Allgemeine Informationen

• Untersuchungsgebiete

  Spectroscopy
• Techniken

  Low temperature photoluminescence
  Raman spectroscopy
  
• Hersteller

  Various
• Gemessene Größe

  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

Spezifikationen des Geräts

• 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 µm², sub-µm 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 Untersuchungsmöglichkeiten

  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.

Kontaktperson

• 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
  

Gerätestandort

• Gruppe

  RG Callsen
• Gebäude

  NW1
• Raum

  S4101
• Fachbereich

  Fachbereich 1
• Institut Der Universität Bremen

  IFP