--_Illustrirte Zeitung_.
* * * * *
ON THE FRITTS SELENIUM CELLS AND BATTERIES.
[Footnote: Paper read before the American Association for the Advancement
of Science, at Philadelphia, Sept, 5, 1884.]
By C.E. FRITTS, 42 Nassau St., New York, N.Y.
In all previous cells, so far as I am aware, the two portions or parts of
the selenium at which the current enters and leaves it have been in
substantially the same electrical state or condition. Furthermore, the
paths of the current and of the light have been transverse to each other,
so that the two forces partially neutralize each other in their action
upon the selenium. Lastly, the current flows through not only the surface
layer, which is acted upon by the light, but also the portion which is
underneath, and not affected thereby, and which therefore detracts from
the actual effect of the light upon the selenium at the surface.
My form of cell is a radical departure from all previous methods of
employing selenium, in all of these respects. In the first place, I form
the selenium in very thin plates, and polarize them, so that the
opposite faces have different electrical states or properties.
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