This system includes either a 150W Xenon or 250W QTH light, a monochromator to tune the light source, and the necessary probes to attach to your sample. 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.  This sensed current plus a reference signal at the frequency of the light modulation are both fed into the precision lock-in amplifier to allow measurement of the photocurrent generated by the modulated monochromatic light.

The PTS-1 features all the software required for I-V Curves and Spectral Response measurements. Main parameters of these measurements are displayed by the software, including the most important graphs typically required by researchers and the industry.  For the industry, our software development group offers to develop whatever is required to meet demand.
 
 The geometry of the light from the Monochromator is controlled to illuminate only a small section of the solar cell (typically 3mm diameter), ensuring that 100% of the monochromatic irradiance contributes to the output signal. NOTE: Spot size must be smaller than the 5mm diameter reference detector.
 
 The PTS-1 system includes a SCIRUNSR I-V-Test measurement system, precision lock-in amplifier and system software.  The software controls the Monochromator, source meter and lock-in amplifier to automatically measure the I-V characteristics and SR  versus  wavelength, plotting the result(s) on screen and outputting calculated results, including Voc, Isc, Pmax, Fill Factor, plus the raw measurements to a standard file format.
 
Additionally, the PTS-1 can be upgraded with optional light tight sample chamber, vertical adjustment components, sliding sample holder, and thermal control (either cooling or heating) for the sample holder. While these additions are not required for operation of the system, including them will ease your operation of the system.

Related Systems
Integrated Photovoltaic Testing System - Spectral Response
Integrated Photovoltaic Testing System – Quantum Efficiency
Integrated Photovoltaic Testing System – Constant Photocurrent Method
Integrated Photovoltaic Testing System – Steady State Photoconductivity