NEW: MBJ Sunlike Lab

  • Sun Simulator: 
    Sunlight-like LED light source with 32 different LED types and is designed for flash operation up to 500 ms and for continuous light operation.
  • Electroluminescence system:
    Switchable filters ensure that the electroluminescence of top and bottom solar cells of tandem modules can be measured separately.
  • Temperature chamber:
    Integrated climate chamber with a temperature range of 15°-75°C
  • Module Sizes:
    Solar modules up to 1.4 m x 2.6 m
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Technical details

LED Sun Simulator

  • Light source: 32 LEDs with UV and IR extended spectrum
  • Spectrum: < +/- 6.5%, Class A++ IEC60904-9 Ed.3
  • Long term instability (LTI): < +/- 0.5% (Class A++ IEC60904-9 Ed.3)
  • Non uniformity: < +/- 0.5% (Class A++ IEC60904-9 Ed.3)
  • Repeatability of Pmax, flash to flash: < 0.05 %
  • Accuracy Pmax: According to IEC 60891 Procedure 2
  • Spectral coverage (SPC): > 99,8 %
  • Spectral deviation (SPD): < 12 %
  • Configurable irradiance: 100-1,200 W/m²
  • Flash pulse duration: 500 ms long pulse
  • Steady state operation:
    1. Continuous light with 300 W/m² only in combination with the thermal unit.
    2. Continuous light with 1000 W/m² only with additional external cooling (reduced service life of LEDs)

Optional: EL / diode test / dark IV / Thermal chamber

  • Camera type for EL: 18 CMOS cameras
  • Filter: Automatic filter selection unit to acquire two EL images from tandem modules
  • Image acquisition time: ~ 5s (for a full panel image)
  • Diode test: Tests existence and function of the bypass diodes
  • Dark IV: Measurement of the dark current characteristic
  • Thermal chamber: 15° - 75°C
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Outstanding spectral properties

Sunlight-like spectrum

The MBJ Sunlike Lab boasts outstanding spectral properties. With its sunlight-like spectrum, it’s the perfect solution for the laboratory.

The new light source features 32 individually controllable LED types, achieving a spectral coverage (SPC) of nearly 100 % and a spectral deviation (SPD) of 
approximately 12 %.

The light source is water-cooled and can therefore be operated in both pulsed and continuous light mode.

The integrated temperature chamber, with a temperature range of 15–75°C, completes the system. Its compact dimensions of approximately 2.2 m x 3.4 m allow the system to fit into almost any laboratory.

 

Flash and continuous light operation in one system

The nearly sun-like spectrum reduces measurement effort in the laboratory to a minimum. This generally eliminates the need for spectral correction of the measured module compared to the reference.

This advantage is particularly noticeable in tandem solar modules. For perovskite-silicon-based solar modules, the Z-factor deviation is less than 1 %, eliminating the need for complex adjustment of the light spectrum to align the currents of the top and bottom cells.

The lab is designed for flash and continuous light operation. It’s easy to convert laboratory measurement methods to production measurement methods and to evaluate them in direct comparisons.
A powerful thermal unit for the measurement chamber and water cooling for the LEDs make this possible.

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Integrated EL System and self-explanatory software

The sun simulator features an integrated EL system with an automatic filter changer. By using appropriate filters, the spectral components of the top and bottom cells can be highly separated. 

The intuitive software makes operating the system easier than ever. Measurement sequences including heating, preconditioning, measuring and cooling can be easily configured with a mouse click using drag and drop.

 

 

Technological benefits

  • No spectral mismatch correction necessary
  • Applicable to tandem solar modules as not Z-factor related correction necessary in most cases
  • Steady state irradiation allows to include stabilization procedure in the measurement procedure.
  • Measurement of large standard modules up to 1,4 m x 2,5 m
  • Integrated EL system with extraordinary EL image resolution of 50 x 50 pixel/cm² (200µm/pixel) for top and bottom solar cell of a tandem solar module.
  • Comparison of steady state measurement method to flash method in one system possible. (Relevant for perovskite based solar modules)
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Available system size

MBJ Sunlike Lab
  • Illuminated area (W x L in mm): 1340 x 2600 mm
  • Maximum module size (W x L in mm): 1400 x 2600 mm
  • Module types: Framed and frameless glass-glass or glass-foil modules, bifacial solar modules, thin film
    modules (for thin film and bifacial modules special reference modules are recommend)
  • Cell technologies: mono-crystalline or multi-crystalline, PERC, HTJ, topcon and tandem