Spi-Cell Tester?0 pages

Spi-Cell Tester™
One-Sun Solar Cell Tester

T

he Spi-Cell Tester™ tests the electrical performance of photovoltaic
cells under simulated sunlight. A xenon arc lamp with an optical filter
provides a close match to the Air Mass 1.5 Global (AM1.5G) solar spectrum.
The Spi-Cell Tester measures current-voltage (I-V) characteristics of cells with
dimensions up to 156 mm x 156 mm at 1 sun intensity. Its high resolution also
permits testing of very small area devices. Separate current and voltage probes on
the top and bottom of the cell permit four-point (Kelvin) I-V measurements. A
calibrated monitor cell is located on the test plane to monitor the light intensity.
A computer with user friendly software adjusts the lamp intensity, controls the
measurement process, and acquires cell performance data. A programmable
electronic load varies the resistance across the cell to measure its I-V
characteristics. The computer plots the I-V curve and displays a variety of
cell characteristics. Curves and data can be printed and stored on disk.

Measures one-sun cells
Probes and temperature controlled vacuum chuck (with optional
third bus bar contact)

F E AT U R E S A N D B E N E F I T S
Measures and displays the following cell parameters:
- Complete I-V curve - Open circuit voltage, Voc - Short-circuit current, Isc - Cell temperature, °C
- Peak power, Pmax
- Cell efficiency, η
- Fill factor, FF
- Series resistance, Rs
- Shunt resistance, Rsh
Illumination uniformity within ±2% at 1 sun
Xenon light source filtered to Class A spectrum (AM1.5G) for intensities from 70 to 110 mW/cm²
Calibrated monitor cell traceable to NREL
Four point probe (Kelvin) for accurate measurements
Temperature controlled vacuum chuck using a closed loop water chiller
Computer system and software package for operation, measurements, data analysis, printed output, and disk storage

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©2014 Spire Corporation. All rights reserved. Specifications are subject to change without notice.

Rev H 6/14