FlexPL

Allgemeine Informationen

Untersuchungsgebiete
Spectroscopy
Techniken
Low temperature photoluminescence
Raman spectroscopy
Hersteller
Various
Gemessene Gr??e
Photoluminescence and Raman signal giving rise to numerous measured quantities (strain, doping concentration, carrier mobility, native and foreign defects, excitons, band-band transitions, etc.)
Hauptanwendung
Measuring photoluminescence and Raman spectra down to a temperature of 9 K in a He-cryostat or up to 1100 K in a heating stage. Mapping with high spatial resolution is available.
Hochdurchsatzanalysen
Ja
Korrelierter Arbeitsablauf verfügbar
Ja

Technische Aspkete
The setup has two mapping functions allowing to map the photoluminescence and Raman spectra on a large scale (several centimeters) and a small scale (100 x 100 ?m?, sub-?m steps). Various microscope objective lenses are available for the second mapping option. Furthermore, the entire setup can be adapted to individual needs, giving rise to the name "FlexPL". A multitude of optics (filters, polarizers, waveplates, etc.) can be added to the beam path to ensure best spectroscopic results. High resolution but also overview photoluminescence spectra can be obtained in a spectral range of 360 - 950 nm (CCD and poit-detector detection). Therefore, various excitation sources are available (e.g., 266 nm). Raman spectra can be acquired with a 561 nm or 660 nm laser. The setup is build in a "microscope configuration", allowing for an imaging of most sample surfaces by light microscopy.
Korrelierter Arbeitsablauf
Weitere Untersuchungsm?glichkeiten
Depending on the outcome of the measurements with the FlexPL system, there is always the possibility to transition towards other spectroscopic equipment of the RG Callsen based on a collaboration.

Anwendungswissenschaftler
Jana Lierath
Fachbereich 1
IFP / RG Callsen NW1 W4090
Telefonnummer
lierathprotect me ?!uni-bremenprotect me ?!.de
Gordon Callsen
Fachbereich 1
IFP / RG Callsen NW1 W4120
Telefonnummer
gcallsenprotect me ?!uni-bremenprotect me ?!.de
Führender Anwendungswissenschaftler
Gordon Callsen

Aktualisiert von: MAPEX