) technique for the assembly of nanowires. The present project is concerned with the scaling-up of the assembly process over large surface areas, as well as controlled patterning of nanowire assemblies in 1D and 2D by using an innovative CEA LITEN roll-to-roll technology called Boostream® which has the same functionalities as LB in its basic function.
The aim of the post doc is to develop a new building block for the Boostream® equipment enabling a controlled assembly of wires with a pre-defined design. The candidate will carry out studies to optimize the wire assembly, develop the process of film patterning and fabricate, integrate and characterize GaN nanowire piezoelectric transducers with dimensions of 15x15 cm².
More generally, this post doc will also provide the opportunity to develop a generic knowledge to manipulate micro or nano wires or fibers giving new solutions in various fields such as surface structuration, electronic skin, energy...


Département des Technologies des NanoMatériaux (LITEN)
Service Elaboration des Nanomatériaux
Laboratoire des Surfaces Nanostructurées
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