Quantum Efficiency Measurement |
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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. |
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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. |
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Included Measurement |
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- 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
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Optional Upgrades |
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- Constant Photocurrent method (CPM)
- Dual-Beam Photocurrent (DBM)
- Photothermal Deflection Spectroscopy (PDS)
- Steady-State Photoconductivity (SSPC)
- Temperature Control
- DC measurement
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Standards |
All Sciencetech systems incorporate adherence to industry standards. Sciencetech PV Testing System equipment are designed and manufactured according to: |
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- 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
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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) |
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Order Information |
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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 |
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PTS 2 IQE/IPCE |
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PTS 3 CPM |
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(upgrade) |
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PTS 3 DBM |
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(upgrade) |
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PTS 3 PTD |
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(upgrade) |
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PTS 4 SSP |
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(upgrade) |
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Brochure |
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PTS 2 Quantum Efficiency. Model EQE | IPCE and model IQE+EQE. |
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PTS 3 PTD Phototehermal Deflection Spectroscopy System |
Download |
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