The Budget-Priced PL System described appears to be a cost-effective solution for photoluminescence (PL) imaging, designed to offer high-resolution contactless testing of wafers and solar cells.
PL Wafer and Cell Tester
- 1-4 Photoluminescence Light Sources
- Power Supply for Light Sources or EL biasing
- EL-PL Camera with Filters
- PL for Samples up to 25cm x 25cm
- EL chuck for cells with up to 9 busbars
- Lightproof Enclosure
- Switch box to go between forward bias EL (normal), reverse bias EL (shunting), and PL lamps
- Laptop with Average and Stdev Analysis Software
- Good correlation to iVoc
Photoluminescence Light Source
- Visible LED Light Source – No Safety Risk from IR Lasers
- Filtered to Remove IR “Noise”
- Variable Intensity up to 1/3 Sun
Potential Applications:
- Solar Cell Testing: Identify defects in solar cells, measure material efficiency, and check for inconsistencies in performance.
- Semiconductor Research: Analyze the quality and properties of semiconductor wafers and devices under photoluminescence.
- Solar Module Inspection: Evaluate individual cells within solar panels to identify issues with specific cells or connections, improving quality control in manufacturing.
- Material Science: Study photoluminescent materials and their applications in optoelectronic devices, sensors, and other advanced technologies.
- Quality Control: Integrate into production lines for rapid, non-destructive testing of materials and devices.