Research paperExperimental CharacterizationComputational Kinetic ModelTheoreticalSpectral effects on the energy harvesting efficiency of 2- and 4-terminal tandem photovoltaicsRobert Witteck, John F. Geisz, Emily L. Warren, William E. McMahonarXiv preprint·2023·10.1002/solr.202300782·arXiv:2310.06914AbstractThis work investigates how spectral irradiance and top-cell bandgap affect the annual energy-harvesting efficiency of 2-terminal and 4-terminal tandem photovoltaic devices under outdoor operating conditions. The authors validate an optoelectronic model using a year-long outdoor data set from a 4T mechanical stacked GaAs/Si tandem device, then simulate perovskite//Si tandems with varying perovskite bandgaps for Golden, Colorado. The study introduces a spectral binning method and shows that current-matched tandems suffer only modest spectral losses, while mismatched bandgaps reduce the annual energy-harvesting efficiency of 2T devices more strongly.Read more
Perovskite solar cell with stoichiometry yielding a 1.58 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.63 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.68 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.70 eV bandgap; used as the current-matched top cell in the tandem analysis.3 characterizations5 properties1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.75 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.80 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Crystalline silicon bottom cell (poly-Si on oxide interdigitated back contact, POLO-IBC Si) characterized for tandem modeling.3 characterizations4 properties1 figureExperimentalSiStudied MaterialExpand
4-terminal mechanically stacked GaAs on crystalline Si tandem device used as the validation benchmark.No measurements recordedReferenceGaAsStudied MaterialSiStudied MaterialExpand
Research paperExperimental CharacterizationComputational Kinetic ModelTheoreticalSpectral effects on the energy harvesting efficiency of 2- and 4-terminal tandem photovoltaicsRobert Witteck, John F. Geisz, Emily L. Warren, William E. McMahonarXiv preprint·2023·10.1002/solr.202300782·arXiv:2310.06914AbstractThis work investigates how spectral irradiance and top-cell bandgap affect the annual energy-harvesting efficiency of 2-terminal and 4-terminal tandem photovoltaic devices under outdoor operating conditions. The authors validate an optoelectronic model using a year-long outdoor data set from a 4T mechanical stacked GaAs/Si tandem device, then simulate perovskite//Si tandems with varying perovskite bandgaps for Golden, Colorado. The study introduces a spectral binning method and shows that current-matched tandems suffer only modest spectral losses, while mismatched bandgaps reduce the annual energy-harvesting efficiency of 2T devices more strongly.Read more
Perovskite solar cell with stoichiometry yielding a 1.58 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.63 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.68 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.70 eV bandgap; used as the current-matched top cell in the tandem analysis.3 characterizations5 properties1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.75 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.80 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Crystalline silicon bottom cell (poly-Si on oxide interdigitated back contact, POLO-IBC Si) characterized for tandem modeling.3 characterizations4 properties1 figureExperimentalSiStudied MaterialExpand
4-terminal mechanically stacked GaAs on crystalline Si tandem device used as the validation benchmark.No measurements recordedReferenceGaAsStudied MaterialSiStudied MaterialExpand
Research paperExperimental CharacterizationComputational Kinetic ModelTheoreticalSpectral effects on the energy harvesting efficiency of 2- and 4-terminal tandem photovoltaicsRobert Witteck, John F. Geisz, Emily L. Warren, William E. McMahonarXiv preprint·2023·10.1002/solr.202300782·arXiv:2310.06914AbstractThis work investigates how spectral irradiance and top-cell bandgap affect the annual energy-harvesting efficiency of 2-terminal and 4-terminal tandem photovoltaic devices under outdoor operating conditions. The authors validate an optoelectronic model using a year-long outdoor data set from a 4T mechanical stacked GaAs/Si tandem device, then simulate perovskite//Si tandems with varying perovskite bandgaps for Golden, Colorado. The study introduces a spectral binning method and shows that current-matched tandems suffer only modest spectral losses, while mismatched bandgaps reduce the annual energy-harvesting efficiency of 2T devices more strongly.Read more
Perovskite solar cell with stoichiometry yielding a 1.58 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.63 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.68 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.70 eV bandgap; used as the current-matched top cell in the tandem analysis.3 characterizations5 properties1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.75 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.80 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Crystalline silicon bottom cell (poly-Si on oxide interdigitated back contact, POLO-IBC Si) characterized for tandem modeling.3 characterizations4 properties1 figureExperimentalSiStudied MaterialExpand
4-terminal mechanically stacked GaAs on crystalline Si tandem device used as the validation benchmark.No measurements recordedReferenceGaAsStudied MaterialSiStudied MaterialExpand
Research paperExperimental CharacterizationComputational Kinetic ModelTheoreticalSpectral effects on the energy harvesting efficiency of 2- and 4-terminal tandem photovoltaicsRobert Witteck, John F. Geisz, Emily L. Warren, William E. McMahonarXiv preprint·2023·10.1002/solr.202300782·arXiv:2310.06914AbstractThis work investigates how spectral irradiance and top-cell bandgap affect the annual energy-harvesting efficiency of 2-terminal and 4-terminal tandem photovoltaic devices under outdoor operating conditions. The authors validate an optoelectronic model using a year-long outdoor data set from a 4T mechanical stacked GaAs/Si tandem device, then simulate perovskite//Si tandems with varying perovskite bandgaps for Golden, Colorado. The study introduces a spectral binning method and shows that current-matched tandems suffer only modest spectral losses, while mismatched bandgaps reduce the annual energy-harvesting efficiency of 2T devices more strongly.Read more
Perovskite solar cell with stoichiometry yielding a 1.58 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.63 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.68 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.70 eV bandgap; used as the current-matched top cell in the tandem analysis.3 characterizations5 properties1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.75 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Perovskite solar cell with stoichiometry yielding a 1.80 eV bandgap.3 characterizations1 property1 figureExperimentalPerovskite solar cell absorberStudied MaterialExpand
Crystalline silicon bottom cell (poly-Si on oxide interdigitated back contact, POLO-IBC Si) characterized for tandem modeling.3 characterizations4 properties1 figureExperimentalSiStudied MaterialExpand
4-terminal mechanically stacked GaAs on crystalline Si tandem device used as the validation benchmark.No measurements recordedReferenceGaAsStudied MaterialSiStudied MaterialExpand