From this contrast test, we saw the Ultraviolet radiation can do obvious influence on the surfaces. Due to this unique properties, we suggest that customers should keep this crystal away from UV light before coating. If inspection is necessary, please use an optical filter to filter out the UV light from the light sources.
Exposed under nature light for several days’ AgGaSe2 surface quality seen by 100 times magnifying equipment.
e.g. AgGaSe2 crystal’s surface quality damaged:
A series experiment turns out a short time expose under inspection light the surface become shadow and scratched. And the results of these phenomenons may become observable in hours or days.
