LBIC
The infinityPV Professional LBIC desktop system enables fast high resolution mapping of the photovoltaic response over large areas
LBIC - Laser Beam Induced Current
Ultrafast LBIC mapping is carried out with a laser spot having a diameter of 40 microns that is modulated over a testing area of 250 x 250 mm2 to create a map, with mapping time of only seconds. The practical resolution is < 100 micron and depends on the surface of the solar cell. The infinityPV approach to LBIC is inherently immune to noise and enables mapping of concave and convex PV surfaces which is ideal for flexible solar cells. The turn-key system is controlled using the included infinityPV software with auto calibration, active area calculation, color maps and simple scanning area selection for fast and easy imaging of any PV technology.
With accessible wavelength range of 400-1100 nm this system is ideally suited for mapping of single junctions, tandem devices and modules (differences in junctions’ ideality may lead to differences in signal strength between different junctions in a module). The LBIC maps allow for easy identification of defects, coating errors, shunts and photovoltaically inactive regions. It is ideal for highlighting failure over time of solar cells and modules that have been subjected to accelerated ageing tests i.e. ingress of permeants and contact failure is easily identified.
LBIC - Key highlights
The Professional LBIC is unique on several fronts:
Two configurations: Basic and Advanced
Ultra high mapping speed
Laser based solar PV response mapping
Ideal for quality control & identification of defects
Active area determination (e.g. for efficiency calculation)
High resolution scan (enhanced details)
Laser wavelength of 400 – 1100 nm
Mapping resolution <100 µm (40 µm spot)
250 x 250 mm2 testing area
User friendly software
Multi-wavelength (up to 4)
Light bias
Electrical bias option
Turn-key system
LBIC - Options and installation
The Professional LBIC comes in two different configurations: a Basic and an Advanced.
| Professional LBIC Basic | Professional LBIC Advanced | |
|---|---|---|
| Test area | 250 x 250 mm2 | 250 x 250 mm2 |
| Mapping resolution (µm) | <100 | <100 |
| Laser spot size | ~40 µm | ~40 µm |
| Laser Wavelength | 410 nm | 400 -1100 nm |
| Mapping speed | Seconds - minutes | Seconds - minutes |
| No. of lasers | 1 | Up to 4 |
| Field modulators | Yes | Yes |
| Preamplifiers | Yes | Yes |
| Light bias | No | Yes |
| Modulation of light source | No | Yes |
| Phasing of light sources | No | Yes – when 2 or more lasers |
| Electrical bias | Optional | Optional |
| EQE device and software | Optional | Optional |
| Laptop with infinityPV LBIC software | Yes | Yes |
LBIC - Videos
Professional LBIC
Economy LBIC, solar cell light beam induced current mapping by infinityPV
The Academic LBIC
Real-time degradation with LBIC
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