Photoacoustic determination of photovoltaic energy conversion efficiency

David Cahen

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


Photoacoustic (i.e., photocalorimetric) measurements on photovoltaic devices can directly yield their energy conversion efficiency. This is illustrated for a Si solar cell, for which case excellent agreement is found with normal electrical measurements. In addition, the photoacoustic spectra under load and at open-circuit conditions are reported and compared with the cell's spectral response. Together, such measurements can provide information on the wavelength dependence of the cell performance as well.

Original languageEnglish
Pages (from-to)810-811
Number of pages2
JournalApplied Physics Letters
Issue number9
StatePublished - 1978
Externally publishedYes


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