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Quantum Efficiency Integration Spheres

Labsphere MP-10341-000 CUD SL version v1

Integration Sphere for Quantum Efficiency Measurements QE-CA-10309:

  • Integration sphere, special configured to allow customized set ups of efficiency systems
  • 3 different rotation center mount holder available: Clip style, powder and cuvette
  • SMA-fiber adaptor for detector / spectrometer
  • 6” internal diameter for Spectraflect coating, 5.3” internal diameter for Spectralon layer
  • Operating wavelength 250 nm to 2400 nm (with Spectralon sphere)
  • Max Laser power 5 to 10 W/cm²
  • Mechanical interfaces compatible to Labsphere´s calibration lamps, spectrometers and other accessories

Short Description

Labsphere offers under product code QE-CA-10309 an integration sphere, which is convenient for  setting up an quantum efficiency measurement system. The internal diameter is 6” (Spectraflect coating) and 5.3” (Spectralon lined). The Spectralon versions expand the operation wavelength range from 250 nm to 2400 nm. There are three different probe holders available: Clip-style, jaw style and powder style. The calibration of the sphere could be done with a calibration lamp, like the SCL-050 from Labsphere. In order to compliment the sphere to a full QE measurement system customer had to add a low stray light spectrometer and a light source (Laser or Xenon lamp). More details on the principle of the QE measurement could be found in the publication “An improved experimental determination of external Photoluminescence quantum efficiency“ from John Mello et all in Advanced Materials, 1997, 9, No.3.

The QE integration sphere QE-CA-10309 offers the base component to setup quantum efficiency measurement system. The integration sphere could easily be maximum flexibility to those customers who would like to set up their own configurable QE system. The sphere could be easily combined with a number of different components like spectrometer, probe holder, filter holder and light sources and allows the user to adapt the system to almost any possible QE configuration.


  • Determination of LED and OLED quantum efficiency
  • Characterization of phosphor powder and luminescent materials in lighting industry
  • Quantum dots, fluorescence probes, bio technology, Clathrate
  • Color sensitive solar cells
  • Chemical analysis