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Quantum Efficiency System

Photonics Spectra
Apr 2011
Sciencetech Inc.Request Info
 
A quantum efficiency system uses two light sources simultaneously to illuminate the solar cell being tested. Sciencetech Inc.’s SKU: SS-QE-150 quantum efficiency (QE) system comprises a 150-W tunable-wavelength monochromatic light source and a separate solar simulator for use as the white light bias. The light source is identical to the one used for the spectral response system, with a motorized optical chopper between the xenon light source and the scanning monochromator to modulate the light. A source meter used as an active load permits operating the test cell at various load conditions, including short-circuit, compensating for a series resistor required to sense the current produced by the modulated monochromatic light.


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Americascalibrated detectorenergyexternalinternallight sourceslock-in amplifiermonochromaticmonochromatic irradianceNew Productsoptical chopperQEquantum efficiencySciencetechSCIRUNQE I-V-TestSKU: SS-QE-150Softwaresolar cellsolar simulatorTest & Measurementtunable wavelengthwhite light biasXenon

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