In this work we describe a methodology to obtain phosphor screens used in various applications to produce images or patterns such as detectors and microscopes. The main advantages of these screens are the particle free and self-heating properties that allows it to be used in controlled environments minimizing the adsorbed gases in the surface of the screen. A polyvinyl alcohol deposited on top of the phosphor layer acts as an adhesive layer preventing the removal of phosphor particles from the screen surface that could result in measurement environment contamination. The tin oxide layer has a high melting point enabling the self-heating. These characteristics on screens are important for ultra-high vacuum environment and to study carbon nanotube emission patterns through field emission microscopy (FEM).

Shadow masks are used in manufacturing processes for electro-optic devices to transfer patterns with different shapes and dimensions. For fabrication of organic based devices, shadow masks should be made of materials stable against organic solvents, high temperature, and robust, remaining unchanged after multiple cycles of use and fixation. Thus, stainless steel is suitable for shadow masks. A simple, cheap and quick method of obtaining shadow masks by electrochemical corrosion of stainless steel is reported. The shadow mask was used to evaporate cathode material to obtain an organic light emitting diode with active area of 9 mm². This device exhibited a turn-on voltage of 5 V and luminance of 14 cd/m².