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Solar Cell Inspection

Electroluminescence (EL) and Photoluminescence
(PL) inspection systems

Solar Cell Inspection

Highly sensitive inspection systems for solar cells

Processed wafers and solar cells suffer from a variety of invisible defects which reduce their output power and long-term stability. The highly sensitive inspection systems from greateyes image these problems. This allows you to optimise production, increase output power, and reduce overall costs.

Furthermore greateyes inspection systems integrate a variety of different inspection methods in a compact, safe, and low-maintenance device. They are used for detailed characterisation of solar cells in the production as well as in research and development.

LumiSolarCell - innovative, award winning system

The award-winning LumiSolarCell System utilises the photoluminescence, electroluminescence, and infrared phenomena to image micro cracks, shunts, regions of low lifetime, inhomogeneities, hot spots, or other cell failures of photovoltaic cells or wafers.

EL, PL, and IR as contactless, and therefore non-destructive, methods are an indispensable tool for advanced solar research. In addition to that, the series resistance (Rs) can be measured by an algorithm which compares EL images taken under low and high current conditions. The knowledge gained will lead to increased product quality and yield.

Different versions of the LumiSolarCell system are available:

  • Pure EL
  • Pure PL
  • Combined EL PL with the option to add IR and dark-lock-in thermography or Series Resitant (Rs) measurements

We also offer off-line, automated batch system, and OEM in-line options – please get in touch to discuss your specific requirements.

Features & Benefits

  • Turnkey system
    Featuring highly-sensitive scientific CCD-camera
  • Outstanding sensitivity and image quality
    Enabling measurement of multiple PV technologies such as Si-based cells and wafers as well as thin film modules
  • Award winning system
    Industry proven all over the globe
  • Unique high-power LED light source
    Safe with no limiting safety requirements compared to laser-based systems
  • Combined EL / PL / IR / Rs system
    in a compact, low maintenance table top device
  • Inspection of wafer and solar cells
    Flexibility to measure a variety of different wafer materials, such as mono-Si, a-Si, CIS, HIT and many more

System Components

  • Highly-sensitive scientific CCD-camera
    With very short exposure times outperforms commercially available PL systems
  • High-power LED light source
    Developed and produced by greateyes

LumiSolarCell Gallery

Caption (need to ask Roman)
Caption (need to ask Roman)
Caption (need to ask Roman)

LumiSolarCell software

Providing camera control and data set visualisation

The LumiSolarCell software controls the camera and visualizes the data sets. The program can generate intensity profiles from the 16-bit high dynamic range image data. Basic picture manipulation procedures are included in the software. Dimension measurements of artefacts are possible following calibration as well as remote control of power supply and high power LED light source.

Software Features

General functions:

  • Single shot, videomode
  • Load and save images, Quicksave

Image data formats:

  • BMP, PNG, JPEG, TXT, raw data, and TIFF (18 bit) 

Visualisation:

  • Gray scale or false-colour
  • Zoom functions
  • Linear / logarithmic scaling
  • Intensity profiles

Special functions:

  • Distance measurements
  • Remote control of power supply
  • Automatic background subtraction

System requirements:

  • Windows 10 / 11
  • USB 2.0 Interfaces

Request more information

    greateyes GmbH

    Ludwig-Boltzmann-Straße 3
    12489 Berlin
    Germany

    For Service & Support

    Contact Us

    Ludwig-Boltzmann-Straße 3
    12489 Berlin

    Phone:
    +49 (0)30 221 844 700
    Email:
    info@greateyes.de