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Photoelectric spectrometer for quantum efficiency measurement

Photoelectric spectrometer serves as a scientific tool to automatically characterize photoelectrical properties (photocurrent, photovoltage) of wide band gap semiconductors

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Net price: 27
Gross price (with tax) 33.21
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Description

The photoelectric spectrometer serves as a scientific tool to automatically characterize photoelectrical properties (photocurrent, photovoltage) of wide band gap semiconductors illuminated by relatively strong light in UV, VIS and NIR ranges as a function of incident light wavelength.
To approximate solar light for many applications we offer Air Mass Filters. These filters modify the spectral output of the arc lamp to mimic natural solar conditions.

Due to a reflector engulfing the lamp, the setup has very good efficiency:

  •  up to 70% of emitted radiation is captured by the reflector and directed at an illuminated sample
  • the unit provides also three types of stabilization: electric current, electric power and light intensity stabilization – the last mode helps the long term (order of hours) stability of the output beam
  • it also reduces the warm up time to about 3 minutes as compared with 30 minutes or longer with current stabilization

Advanced software of the spectrometer allows for straightforward recording of photocurrent action spectra, photovoltage action spectra along with potentiodynamic and galvanodynamic measurements at constant wavelenght both in CW and pulsed mode. It also provides Incident Photon to Converted Electron (IPCE) ratio as a function of wavelength and bias potential.
Furthermore, the device can be coupled with other detectors, including Kelvin probes, conductivity probes, etc. The devices’ controller takes care of emitted light wavelength, exposition times, proper light edge filters handling and synchronization with a potentiostat.
The monochromator is equipped with two switchable gratings to uniformly cover a wide light spectrum. The light power exceeds 10 mW/cm2) in most of the spectral range.

 

Spectrometer module system

The spectrometer is ready to be connected with peripherial devices like potentiostats, Kelvin probes, synchronous light choppers for lock-in amplified measurements, rotating disk electrodes, electromagnetic valves, LED illuminators, magnetic stirrers, automatic pipettes, temperature controllers, etc.

Many of those peripherials, potentiostats included, can be directly ordered from Instytut Fotonowy.

 

click the photo to enlarge

Specification

The parameters shown beneath are typical for the devices produced so far. All of them can be tailored to specific requirements if necessary.

  • Light source: Xe 150 W, water cooled, with low EM emission igniter
  • stabilization modes: current stabilization (distortions < 1%), power consumption stabilization and light intensity stabilization mode that keeps the illumination of a sample constant during the experiment.
  • Two gratings system: 1200 grooves/mm with 300 nm blaze wavelength and 500 nm blaze wavelength
  • Maximal light power density: 35 mW/cm2

  • Edge (long pass) filters: 400 nm and 510 nm
  • Up to 6 filters possible
  • Number of I/O programmable TTL lines for synchronization with external devices: 16
  • Connectivity: USB 2.0

Typical light power densities at the output slit:

Examples

The spectrometer can be used for automatic measurements and visualization of obtained results. At the top,  there is a typical photocurrent action  map. It is  photocurrent values versus light wavelength and applied potential.

The bottom plot contains IPCE map.

In the software, one can switch between the two with a single mouse click.

click the photo to enlarge

 

 

BUY PRODUCT
Step 1
Photoelectric spectrometer
Net price: 27
Gross price (with tax) 33.21
  • pln
  • usd
  • eur
Accessories The following accessories are compatible with the product
Potentiostat
Net price: 4.2
Gross price (with tax) 5.166
xau
Kelvin Probe
Net price: 25
Gross price (with tax) 30.75
xau
Electrochemical cell for transparent samples
Net price: 0.25
Gross price (with tax) 0.3075
xau
Electrochemical cell for opaque samples
Net price: 0.5
Gross price (with tax) 0.615
xau
Absolute IPCE calibrator
Net price: 1.4
Gross price (with tax) 1.722
xau
Water cooling system
Net price: 0.0732
Gross price (with tax) 0.090036
xau
Xenon Short Arc, 150 W
Net price: 0.4
Gross price (with tax) 0.492
xau
Air Mass 1.5G filter
Net price: 1
Gross price (with tax) 1.23
xau
Dummy cell
Net price: 0.4
Gross price (with tax) 0.492
xau
Cell holder for white light output
Net price: 0.2
Gross price (with tax) 0.246
xau
Product
Net price: 27
Gross price (with tax) 33.21
xau
Accessories
Net price: 0
Gross price (with tax) 0
xau
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CONTACT US - We will address all your questions + 48 733 003 380 office@fotonowy.pl
142,493,68174,3030