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The present doctoral thesis aims to contribute to the field of organic semiconductor physics and technology, both of which have become fast growing disciplines. Two technological applications are emerging from these research efforts: Organic light-emitting ...
We present a novel semiconductor structure in which 0D polaritons coexist with 2D microcavity polaritons. Spatial trapping of the 2D microcavity polaritons results from the confinement of their photonic part in a potential well, consisting of an adjustable ...
The aim of this paper is to present a novel approach to pattern silicon nanowires for advanced electronics applications. A simple non-lithographic process was successfully developed to define sub-40nm diameter silicon wires and to connect them to test pads ...
Using a differential transmission pump-probe experiment in heterodyne detection, the ultrafast gain and refractive-index dynamics of the ground-state transition in InAs/GaAs quantum-dot amplifiers emitting near 1.3 mu m at working condition, that is at roo ...
We present the photo-Hall electrical properties of MBE-grown modulation-doped field-effect transistors (MODFET) structures using the so-called short-period superlattices (SPS) channel of InAs and GaAs instead of the standard InGaAs alloy channel. Photo-Hal ...
Carbon nanotubes are novel materials with unique electrical and mechanical properties. Here we present results on their atomic structure and mechanical properties in the adsorbed state, on ways to manipulate individual nanotubes, on their electrical proper ...
Electrodeposition on Highly Oriented Pyrolytic Graphite (HOPG) steps has been proven to be an easy method for the preparation of metal (Pd, Cu, Ag etc) and metal oxide or sulfide (MoO2, MnO2, MoS2) nanowires in recent years. These wires can be transferred ...
The responses of ion-sensitive FETs (ISFETs) with thermally grown SiO//2 gate regions and of electrolyte-SiO//2-Si (EOS) structures to stepwise changes in the pH were studied. A mechanism is also proposed in which one or other hydrogen-bearing species inte ...
