Sökning: "Photoluminescence"
Visar resultat 1 - 5 av 168 avhandlingar innehållade ordet Photoluminescence.
1. Photoluminescence Studies of Polytype Heterostructured InP Nanostructures
Sammanfattning : The interface between two semiconductors significantly influences their optical and electronic properties. In contrast to traditional material heterostructures, polytype heterostructures between wurtzite (wz) and zincblende (zb) segments in homomaterial InP nanostructures exhibit sharp interfaces with minimal strain. LÄS MER
2. Photoluminescence Studies of Single Quantum Dots
Sammanfattning : This thesis presents photoluminescence (PL) spectroscopy studies of single III-V semiconductor quantum dots (QDs). The electronic properties of the QDs, as well as, the dynamics of the processes taking part inside and in the surroundings of the QDs have been studied by single quantum dot photoluminescence spectroscopy, time resolved spectroscopy, and correlation spectroscopy. LÄS MER
3. Photoluminescence-based characterization of bioengineered nanovesicles and erbium emitters
Sammanfattning : In recent decades, photoluminescence properties of single molecules and ions have opened new possibilities for studies on smaller size scales, below the light-diffraction limit. In this thesis, the advantages of such single photon emitters were harnessed and studied mainly in the field of biophysics, but also, in investigations within solid state photonics. LÄS MER
4. Automated Photoluminescence Experimentation for Understanding Dynamic Metal-Halide Perovskite Semiconductors
Sammanfattning : Metal halide perovskites have garnered significant attention for their remarkable optoelectronic properties and unique photophysical characteristics. Combined with low cost for fabrication, this new class of materials is among the most promising candidates within next generation photovoltaic technologies. LÄS MER
5. Optical studies of crystal phase heterostructures
Sammanfattning : III-V semiconductors are commonly used for a variety of optical applications, such as LED based lights and solar sells. Most III-V semiconductors, such as GaAs and InP, exhibit the zinc-blende (zb) crystal structure, but in the form of nanowires it is also possible to create them in the wurtzite (wz) crystal structure. LÄS MER