Quantum efficiency measurement system

Quantum efficiency measurement system

Products > Analytical > Fluorescence > QE-2100 series

QE-2100 series

QE-2100 series measure absolute quantum efficiency. Any form of samples, including films, powders, liquids, and solids can be measured. Integrating hemisphere and high sensitivity detector adopted in QE-2100 series minimize the effects of stray light in the ultraviolet region and remove re-excitation. Various analytical functions and easy operation encourage you to obtain absolute values of phosphor characteristics.



  • Instantly measure absolute quantum efficiency(yield)

  • Re-excitation function available

  • Optically optimized using an integrating hemisphere

  • Greatly reduce stray light in the UV region adopting low-stray light multi-channel spectrometer as a detector


  • User-friendly software

  • Easy cell loading and unloading

  • Compact design

  • Wavelength can be selected arbitrarily by using a spectrometer-type excitation light source

  • Automatic measurement by specifying the excitation wavelength and step value on the software


  • Versatile samples; film, powder, liquid, and solid

  • Various analysis functions

  • General-purpose type with independent measurement, detection, and light source parts can be extended according to applications

Detecting wavelength250 ~ 850nm
300 ~ 950nm
360 ~ 830nm360 ~ 1,100nm
Number of channel pixel512ch1,024ch512ch
Theoretical resolution per pixel
Detectorelectro-cooling CCD image sensor
AD resolution16bits
Spectrometer opticsflat field type(F=3, f=85.8mm)
Power supplyAC100-120V / AC200-230V

Quantum efficiency(yield), excitation wavelength dependency of quantum efficiency(yield),

reflectance spectra, PL excitation spectra, EEM(Excitation Emission Matrix), re-excitation

correction, emission spectra, transmittance, absorption spectra, color calculation(chromaticity, CCT, Ra, etc.)

Excitation light source

Light source150W xenon lamp
Excitation wavelength250 ~ 800nm
Band widthFWHM 5nm / slit 0.6mm
Protection from excitation lightautomatic shutter

Measurement items

  • Quantum efficiency(yield)

  • Excitation wavelength dependency

  • Emission spectrum

  • PL excitation spectrum

  • EEM(Excitation Emission Matrix)

  • Quantum Dot

  • LED and OLED materials

  • Thin film state sample such as remote phosphor

  • Quantum dot, fluorescent probe, biotechnology, clathrate

  • Dye sensitized solar cell

  • Complex chemistry

■ Optional functions

  • Automatic temperature dependency measurement
    - Temperature dependence of quantum efficiency can be measured
    (film sample: 20~150℃, powder sample: 50~300℃ / precision: less than ±1℃)
    - Responds to various types of samples by constructing the optical system according to its application

  • LED excitation light option available

  • Changeable to different wavelength ranges

  • Compatible with broadband(300~1600nm)

6F, 41, Seongnam-daero 925beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, 13496, Republic of Korea

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