+49 8152 983 78-90

Quantum Efficiency Test for Liquids and Solids


Quantum Efficient Measurement System QE-2000

  • Instant absolute quantum efficiency (yield measurement)
  • Re-excitation elimination function
  • Optically optimized geometry using integration hemisphere
  • Low stray light array spectrometer as detector
  • Detection wavelength range 250 nm – 1100 nm

Short Description

Newest generation of quantum efficiency (yield) measurement tool, which allows the user to determine QE of powders, liquids, solids and films. An optically optimized geometry using an integration hemisphere and low stray light array spectrometer enables world class measurements and new applications.

The compact table top device features a user friendly software, easy cell loading and unloading, selection of the excitation wavelength and a full automated measurement procedure. Various analysis functions are available.


  • Quantum efficiency (yield)
  • Excitation wavelength dependency
  • Emission spectrum
  • FL excitation spectrum
  • EEM (excitation emission matrix)

The QE-2000 allows much quicker measurements without darkroom and pre-known sample knowledge. Optional version QE-2100 with separate components allows temperature dependence analysis of quantum efficiency and wide detection wavelength range of 300 nm – 1600 nm.


  • LED and OLED materials
  • Thin film state sample such as remote phosphor
  • Quantum dot, fluorescent probe, biotechnology, clathrate
  • Dye sensitized solar cells
  • Complex chemistry