SYSTEM SERIES: LumiSolar Cell
SYSTEM SERIES: LumiSolar Cell
Camera Familes
Camera Series
LumiSolarCell EL PL
Unique EL PL combined inspection system
The characterisation methods of the LumiSolarCell EL PL encompass both electroluminescence (EL) and photoluminescence (PL) techniques.
For EL, the methods include EL and reverse-biased EL imaging, which help assess the performance and integrity of the solar cells. Additionally, the measurement of the local cell voltage, mapping of the local current density, and optional evaluation of series resistance provide detailed insights into the electrical characteristics and efficiency of the cells.
In terms of PL, the methods involve PL imaging to visualize luminescent properties, biased PL to gain insights under different electrical conditions, and the mapping of minority carrier lifetime to measure the duration charge carriers exist before recombining. Together, these techniques over a comprehensive analysis of the solar cells’ performance and material properties.
There are two additional models of the LumiSolarCell EL PL system that over further characterisation methods:
- LumiSolarCell EL PL IR also provides Thermography (IR) and Lock-in Thermography (LIT).
- LumiSolarCell EL PL Rs enables Series resistance measurement.
Successfully tested on various Solar Cell types:
- Monocrystalline Silicon (mono-Si)
- Amorphous Silicon (a-Si)
- Copper Indium Gallium Selenide (CIGS)
- Heterojunction with Intrinsic Thin Layer (HIT)
- Polycrystalline Silicon (poly-Si)
- Copper Indium Sulfide (CIS)
- Cadmium Telluride (CdTe)
Inspection capabilities:
- Micro-cracks identification
- Dead cells
- Broken cells
- Inhomogeneities and impurities
- Local lifetime
- Shunt detection
- Finger defects
- Hotspots (EL PL IR model)
- Paste properties
Features & Benfits
- Combined EL/PL tool
In one compact table top system - Outstanding sensitivity and image quality
Enabling measurement of multiple PV technologies - Contactless characterisation
Non-destructive PL measurement - Award-winning system
Industry proven all over the globe - Innovative high-power LED light source
Compact and safe with no limiting safety
requirements compared to laser-based systems - Scalable set-up
In terms of intensity and supported cell sizes - Turnkey system
Featuring highly-sensitive scientific CCD camera
Applications
- Inspection of wafers, processed solar cells,
and thin film substrates - Research and Developmentthin-film, HIT, IBC
- Characterisation and Qualification
- Failure analysis
- Identification/sorting of wafers and cells
LumiSolarCell EL PL models
- Functionalities
EL PL
- Functionalities
EL, reverse-biased EL
PL, biased PL
EL PL IR
- Functionalities
EL, reverse-biased EL
PL, biased PL
Thermography
Dark lock-in Thermogrphy
EL PL Rs
- Functionalities
EL, reverse-biased EL
PL, biased PL
Series resistance measurement
EL PL
- Functionalities
EL, reverse-biased EL
PL, biased PL
EL PL IR
- Functionalities
EL, reverse-biased EL
PL, biased PL
Thermography
Dark lock-in Thermogrphy
EL PL Rs
- Functionalities
EL, reverse-biased EL
PL, biased PL
Series resistance measurement
Common Specifications
Image size
1024 x 1024 pixel 16-bit, or 2048 x 2048 pixel 16-bit
Image resolution
150 µm/pixel, or 80 µm/pixel
Substrate size
max. 200 mm x 200 mm
Typical exposure times
0.1 sec - 10 sec depending on the substrate and type of measurement
Power supply input
100-240V, 50/60 Hz
EL excitation source
Programmable power supply, 0-80V, 0.9.5A
PL light source
High-power LED array
Adjustable intensity - max. 1500W/m2 (>1 Sun)
Homogeneity >90%
EL contacting adapter
Adapter for 5 and 6 inch cells (156 mm x 156 mm) included
Flexible design for 2 - 5 bus bars
Vacuum contact adapters for IBC cells available as an option
Dimensions of housing
715 mm x 600 mm x 1120 mm
Weight
75 Kg
Request more information
greateyes GmbH
Ludwig-Boltzmann-Straße 3
12489 Berlin
Germany
