Spectral Response /
Quantum Efficiency / IPCE Measurement Systems
These
systems can measure a wide variety of photovoltaic devices,
including p-n junction and dye-nanocrystalline solar cells
(DSSCs).

All systems include a light source, monochromator,
filters, and reflective optics provide monochromatic light to a
photovoltaic device while a broadband bias light illuminates the
test device to simulate end-use conditions. A computer interfaces
with the monochromator, signal conditioning equipment, and
digital signal processing equipment; interprets signals;
maintains calibration information; saves test data; and produces
test reports. Different models include different features and can
be configured with different options.
Basic System Features
Dual
grating monochromator with computer control
Filter
wheel with order-sorting and stray light attenuation filters
Calibrated
reference photodiode
Line
filter for wavelength calibration verification
White
bias light source
Simultaneous
measurement of device response and light intensity
Easy-to-use
graphical user interface
Computer,
LCD monitor, keyboard, and color printer
300-1100 nm (Model QEX7) or 360-1100
nm (Model QEW7) wavelength range
Monochromatic
light spectral bandwidth approximately 5 nm (user changeable)
Selectable
wavelength interval (default 5 nm)
Calculates
Jsc estimate using reference spectrum
Instruction
manual
Options
Setup
and training at customer site
Reflectance and IQE
measurement capability (Model QEX7)
1100-1400
nm wavelength range extension
Test
fixture and contacting mechanism designed to meet your
requirements
Temperature
control for the test fixture
Multi-junction device
measurement capability
Other options are available; please
contact us to discuss your
requirements. Please note that customized systems are designed to
meet your needs. Individual systems vary in appearance,
components, and features.
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