Quantum Efficiency Measurement

 

 

 
 
Sciencetech Quantum Efficiency Measurement Capability

The quantum efficiency (QE) of a device is a measure of its ability to convert incoming photons into electrons or other charge carriers. For example, a device with a Quantum efficiency (QE) of 50% will produce 50 electrons of signal if it receives 100 photons. QE is critical for  light-detecting devices such as cameras, solar cells, and photodetectors. Quantum efficiency (QE)    is determined by the wavelength of the photons as well as the characteristics of the device material. Quantum efficiency (QE) can be eternal or internal, and it can be described as a function of wavelength or energy.

 
 

Quantum efficiency measurement systems allow users to quantify the performance of photovoltaic cells. Quantum efficiency focuses on the proportion of the incident photons applied to the cell that are successfully collected.

 
 
Included Measurement
 
  • Current-Voltage (I-V) Testing.  VOC , ISC, Rshunt, Pmax, efficiency %, and fill factor
  • Spectral Response (SR): 250-2500nm range
  • External Quantum Efficiency (EQE) | (IPCE)
  • Internal Quantum Efficiency (IQE Test)
  • Reflectance and transmittance measurements
 
 
Optional Upgrades
 
  • Constant Photocurrent method (CPM)
  • Dual-Beam Photocurrent (DBM)
  • Photothermal Deflection Spectroscopy (PDS)
  • Steady-State Photoconductivity (SSPC)
  • Temperature Control
  • DC measurement
 
 
Standards

All Sciencetech systems incorporate adherence to industry standards. Sciencetech PV Testing System equipment are designed and manufactured according to:

 
  • ASTM E 1021-15: Standard Test Method for Spectral Responsivity Measurements of Photovoltaic Devices
  • ASTM E948-09: Standard Test Method for Electrical Performance of Photovoltaic Cells Using Reference Cells Under Simulated Sunlight
  • IEC 60904-8: Measurement of spectral responsivity of a photovoltaic (PV) device
  • IEC 60904-1: Measurement of photovoltaic current-voltage characteristics

Test cell included for verification (SCI-REF-NL). SCIENCETECH include a complete Quality Control Report including test results (Calibration, Spectral response, quantum efficiency and IV measurements)

 
 
Order Information
 

 Models

 IV
 Curves

 Spectral
 Response
 (SR)

 External
 Quantum
 Efficiency
 (EQE)

 Internal
 Quantum
 Efficiency
 (IQE)

 Constant
 Photocurrent
 Method
 (CPM)

 Dual
 Beam
 Photocurrent
 (DBP)

 Photothermal
 Deflection
 Spectroscopy
 (PDS)

 Steady State
 Photoconductivity
 (SSPC)

 PTS 2 QE/IPCE

     •

     •      •          
 PTS 2 IQE/IPCE
     •
     •      •

       •

       
 PTS 3 CPM
     •
     •      •

 (upgrade)

       •      
 PTS 3 DBM      •      •      •  (upgrade)          •    
 PTS 3 PTD      •      •      •  (upgrade)            •  
 PTS 4 SSP      •      •      •  (upgrade)              •
 
 
Brochure
 
PTS 2 Quantum Efficiency. Model EQE | IPCE and model IQE+EQE. Download

PTS 3 PTD Phototehermal Deflection Spectroscopy System

Download