Last application date Jul 08, 2018 15:56
Department WE06 - Department of Chemistry
Contract Limited duration
Degree master degree in physics, chemistry, or materials science
Occupancy rate 100%
Vacancy Type Research staff
In the PHOCONA project, we aim to develop a new class of highly fluorescent 2D and quasi-2D colloidal nanomaterials for solution-processed coherent light sources and ultrafast single-photon emitters. The materials will consist of suspended semiconductor nanoplates with a thickness below 5 nm, and transition-metal dichalcogenide monolayers. Prepared by colloidal chemistry or, in the latter case, also liquid-phase exfoliation, they take advantage of both quantum confinement through their nanoscale dimensions, as well as dielectric confinement via the dielectric mismatch between nanomaterials and surrounding host. With smart nanocrystal design, the nanomaterials will be shaped toward efficient multiexciton and stimulated emission, as well as stable, blinking-free single-photon emission. The intrinsic optoelectronic properties will be further modified toward ultrafast exciton recombination by coupling the nanomaterials to small mode-volume plasmonic nanocavities, hereby placing them in a local photon density-of-states that will lead to a strong Purcell enhancement.
To achieve these goals, we are looking to expand the team with 2 Ph.D. students for the following projects:
1. The first Ph.D. student will focus on the colloidal synthesis and surface chemistry of 2D layered materials (MoX2, WX2 and associated materials) to obtain highly fluorescent nanomaterials, the investigation of their linear and nonlinear emission properties with time-resolved optical spectroscopy, and their exploration as solution-processed gain materials.
2. The second Ph.D. student will focus on the investigation of exciton-plasmon interactions in 2D nanocrystals on the ensemble and single dot level. This involves fabrication of plasmonic nano- and microstructures using chemical of physical methods, the integration of 2D nanocrystals into these structures, and the optical characterization of the resulting Purcell-enhanced ensemble emission and ultrafast single-photon emitters.
The Ph.D. candidate must hold a master degree in physics, chemistry, or materials science, and show a strong interest in nanocrystal synthesis, photonic nanomaterials or optical spectroscopy. The Ph.D. candidate will be offered a two-year scholarship, renewable up to a maximum duration of four years. The work will be executed in the Physics and Chemistry of Nanostructures Group at Ghent University, Belgium.
To apply, please send your motivation letter, c.v., overview of courses and grades, and contact information of 2 references, to firstname.lastname@example.org, using the subject line “application PHOCONA Ph.D. 1” for the first position, or “application PHOCONA Ph.D. 2” for the second position. The deadline for application is July 8th 2018, 23h59 CEST.Continue reading