Our company has developed a testing system for the IV characteristics of solar cells, based on our AAA level solar simulator and in collaboration with the American Jishili 2400 and 2600 series source meters. Suitable for research, testing, and evaluation in various fields such as optoelectronic materials, optoelectronic devices, and solar cells. The testing system is equipped with multiple testing fixtures and platforms, which can measure various sizes and structures of silicon-based cells, dye-sensitized cells, perovskite cells, and other types of battery cells for research and testing.

Main testing functions

1. Measurement functions of curves and basic parameters under illumination conditions: complete I-V curve, complete P-V curve measurement function, short-circuit current (Isc), open circuit current (Voc), maximum power point voltage (Vm), maximum power point current (Im), maximum power value (Pmax), conversion efficiency (η), fill factor (FF), current density (Jsc), series resistance (Rs), parallel resistance (Rsh);
2. Dark current measurement function: I-V curve measurement under dark conditions, parallel resistance (Rsh);
3. Real time display function for standard battery light intensity calibration;
4. Multiple measurement function: The time interval between each measurement can be adjusted, and the I-V curve can be measured multiple times under light and dark conditions, and the curve can be overlaid and displayed. The basic parameters of solar cells are statistically analyzed, and the data is automatically sorted and saved;
5. Repetitive measurement: data is automatically saved, and basic parameters of solar cells are analyzed and calculated for standard deviation, mean, and deviation rate;
6. Measurement function of series resistance (Rs) under three light intensity;
7. Temperature coefficient measurement function: automatically saves data and calculates α (℃/A), β (℃/V), and γ (℃/W);
8. Reverse scanning I-V measurement function under light and dark conditions; At the same time, it can achieve multiple reverse scans, display curves overlaid, automatically save data, and calculate basic parameters of solar cells.
9. Automatically complete forward and reverse I-V bidirectional scanning function under light and dark conditions, and display curve overlay, automatically save data, and calculate basic parameters of solar cells.

Technical parameters:

• Complete I-V curve measurement; Complete P-V curve measurement;
• Measurement of short-circuit current Isc; Measurement of open circuit voltage Voc;
• Measurement of short-circuit current density Jsc; Peak power Pmax measurement;
• Peak power current Imp measurement; Peak power voltage Vmp measurement;
• Efficiency measurement; Fill factor FF measurement;
• Measurement of series resistance Rs; Measurement of parallel resistance Rsh;
• Measurement of light intensity mW/cm2; Cell temperature measurement;

Main features:
user-friendly design
*The interface is simple and easy to operate
*Automatic saving of test data
*Automatic test report generation
*2-wire method and 4-wire method for testing functionality
*Test speed options (fast, medium, normal, and high-precision)
*Software automatically controls the optical shutter and conducts testing; At the same time, the time difference between the opening of the optical shutter and the start of the test can be set
*Data saving formats are optional (TXT, EXCEL, RTF, and JPG screenshots)
*Customization of testing functions according to customer requirements

Main configuration:
AAA level solar simulator (irradiation area 50mm * 50mm, 100mm * 100mm, 200mm * 200mm optional)
Keithley 2400 series source table and 2600 series source table from the United States
Professional IV testing software
Solar cell testing fixture
4-probe test bench (temperature control optional)
Integrated multi-channel testing fixture (for upper light receiving surface and back electrode samples)
Split type multi-channel testing fixture (generally used for lower light receiving surface and back electrode samples)
Probe array testing fixture
Standard solar cells
Imported standard solar cells
National Institute of Metrology Standard Solar Cells

Partial accessory parameters:
AAA level solar simulator

model	SS-50A	SS-100A	SS-156A	SS-180A	SS-200A
Spot size	50*50mm 2inch×2inch	100*100mm 4inch×4inch	156*156mm 6inch×6inch	180*180mm 7inch×7inch	200*200mm 8inch×8inch
Xenon lamp power	150W	300W	1000W	1000W	1000W
Illuminating surface radiance	0.7~1.5 Sun 0.2~1.5 Sun (optional)	0.7~1.2 Sun 0.2~1.2Sun (optional)	0.7~1.2 Sun	0.7~1.2 Sun	0.7~1.2 Sun
Quasi right angle	<±4°	<±4°	<±4°	<±4°	<±4°
Light output direction	Horizontal and vertical	Horizontal and vertical	vertical	vertical	vertical
work distance	About 150mm	About 300mm	About 400mm	About 400mm	About 400mm
Cooling method	forced air cooling	Forced air cooling	Forced air cooling	Forced air cooling	Forced air cooling
Shutter Control	Manual and automatic control	Manual and automatic control	Manual and automatic control	Manual and automatic control	Manual and automatic control

American Jishili Source Table


Solar cell testing fixture





Standard solar cells