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LumiSolarCell EL

Electroluminescence (EL) inspection of Photovoltaic Cells and Wafers

LumiSolarCell EL

Compact, award winning EL inspection system

The characterisation methods of the LumiSolarCell EL include various electroluminescence (EL) techniques. These methods encompass EL and reverse-biased EL imaging, which are employed to assess the performance and integrity of solar cells.

Additionally, the measurement of local cell voltage and the mapping of local current density provide detailed insights into the electrical characteristics and efficiency of the cells. An optional technique includes the evaluation of series resistance, further contributing to the comprehensive analysis of the solar cell’s performance.

Successfully tested on various Solar Cell types:

  • Monocrystalline Silicon (mono-Si)
  • Amorphous Silicon (a-Si)
  • Copper Indium Gallium Selenide (CIGS)
  • Heterojunction with Intrinsic Thin Layer (HIT)
  • Polycrystalline Silicon (poly-Si)
  • Copper Indium Sulfide (CIS)
  • Cadmium Telluride (CdTe)

Inspection capabilities:

  • Micro-cracks identification
  • Dead cells
  • Broken cells
  • Inhomogeneities and impurities
  • Local lifetime
  • Shunt detection
  • Finger defects
  • Hotspots
  • Paste properties

Features & Benfits

  • Outstanding sensitivity and image quality
    Enabling measurement of multiple PV technologies
  • Contactless characterisation
    Non-destructive EL measurement
  • Award winning system
    Industry proven all over the globe
  • Scalable set-up
    In terms of intensity and supported cell sizes 
  • Turnkey system
    Featuring highly-sensitive scientific CCD-camera

Applications

  • Inspection of wafers, processed solar cells,
    and thin film substrates
  • Research and Development
  • Characterisation and Qualification
  • Failure analysis
  • Identification/sorting of wafers and cells

Specifications

Functionalities

EL, reverse-biased EL

Image size

1024 x 1024 pixel 16-bit, or 2048 x 2048 pixel 16-bit

Image resolution

150 µm/pixel, or 80 µm/pixel

Substrate size

max. 200 mm x 200 mm

Typical exposure times

0.1 sec - 10 sec depending on the substrate and type of measurement

Power supply input

100-240V, 50/60 Hz

EL excitation source

0-80V, 0.9.5A

EL contacting adapter

Adapter for 5 and 6 inch cells (156 mm x 156 mm) included Flexible design for 2 - 5 bus bars Vacuum contact adapters for IBC cells available as an option

Dimensions of housing

715 mm x 600 mm x 1120 mm

Dimensions of housing

75 kg

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