Photoluminescence

Description

This spectroscopic method can analyse semiconductor, organic or inorganic materials. By absorbing a photon, an electron from the valence band moves up to the conduction band. When the electron loses its energy and goes back to the valence band, it emits a photon that can be analysed to determine the band structure, identify impurities or measure the oscillator forces of the material.

Uses

  • Measure semiconductor impurities
  • Analyse the band structure
  • Analyse impurities

Technical specifications

Resolution / sensitivity : 0.005 nm
Lateral resolution : 1 mm
Other characteristics : Temperature : 4 to 300 K, wavelength range : 400 – 2000 nm in CW PL, time resolution (TRPL) : < 1 ns
   
Manufacturer : BOMEM
Model : DA-3
   
Manufacturer : ISA
Model : U1000
   
Manufacturer : ORIEL
Model : MS260i
   
Manufacturer : PI-Acton
Model : TriVista