Complete Testing Solutions

Photovoltaic devices are so called since they rely upon the photovoltaic effect that was first discovered by a French experimental physicist, Edmund Becquerel, in 1839 to generate a current/voltage upon exposure to light. However, the history of practical PV devices did not begin until 1954 when Bell Laboratory first demonstrated a silicon solar cell with a conversion efficiency of 6%.

 Sciencetech Inc. has been designing and manufacturing modular optical spectroscopy instruments and components for over 30 years. They are widely used all over the world in research laboratories, universities and companies. Sciencetech instruments are designed with the researchers in mind and feature fully adjustable controls for research flexibility. All Sciencetech systems incorporate modular design and adherence to industry standards for easy integration with other supplier’s instruments and components.

 Sciencetech Inc. designs and fabricates four different variants of Photovoltaic Testing System (PTS), as shown in the following table, for implementation of different experimental methods.

 

 

 

 

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  1. Photovoltaic Testing System - Spectral Response

    (PTS-1-SR) Spectral Response System

    The PTS-1-SR system includes a lamp and monochromator for a tunable light source, which is coupled to a high sensitivity source meter with measurement software. This user-friendly system is the most powerful Spectral Response system currently on the market, but its true power is the ease of upgrading from the base PTS-1 to the more powerful PTS-2-QE (Quantum Efficiency) or PTS-3-CPM (Constant Photocurrent Method). Designed for researchers who have limited budgets but want to start work immediately, this allows the ability to do baseline studies until additional funding for the full QE or CPM system becomes available.
    Please speak to a Sciencetech Technical Specialist for further information.
    PTS-1 Includes:
    -IV Testing
    -Spectral Response Learn More
    USD$38,500.00
  2. Photovoltaic Testing System Quantum Efficiency

    (PTS-2-QE) Quantum Efficiency/IPCE System

    The PTS-2-QE system allows an overall "external" quantum value measurement, which is considered the most important factor in cell testing. It includes all the Spectral Response equipment of the PTS-1, as well as a bias light and additional electronics and software to seamlessly allow user-friendly measurements of Quantum Efficiency. The PTS-2 can be upgraded to include Internal Quantum Efficiency measurements, or to include the necessary parts to allow Constant Photocurrent Method measurements (PTS-3).
    PTS-2-QE Includes:
    -IV Testing
    -Spectral Response
    -Quantum Efficiency/IPCE Learn More
    USD$40,125.00
  3. Photovoltaic Testing System Constant Photocurrent Method

    (PTS-3-CPM) Constant Photocurrent Method System

    The PTS-3-CPM allows users the same ability to measure IV, Spectral Response, and Quantum Efficiency as the PTS-1 and PTS-2, but adds the powerful Constant Photocurrent Method (CPM). The CPM system illuminates the sample solar sell with a bias solar light source while a separate light source is modulated to cover a specified spectrum. The bias source ensures that the signal is not dominated by the non-linear response at low-level illumination, but rather gives a baseline response dependent on the wavelength of the modulated source. This allows for a highly precise measurement of defect density. Please speak with a Sciencetech Technical Specialist for more information.
    PTS-3-CPM Includes:
    -IV Testing
    -Spectral Response
    -Quantum Efficiency/IPCE
    -CPM Measurements Learn More
    USD$92,500.00
  4. Photovoltaic Testing System Dual Beam Photocurrent

    (PTS-3-DBM) Dual Beam Photocurrent Method

    The PTS-3-DBPM has the same ability to measure IV, Spectral Response, and Quantum Efficiency as the PTS-1 and PTS-2 systems, but adds the powerful technique of the Dual Beam Photoconductivity Method. The DBPM system is based on maintaining constant photocurrent over the range of photon energy to get constant quasi-Fermi levels. Furthermore, the DBPM system has the additional capability to vary the bias light source intensity. This changes the electron-hole and quasi-Fermi levels to yield additional information about defect states. Please speak to a Sciencetech Technical Specialist for further information.
    PTS-3-DBPM Includes:
    -IV Testing
    -Spectral Response
    -Quantum Efficiency/IPCE
    -DBPM Measurements Learn More
    USD$93,800.00
  5. PTS-3

    (PTS-3-PTD) Photothermal Deflection System

    The PTS-3-PTD has the same capabilities to measure IV, Spectral Response, and Quantum Efficiency as the PTS-1 and PTS-2 systems, but adds the powerful photothermal deflection spectroscopy (PDS) method allowing for the direct measurement of the sub-gap absorption of the sample by utilizing the mirage effect. Please speak to a Sciencetech Technical Specialist for further information.
    PTS-3-PTD Includes:
    -IV Testing
    -Spectral Response
    -Quantum Efficiency/IPCE
    -PDS Measurements Learn More
    USD$94,750.00
  6. PTS-4 Steady State Photoconductivity

    (PTS-4-SSP) Steady State Photoconductivity System

    The PTS-4-SSP allows the user the same ability to measure IV, Spectral Response, and Quantum Efficiency, and includes CPM as the PTS-1, 2, and 3-CPM systems, but adds the powerful Steady State Photoconductivity (SSP) method to the extensive tools already available. The steady state photoconductivity measurements give information about the nature of defects, mobility-lifetime products, and the transport and recombination kinetics of photogenerated carriers. Please speak to a Sciencetech Technical Specialist for further information.
    PTS-4-SSP Includes:
    -IV Testing
    -Spectral Response
    -Quantum Efficiency/IPCE
    -CPM Measurements
    -SSP Measurements Learn More
    USD$124,500.00
  7. UJig

    (UJP-100-LR-16) U-Jig package, 100x100mm target, 16bit DAQ

    Target size: 100x100mm
    DAQ: 16 bit
    Detector size : 20x20mm (apertured to 12.5x12.5mm)
    Detector Type: SCI-REF-LR
    Connectivity: 1 x USB2.0
    Power Requirements: 120VAC x 4A / 220VAC x 2A
    Dimensions: 200x200x125
    Learn More
    USD$6,000.00
  8. UJig

    (UJP-350-LR-16) U-Jig package, 350x350mm target, 16bit DAQ

    Target size: 350x350mm
    DAQ: 16 bit
    Detector size : 20x20mm
    Detector Type: SCI-REF-LR
    Connectivity: 1 x USB2.0
    Power Requirements: 120VAC x 4A / 220VAC x 2A
    Dimensions: 600x600x125
    Learn More
    USD$8,850.00
  9. UJig

    (UJP-500-LR-16) U-Jig package, 500x500mm target, 16bit DAQ

    Target size: 500x500mm
    DAQ: 16 bit
    Detector size : 20x20mm
    Detector Type: SCI-REF-LR
    Connectivity: 1 x USB2.0
    Power Requirements: 120VAC x 4A / 220VAC x 2A
    Dimensions: 800x800x125
    Learn More
    USD$10,125.00
  10. Quantum efficiency

    PTS Internal Quantum Efficiency/IPCE Upgrade

    For Internal Quantum Efficiency, instead of attempting to measure reflectance losses directly using an integrating sphere method, Sciencetech determines total QE losses by making two QE measurements under different conditions which emphasize external surface effects, allowing losses due to reflection and scattering to be inferred more accurately than would normally be possible to measure. This allows a wider range of sample sizes, and provides accurate, precise information on IQE.
    Learn More
    USD$9,500.00

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