LumiSolarCell PL
Model Specification LumiSolarCell PL
| Characterisation methods | Photoluminescence: PL imaging, biased PL| Minority carrier lifetime mapping |
| Weight | 75 kg |
| Dimensions of housing | 715mm x 600mm x 1120mm |
| Inspection capabilities | Micro-cracks identification | Paste properties | Local lifetime | Dead cells | Broken cells | Inhomogeneities and impurities |
| Areas of application | Inspection of wafers, processed solar cells and thin film substrates | Research and development | Characterization and qualification | Failure analysis | Identification/sorting of wafers & cells |
| Successfully tested on various solar cell types | Monocrystalline silicon (mono-Si) | Polycrystalline silicon (poly-Si) | Amorphous silicon (a-Si) | Copper indium sulfide (CIS) | Copper indium gallium selenide (CIGS) | Cadmium telluride (CdTe) | Heterojunction with intrinsic thin layer (HIT) |
| Advantages of the system | Non-contacting characterization through PL measurement | Unique, award-winning HighPower LED light source | Outstanding image quality | No limiting safety requirements in contrast to laser-based PL systems | Industry proven all over the globe | Cost over performance | Scalable set-up |
| Power supply input | 100-240V, 50/60Hz |
| Typ. exposure times | 0.1sec-10sec depending on the substrate and type of measurement |
| PL light source | HighPower LED array | Adjustable intensity, max. 1500W/m² (>1 Sun) | Homogeneity >90% |
| Image size | 1024 × 1024 pixel, 16 bit or 2048 × 2048 pixel, 16 bit |
| Image resolution | 150 or 80 µm/pixel |
| Substrate size | 200 x 200 mm |
| Functionalities | PL, biased PL |
Software
LumiSolarCell Software
The LumiSolarCell software controls the camera and visualizes the data sets. The program can generate intensity profiles from the 16bit 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.
| Selected Specifications | |
| System requirements | Windows XP / Vista / 7 / 10 USB 2.0 Interfaces |
| General functions | Single shot, videomode load & save images, quicksave |
| Image data formats | BMP, JPEG, TIFF, Raw data, TXT |
| Visualisation | Gray scale or false-color Zoom functions Linear / logarithmic scaling Intensity profiles |
| Special functions | Distance measurements Remote control of power supply Automatic background substraction |
