Abstract
WE have noted with interest Mr. Guild's observations on this effect, as recorded in NATURE of March 4. In reply to his query, the values given for the relative sensitivities were for an “equal energy spectrum”, being obtained by direct comparison with a Moll vacuum thermopile for the different spectrum regions. Any other method of presentation would obviously be valueless, as the energy flux reaching the cell increased rapidly with the wave-length. The maximum reverse current obtained from the marginal regions of the cell was no less than 28.5 per cent of the maximum direct current obtained for the same regions.
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References
C. R. Acad. Sci. Paris, 193, 320; 1931.
Loc. cit., 193, 659; 1931.
Loc. cit., 194, 1332; 1932.
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POOLE, H., ATKINS, W. Reversal of Current in Rectifier Photo-Cells. Nature 131, 547–548 (1933). https://doi.org/10.1038/131547b0
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DOI: https://doi.org/10.1038/131547b0
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