PVMD Delft University of Technology Learning objectives - PowerPoint PPT Presentation

Reflectance and Transmittance measurements René van Swaaij PVMD Delft University of Technology

Learning objectives • Characterising optical properties

Learning objectives • Characterising optical properties • Typical measurement setup

Learning objectives • Characterising optical properties • Typical measurement setup • Integrating sphere setup

Optical characterisation Solar cell

Optical characterisation R Solar cell

Optical characterisation R Solar cell

Optical characterisation R A Solar cell

Optical characterisation R A T Solar cell

Optical characterisation R A T Solar cell

Optical characterisation Metal back contact R A Solar cell

Measurement setup Many optical elements! • Source figure: PerkinElmer 2017

Measurement setup Many optical elements! • Tungsten-halogen and • Deuterium lamp 175 – 3300 nm range • Source figure: PerkinElmer 2017

Measurement setup Many optical elements! • Tungsten-halogen and • Deuterium lamp 175 – 3300 nm range • Precise monochromator • Source figure: PerkinElmer 2017

Reflectance setup Integrating sphere • Detectors Sample Sample beam Reference

Reflectance setup Integrating sphere • Spectralon • Detectors Sample Sample beam Reference Source figure: labsphere 2017

Reflectance setup Integrating sphere • Spectralon • Two detectors • Detectors Sample Sample beam Reference

Reflectance setup Integrating sphere • Spectralon • Two detectors • Port plug • Sample Sample beam Port plug Reference

Reflectance setup Integrating sphere • Spectralon • Two detectors • Port plug • Sample Sample beam Port plug Reference

Reflectance setup Integrating sphere • Spectralon • Two detectors • Port plug • Sample Sample Sample at an angle • beam Port plug Reference

Reflectance setup Reference Integrating sphere • beam Spectralon • Two detectors • Port plug • Sample Sample Sample at an angle • beam Reference beam • Port plug Reference

IQE and spectral reflectance Courtesy: G. Yang

IQE and spectral reflectance 100 80 Reflectance [%] 60 40 20 0 Courtesy: G. Yang

IQE and spectral reflectance 100 80 Reflectance [%] 60 40 20 0 Courtesy: G. Yang

IQE and spectral reflectance 100 80 Reflectance [%] 60 40 20 0 Courtesy: G. Yang

IQE and spectral reflectance 100 80 , IQE Reflectance [%] 60 40 20 0 Courtesy: G. Yang

IQE and spectral reflectance 100 80 , IQE Reflectance [%] 60 40 20 0 Courtesy: G. Yang

Transmittance setup Sample placed at beam • opening Sample Sample beam Reference

Transmittance setup Sample placed at beam • opening Spectralon Sample Spectralon at reflectance • port Sample beam Reference

Transmittance setup Reference Sample placed at beam • beam opening Sample Spectralon at reflectance • port Sample beam Reference beam • Reference

Summary Reflectance and transmittance are measured, absorptance is • calculated

Summary Reflectance and transmittance are measured, absorptance is • calculated Reflectance spectrum used to obtain IQE •

Summary Reflectance and transmittance are measured, absorptance is • calculated Reflectance spectrum used to obtain IQE • Integrating sphere with Spectralon as perfect scattering • material