Grad student in summer school of the European Investment Bank
The postgraduate student of our Department, Vassilios Tsampallas, participated in the annual summer school of the European Investment Bank, which took place from 24 June 2024 to 6 July 2024 in Luxembourg, he reports on his experience: “I’m excited to share my experience from the EIB Summer School, a two-week program that united 80 students […]
Size Dependence in Hexagonal Mesoporous Germanium: Pore Wall Thickness versus Energy gap and Photoluminescence
A series of hexagonal mesoporous germanium semiconductors with tunable wall thickness is reported. These materials exhibit systematically blue shifted optical adsorption and strong room temperature photoluminescence properties that depend on the thickness of the framework wall, a behavior which is analogous to the blue shifted absorption in discrete nanocrystals. From: G.S. Armatas, M.G. Kanatzidis, “Size […]
Laser-Induced Cell Detachment and Patterning with Photodegradable Polymer Substrates
The photochemical degradation of poly(ketal)s and poly(acetal)s using fast laser sources was shown for the first time. The degradation was found to take place at very low energies, without the generation of free radical intermediates and led to low molecular weight by-products. The polymers (and their photoproducts) can be generally -egarded as safe (GRAS) materials […]
Bragg Polaritons: Strong Coupling and Amplification in an Unfolded Microcavity
Periodic incorporation of quantum wells inside a one-dimensional Bragg structure is shown to enhance coherent coupling of excitons to the electromagnetic Bloch waves. We demonstrate strong coupling of quantum well excitons to photonic crystal Bragg modes at the edge of the photonic band gap, which gives rise to mixed Bragg polariton eigenstates. The resulting Bragg […]
Probing Bioinspired Transport of Nanoparticles into Polymersomes
In biology the control of transmembrane transport is fundamental to functionality. The complexity of biological membranes and the diverse coupling of interactions, however, make direct investigations very difficult. Therefore the construction of synthetic artificial model membranes to study systematically their physical and chemical characteristics, and to find out how membrane functions can be modified and […]