Ultrafast laser-assisted printing of functional materials

  • Besançon, Doubs
  • CDD
  • Temps-plein
  • Il y a 17 jours
Offer DescriptionContextThe next generation of micro- and nano- technologies for manufacturing microelectronic, photonic, and electro-mechanical components (MEMS/NEMS) requires processes that are flexible, fast, parallel, and, most importantly, that minimize waste of elements which sourcing is environmentally costly. This requires 3D structuring and 3D heterogeneous co-integration of structural (polymers, glass, metals, Si) and active materials (electrodes, piezoelectric, magnetic, or electro-optic materials,.) at micron- and sub-micron scales. However, most of conventional micro-fabrication techniques are based on 2.5D wafer processing (deposition of the active materials layers and structuring using different lithography and dry/wet etching techniques). Additive fabrication of electro-active materials by conventional 3D printing technologies is still under development and offers very limited resolution of tens of µm. Two-photon lithography, yet with sub-micron resolution is limited to 3D polymer structures.The PhD thesis belongs to a wider scale project, Nanofutur, funded via the French Excellence funding Equipex+. The goal of this research is the development of a new micro-nanofabrication technique that will answer the needs for flexible micro-nanofabrication in 3D with high throughput. The concept is based on femtosecond laser-controlled chemical deposition of materials, close to laser-activated CVD.The developments will be done by joining the expertise in CVD and functional materials of the Time-Frequency Department with the expertise in optical design and laser-matter interaction of the Optics Department. The challenges are: 1/ the development of an advanced platform including a reaction chamber and in-situ optical characterization 2/selection of precursor molecules which photolysis yield a high spatial selectivity.PhD objectives
  • Design and mounting up the optical setup and reactor chamber.
  • Study of precursor photoysis and material growth.
  • characterization of the produced materials using state-of the art characterization techniques available at FEMTO-ST.
Starting date: September-October 2024 (or earlier)PhD supervisors : Prof. Ausrine Bartasyte & François Courvoisier, Research DirectorFunding category: Financement public/privé
EUR EIPHI & BFC region
PHD title: Doctorat des Sciences pour l'ingénieur
PHD Country: FranceRequirementsSpecific RequirementsOffer requirementsEducation level: Master degree or equivalent in Material science /Physics/Engineering, which formally entitle to embark on a doctorate;Qualifications & experience:Fluent English (oral and written);
Background in optics
Background and expertise in the field of Physics/Material Science and/or Engineering;
Excellent IT skills (Python, Matlab or Labview programming, Microsoft office, image editors);
Experience in clean-room, laser fabrication or microfabrication (optional)Personal skills:The candidate should have a high motivation, excellent interpersonal, time and stress management, and excellent verbal and written communication skills.Additional InformationWork Location(s)Number of offers available 1 Company/Institute Institut FEMTO-ST Country France City Besançon GeofieldWhere to apply WebsiteContact WebsiteSTATUS: EXPIRED

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