infinityPV LBIC Economy
The infinityPV LBIC Economy desktop system enables fast high resolution mapping of the photovoltaic response over large areas.DOI:10.1002/adom.201400016DOI:10.1002/ente.201300154DOI:10.1016/j.solmat.2010.11.007
NEW Solar Workstation
Ultrafast laser beam induced current (LBIC) mapping is carried out with a laser spot having a diameter of 40 microns that is modulated over a surface to create a map. The accessible wavelength range is 400-1100 nm. In the standard configuration a wavelength of 410 nm is employed with a testing area of 30 x 30 cm2. 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 enable mapping of concave and convex PV surfaces which is ideal for flexible solar cells. The rough front window surface with scattering gives rise to conformably mapped error signals and must be minimized.
The system is controlled using the infinityPV software that is preinstalled on the laptop PC that is included. The system is fully CE approved and accepts line voltages in the range of 110-240 VAC (single phase).
Modules and single cells are easily characterized rapidly and with a large degree of immunity to external light input. The optical resolution is always < 100 micron but can be chosen to be lower in cases where imaging speed is favored i.e. during quick overview scans where 30 x 30 cm2 is typically scanned in a few seconds. High resolution imaging of a 30 x 30 cm2 area takes a few minutes. The software has a large number of scanning modes that involves the choice of both optical and electrical handling. The system is ideally suited for single junctions but allows for mapping of modules also (differences in junction 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 cabinet with power supplies and leads
- Optics system for 410 nm mapping in the standard configuration
- Electronics, field modulators and preamplifiers
- Laptop PC with interfaces and infinityPV LBIC software
- Economy +
- Economy Dual
- Economy White
- Industrial Dual / Quad
- Industrial R2R