Abstract
FOLLOWING the successful development1,2 of lead selenide photoconductive cells for the detection of infra-red radiation, we have now extended this work to lead telluride. It was known from very incomplete information that experimental cells of this material were made in Germany during the War3 and showed some response as far as 5·8 µ, that is, considerably farther than lead selenide. However, no information was available to us on the method of preparation, nor on their performance, and it may be presumed that the absolute sensitivity was poor, in view of the widespread use in Germany of the lead sulphide cell in spite of its restriction to wave-lengths shorter than 3 µ.
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References
Simpson, O., Nature, 160, 791 (1947).
Blackwell, D. E., Simpson, O., and Sutherland, G. B. B. M., Nature, 160, 793 (1947).
Elliott, A., in "Electronics" (Edited by Lovell. Pilot Press, 1947).
Sutherland, G. B. B. M., Blackwell, D. E., and Fellgett, P. B., Nature, 158, 872 (1946).
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SIMPSON, O., SUTHERLAND, G. & BLACKWELL, D. Lead Telluride Cells for Infra-Red Spectroscopy. Nature 161, 281 (1948). https://doi.org/10.1038/161281a0
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DOI: https://doi.org/10.1038/161281a0
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