Photon etc. presents GRAND-EOS, a unique hyperspectral camera suitable for analyzing solar cells and advanced materials in the visible (VIS), near-infrared (NIR), and short-wave infrared (SWIR). Based on Photon etc.’s high-performance tunable imaging filter technology, this hyperspectral imager delivers, both macro- and microscopic, crisp images and detailed spectral data across hundreds of thousands of points across the field of view.
GRAND-EOS not only captures large amounts of spatial and spectral information but also boasts a rapid data acquisition process, thanks to its high filter throughput (unpolarized wavelength selection) and imaging sensor sensitivity. This hyperspectral imaging system offers four essential measurement modalities: transmittance, reflectance, electroluminescence (EL), and photoluminescence (PL). The resulting maps provide researchers with an efficient tool for studying the spatial distribution of defects, constraints, and optoelectronic properties of the new generation of photovoltaic and other advanced materials.
Key Features & Applications
The main features and applications of the GRAND-EOS are:
- Field of view compatible with the size of the latest generation of photovoltaic cells
- Transmittance, reflectance, photoluminescence, and electroluminescence modalities for defects, impurities, and optoelectronics properties mapping
- Uniform illumination to guarantee homogeneous excitation across the entire field of view
- Mapping of the spatial distribution of defects, impurities, and variation in material composition;
- Characterization of the impact of a material’s micro and macrostructure on carrier generation, recombination, and transport
- Fast hyperspectral data acquisition due to high throughput global imaging tunable filter (wavelength scanning - no spatial scanning) and high imaging sensor sensitivity
- Continuously tunable from 400 to 1620 nm to cover the spectral responses of a wide range of materials such as perovskites, GaAS, SiC, Si, CIS//GIGS
- Custom field of view (micro and macro modes)
Other Applications
- Counterfeit examination
- Forensic research
- Food and plant sorting
- Those techniques have already been successfully used to characterize inhomogeneities in CIS and perovskite solar cells.
Specifications
| Spectral Range |
400 - 1620 nm (reduced 400-1000 nm and 900-1620 nm spectral ranges are also available) |
| Spectral Resolution |
< 4 nm |
| Wavelength Absolute Accuracy |
0.25 nm |
| Imaging sensor |
sCMOS and Photon etc.'s InGaAs camera (ZephIR™ 1.7 or Alizé™ 1.7) |
| Field of view (customizable) |
20 x 20 mm to 210 x 210 mm (other FOV available upon request) |
| Micro-imaging magnification |
5X, 10X |
| Wavelength Absolute Accuracy |
0.25 nm |
| Software |
Computer with PHySpecTM control and analysis software included with unlimited free licenses |
| Options & Accessories |
Absolute photometric calibration, micro-imaging modality, white light illumination, laser excitation |
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