PVMD Delft University of Technology Learning objectives Improved - PowerPoint PPT Presentation

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External Quantum Efficiency Ren van Swaaij PVMD Delft University of Technology Learning objectives Improved light calibration Learning objectives Improved light calibration Bias illumination and bias voltage Learning objectives

External Quantum Efficiency René van Swaaij PVMD Delft University of Technology
Learning objectives • Improved light calibration
Learning objectives • Improved light calibration • Bias illumination and bias voltage
Learning objectives • Improved light calibration • Bias illumination and bias voltage • Measurement procedure
EQE testing setup Reference diode Xenon lamp Mono- chromator Lock-in Amplifier Chopper wheel Computer
EQE testing setup Xenon lamp Solar Mono- cell chromator Reference diode Lock-in Amplifier Chopper wheel Computer
EQE testing setup Xenon lamp Solar Mono- cell chromator Reference diode Lock-in Amplifier Chopper wheel Computer
EQE testing setup Xenon lamp Solar Mono- cell chromator Reference diode Lock-in Amplifier Chopper wheel Computer
Multi-junction solar cells Top cell Bottom cell
Multi-junction solar cells Top cell Bottom cell
Multi-junction solar cells Probe light I =0 Top cell Bottom cell
Multi-junction solar cells Probe light Bias light I Top cell Bottom cell
Multi-junction solar cells Bias light Probe light I Top cell Bottom cell
Tandem solar cell: a-Si:H/µc-Si:H Top cell Bottom cell
Tandem solar cell: a-Si:H/µc-Si:H Top cell Bottom cell
EQE testing setup Bias light Xenon lamp Solar Mono- cell chromator Reference diode Lock-in Amplifier Chopper wheel Computer
EQE testing setup Bias light Xenon lamp Solar Mono- cell chromator Reference diode Lock-in Amplifier Chopper wheel Computer
Bias voltage JV curve Top cell Bias light Probe light I Top cell Bottom cell
Bias voltage JV curve Top cell Bias light Probe light I Top cell Bottom cell
Bias voltage JV curve Top cell Bias light Probe light I Top cell Bottom cell 0 V
Bias voltage JV curve
Bias voltage JV curve
Bias voltage JV curve
Bias voltage JV curve
Summary Minimizing light source instabilities by alternating • measurement
Summary Minimizing light source instabilities by alternating • measurement Multi-junction cells with bias illumination and bias voltage •
Summary Minimizing light source instabilities by alternating • measurement Multi-junction cells with bias illumination and bias voltage • Bias voltage used to determine electronic losses in the cell •

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