OU NanoLab/NSF NUE/Bumm & Johnson
Applying Thin Films
The dielectric layer should cover all of the phosphor layer and be as thin as possible
without risking a short in the capacitor.
The silver layer must
touch the ITO.
Parts of the ITO layer are removed in order
to extend the silver layer to the edge of the glass.
This makes it easier to connect the
lamp to a power source.
The black lines mark the etched ITO pattern, and are used to accurately place the scotch tape; they’re later removed with acetone.
Silver Layer (Rear Electrode)
Cross-section of TFEL display
The thin films must be applied to the
substrate within defined boundaries to avoid
shorting the capacitor.
The phosphor layer should be as thin as