High power spectrometer for the characterization of photovoltaic cells in a controlled atmosphere or vacuum

Frederik C Krebs, M. Jørgensen

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The complete description of a high power spectrometer, allowing for large area illumination of up to 10 cm(2) in the wavelength range 200-800 nm with average power densities of 2 mW cm(2), is provided. The setup employs a stationary 150 W xenon lamp used in conjunction with a simple stationary single monochromator grating. The photovoltaic sample under test is placed in a stainless-steel vacuum chamber allowing for operating pressures down to 10(-6) mbar equipped with a quartz window and electrical connections. The entire vacuum chamber was placed on a moving arm allowing for positioning in a selected part of the diffracted beam of the monochromator. The typical spectral resolution was 12 nm cm(-1) which gave bandwidths of 25 nm with a 2 cm sample width. The electrical characteristics of the photovoltaic device under test was measured using a source meter giving an experimental current sensitivity of 10 pA. We finally demonstrate the application of the instrumental setup for the characterization of a polymer based photovoltaic. (C) 2003 American Institute of Physics.
    Original languageEnglish
    JournalReview of Scientific Instruments
    Volume74
    Issue number7
    Pages (from-to)3438-3441
    ISSN0034-6748
    DOIs
    Publication statusPublished - 2003

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