Solar Cell Spectral Response/QE/IPCE Measurement System0 pages

Solar Cell

Scan 100

150W Xenon arc lamp for probe source, optical stability ^0.8%. Adjustable frequency

optical chopper with control for insertion into or removal from optical path

2. Probe light beam delivery: beam size is 3-10mm

3. Motorized control monochromator with triple-grating turret

4. Monochromatic light wavelength range : 300 - 2000 nm, with three gratings

5. Motorised filter wheel with order-sorting filters

6. Calibrated reference Si photodiode

7. Rack-mount computer with Microsoft Windows OS®

8. Wavelength accuracy :

a) +0 3nm- 1200a/mm blaze 300nm Mst aratina')

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b) ± 0.6nm; 600g/mm, blaze 500nm (2nd grating)

9. <5 nm spectral bandwidth monochromatic light

10. Monochromatic light modulation: 4 - 400 Hz (adjustable)

11. Quantum Efficiency DC (DCS300PA) / AC (SR830) mode measurement

12. AC mode utilises the bias light source, optical chopper and lock-in amplifier detection

13. DC mode utilises a pre-amp with data acquisition system, DCS300PA, with dual

channel inputs (sensitivity 100nA), and 16 bit analoque to diqital converter

14. Test fixture : 156mm x156mm

15. Single Spectral Response Scan less than 1 minute,

IPCE measurement less than 5 minute (@ 5nm step from 300nm -1000nm)

16. Automatic operation, calibration and test report generation

QE-A1

150W Xenon Bias Liaht Source

White bias light source, optical stability ^0.8%

Bias light filter holders for multi-junction measurement

QE-C1

Specular reflective measurement capability, Si detector 300-1100nm

QE-C2

Integrating sphere diffuse reflectance measurement capability, Dual detector 300nm

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QE-F1

Vacuum sample clamp test fixture, 156mm x156mm

QE-F2

Thermoelectric temperature control @ 25 °C for QE-F1

QE-F3

30x30mm Thermoelectric control sample holder temperature Control 5-40 °C