I-V Test Systems
I-V Test Systems by OAI
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Standard & Custom Test Fixtures
Both standard and custom Test Fixtures from OAI enable the user to integrate the solar cell with the I -V tester. Fixture configurations range from from simple hold down devices to temperature-controlled fixtures with front and back side contact. We invite you to contact an OAI Application Engineer for help with your fixture design. With our expert guidance, you can expect maximum performance from your I -V Tester and Solar Simulator.
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Stand-alone I-V Test Systems
OAI offers a complete line of high performance I -V Testers. I -V Testers and I -V Rider software may be ordered as a stand -alone system or integrated into any OAI Solar Simulator. Three standard ranges of I -V Testers are available; ≤1A, 1 -5A, 5 -10A, and 20A. Higher current testers are available as custom options. An OAI Application Engineer will work with you to insure that the I -V Tester and I -V Rider software you choose is optimized for your specific application.
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Automated I-V/AOI/EL and Sorting System
OAI’s High Performance In-line Automated-I-V Testing, AOI/EL Inspection and Sorting/Binning System for Various Si Solar Cells. The 10000A-I-V System is a unique and reliable I-V testing, AOI/EL Inspection and Sorting / Binning system for testing of Mono, Multi-Si, C-HJT and other full Size (156mm x 156mm) and/or Cut-cell (156mm x 39mm or 156mm x 31.2mm or other custom sizes) Si Solar Cells.
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Testing for Si Solar Cells Using High Performance CCD
EL Imaging Tester
EL Testing for Si Solar Cells using High Performance CCD. The determination of luminescence (photo emissions) in solar cells is an important characterization tool. Typical solar cells often have defects which limit the efficiency or lifetime of a cell. Many of these defects are visualized with Luminescence Imaging. By using this technique, the manufacturing process can be optimized to produce better cells. Luminescence Imaging takes advantage of the radiative inter-band recombination of excited charge carriers in solar cells. The emitted photons can be captured with a sensitive CCD camera to obtain an image of the distribution of the radiative recombination in the cell. This distribution is determined by the local excitation level, allowing the detection of electrical losses, thus mapping the diffusion length of minority carriers as the emitted light is low intensity and in the near infra-red range, the CCD camera has a high sensitivity wavelength from 900 to 1100 nm with little thermal noise. This CCD camera provides excellent resolution of 1024 x 1024 pixels with a large 1μm pixel size, multi-megahertz readout speed, and robust USB 2.0 connectivity. The EL CCD Camera is the ultimate high-performance CCD camera for electroluminescence and photoluminescence imaging for Photovoltaic (PV) Cells and Modules. This camera combines low noise electronics and optimal sensitivity in NIR.
