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Some optical and photoelectrical properties of molybdenite

✍ Scribed by W.W. Coblentz; H. Kahler


Publisher
Elsevier Science
Year
1919
Tongue
English
Weight
60 KB
Volume
188
Category
Article
ISSN
0016-0032

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✦ Synopsis


THIS paper gives data on the transmissivity and the reflectivity of molybdenite ; also data upon its change in electrical conductivity, when exposed to thermal radiations of wave-lengths extending from the ultra-violet into the extreme infra-red.

The effect of temperature, humidity, intensity of the exciting light, etc., upon the photoelectrical sensitivity of molybdenite was investigated.

It was found that:

( I ) Samples of molybdenite, obtained from various localities, differ greatly in sensitivity.


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## Abstract The reflection spectra of PbS, PbSe, and PbTe have been measured in the 14 to 26 eV region using as a source the DESY‐synchrotron. Three peaks are observed for PbSe and PbTe and two for PbS, corresponding to transitions from the outermost d‐levels of the Pb core to the conduction bands.