Injected current-related distortion of photothermal signals from a photovoltaic cell

David Cahen, Per Erik Nordal, Svein Otto Kanstad

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

When power dissipation in a photovoltaic cell is measured as a function of load resistance via photothermal techniques which sense only part of the photovoltaic cell, significant deviations from previously reported photoacoustic measurements can be obtained. These deviations occur under nonuniform illumination. They are due to the fact that, under these experimental conditions, the measured signal is proportional to only part of the power dissipation by injected carriers, while all of the photogenerated carriers contribute to the signal. Results from photothermal radiometry experiments are presented and explained in this way.

Original languageEnglish
Pages (from-to)1351-1353
Number of pages3
JournalApplied Physics Letters
Volume49
Issue number20
DOIs
StatePublished - 1986
Externally publishedYes

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