The spectral response of the open-circuit voltage: A new characterization tool for solar cells

Helmut Mäckel*, Andrés Cuevas

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    This paper explores the possibility of measuring the open-circuit voltage of a solar cell as a function of wavelength as a tool for device characterization. Theoretical calculations and computer simulations show that the spectral response of the open-circuit voltage exhibits a similar dependence to the spectral response of the short-circuit current. Experimental studies on silicon solar cells confirmed the strong spectral dependence of the open-circuit voltage. The spectral measurements have been performed using a quasi-steady-state open-circuit voltage method, which also allows to determine the spectral response of the maximum power voltage. The advantages of this new technique over conventional spectral response measurements include its applicability directly after junction formation and the simplicity of the experimental apparatus.

    Original languageEnglish
    Pages (from-to)225-237
    Number of pages13
    JournalSolar Energy Materials and Solar Cells
    Volume81
    Issue number2
    DOIs
    Publication statusPublished - 6 Feb 2004

    Fingerprint

    Dive into the research topics of 'The spectral response of the open-circuit voltage: A new characterization tool for solar cells'. Together they form a unique fingerprint.

    Cite this