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barrier-layer cell definition

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a photoelectric detector which is made of iron coated with a semiconductor film;  when light from 250-750nm hits this cell, you get a current;  this is a cell which is mainly good for intense light sources, because there is not a huge signal enhancement.

See also:

bar code definition
Basic Anhydride definition
Biological half life definition
bathochromic shift definition
Bioleaching definition