Mini photoelectric spectrometer Excellent for basic sample characterization

Photocurrent and OCP measurements under illumination from LED revolver.


This is an entry level setup for photoelectrochemistry. It consists of a potentiostat, a LED revolver, a universal electrochemical cell and a set of electrodes: reference Ag/AgCl and  platinum counter electrode.
The device is ready for two and three electrode measurements.
The LED revolver delivers irradiation from 1 of 10 LEDs in UV, VIS and NIR range. One can perform current measurements when potential and light intensity are scanned across set ranges.
A sample is placed in a PTFE electrochemical cell that handles both transparent and opaque substrates.

Although this is a simplified version of a full photoelectric spectrometer, it is rich in measurement possibilities.

Quantities measured by the instrument:

  • Current as a function of set bias potential,
  • Open Circuit Potential (OCP),
  • I-V characteristics of a sample under illumination,
  • Photocurrent at a large range of light intensities,
  • IPCE or EQE at wavelengths present in the LED revolver,
  • SPV (Surface Photovoltage),
  • Space Charge Region capacitance if there is a super-bandgap, wavelength in  LED revolver.
Click the photo to enlarge


  • Current ranges: 10 mA, 1 mA, 100 µA, 10 µA, 1 µA, 100 nA.
  • Current resolution: 1 pA
  • Potential ranges: -5 V do 5 V
  • Default LED set [nm]: 365, 385, 405, 450, 520, 590, 630, 740, 840, white (see LED revolver for details)
  • Typical LED power: 3 W

  • Measurement techniques: chronoamperometry, voltammetry, cyclic voltammetry, and more
  • Reference electrode: Ag/AgCl
  • Counter electrode: Pt
  • PTFE electrochemical cell for both types of samples: transparent and opaque substrates
  • Computer connectivity: USB 2.0
exemplary results

I-V characteristics

kliknij obrazek, aby powiększyć

OCP versus light intensity

kliknij obrazek, aby powiększyć

3D map of I-V curves for different light intensities

kliknij obrazek, aby powiększyć


PhotoelectricLED 12/11/2019 Zobacz
ACCESSORIES The following accessories are compatible with the product
Dummy cell
LED revolver
Light Calibrator
Platinum electrode
Silver chloride reference electrode
Sample Chamber
Universal cuvette
LEAVE YOUR CONTACT INFORMATION - We will respond within 48h

Error: Contact form not found.

CONTACT US - We will address all your questions + 48 733 003 380 office@fotonowy.pl

Similar products