Print Email Facebook Twitter Artifact Interpretation of Spectral Response Measurements on Two-Terminal Multijunction Solar Cells Title Artifact Interpretation of Spectral Response Measurements on Two-Terminal Multijunction Solar Cells Author Si, F.T. (TU Delft Photovoltaic Materials and Devices) Isabella, O. (TU Delft Photovoltaic Materials and Devices) Zeman, M. (TU Delft Electrical Sustainable Energy) Department Electrical Sustainable Energy Date 2016-11-17 Abstract Multijunction solar cells promise higher power-conversion efficiency than the single-junction. With respect to two-terminal devices, an accurate measurement of the spectral response requires a delicate adjustment of the light- and voltage-biasing; otherwise it can result in artifacts in the data and thus misinterpretation of the cell properties. In this paper, the formation of measurement artifacts is analyzed by modeling the measurement process, that is, how the current–voltage characteristics of the component subcells evolve with the photoresponse to the incident spectrum. This enables the examination on the operation conditions of the subcells, offering additional information for the study of artifacts. In particular, the influence of shunt resistance, bias-light intensity, and bias voltage on the measurement is examined. Having observed the dynamics and vulnerability of the measurement, the proper ways to configure and interpret a measurement are discussed in depth. As a practical example, simulations of the measurements on a quadruple-junction thin-film silicon solar cell demonstrate that the modeling can be used to interpret eventual irregularities in the measured spectral response. The application of such tool is especially meaningful taking account of the diverse and rapid development of novel hybrid multijunction solar cells, in which the role of reliable characterizations is essential. Subject measurement artifactsmultijunction solar cellsphotovoltaic devicesquantum efficiencyspectral response measurements To reference this document use: http://resolver.tudelft.nl/uuid:a0a06b84-c562-4aa9-a934-575a2bf7272e DOI https://doi.org/10.1002/aenm.201601930 ISSN 1614-6832 Source Advanced Energy Materials, 7 (6), 1-14 Part of collection Institutional Repository Document type journal article Rights © 2016 F.T. Si, O. Isabella, M. Zeman Files PDF Si_et_al_2016_Advanced_En ... erials.pdf 622.8 KB Close viewer /islandora/object/uuid:a0a06b84-c562-4aa9-a934-575a2bf7272e/datastream/OBJ/view