SLIDE 1
PVMD
Delft University of Technology
Learning objectives
- Improved light calibration
PVMD Delft University of Technology Learning objectives Improved - - PowerPoint PPT Presentation
PVMD Delft University of Technology Learning objectives Improved - - PowerPoint PPT Presentation
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
SLIDE 2
SLIDE 3
Learning objectives
- Improved light calibration
- Bias illumination and bias voltage
SLIDE 4
Learning objectives
- Improved light calibration
- Bias illumination and bias voltage
- Measurement procedure
SLIDE 5
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Reference diode Lock-in Amplifier Computer
SLIDE 6
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Reference diode Lock-in Amplifier Computer Solar cell
SLIDE 7
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Reference diode Lock-in Amplifier Computer Solar cell
SLIDE 8
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Reference diode Lock-in Amplifier Computer Solar cell
SLIDE 9
Multi-junction solar cells
Top cell Bottom cell
SLIDE 10
Multi-junction solar cells
Top cell Bottom cell
SLIDE 11
Multi-junction solar cells
Top cell Bottom cell
Probe light
I =0
SLIDE 12
Multi-junction solar cells
Top cell Bottom cell
Probe light
I
Bias light
SLIDE 13
Multi-junction solar cells
Top cell Bottom cell
Bias light
I
Probe light
SLIDE 14
Tandem solar cell: a-Si:H/µc-Si:H
Top cell Bottom cell
SLIDE 15
Tandem solar cell: a-Si:H/µc-Si:H
Top cell Bottom cell
SLIDE 16
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Lock-in Amplifier Computer Solar cell Reference diode Bias light
SLIDE 17
EQE testing setup
Chopper wheel Xenon lamp Mono- chromator Lock-in Amplifier Computer Reference diode Solar cell Bias light
SLIDE 18
Bias voltage
Top cell Bottom cell
Bias light
I
Probe light
JV curve Top cell
SLIDE 19
Bias voltage
Top cell Bottom cell
Bias light
I
Probe light
JV curve Top cell
SLIDE 20
Bias voltage
Top cell Bottom cell
Bias light
I
Probe light
JV curve Top cell
0 V
SLIDE 21
Bias voltage
JV curve
SLIDE 22
Bias voltage
JV curve
SLIDE 23
Bias voltage
JV curve
SLIDE 24
Bias voltage
JV curve
SLIDE 25
SLIDE 26
Summary
- Minimizing light source instabilities by alternating
measurement
SLIDE 27
Summary
- Minimizing light source instabilities by alternating
measurement
- Multi-junction cells with bias illumination and bias voltage
SLIDE 28
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