Silicon Oxides for optical coatings

Silicon Dioxide 

SiO2, known as silica, is a chemical compound that can be found in the nature as sand or quartz.

Silicon Dioxide

Silicon Dioxide Specifications

 Characteristics of Silicon Dioxide

Evaporation technique of Silicon Dioxide (SiO2)

Electron beam evaporation works well for optical SiO2 because of its refractive index and it is evaporated from a graphite or tantalum crucible liner. Films result to be smooth and amorphous with good adhesion.

Silicon Monoxide (SiO) 

Silicon Monoxide (SiO) is an amorphous solid, available in many forms. It is a highly desirable coating material due to its high deposition rate and ease of evaporation using low cost resistance-heated coating systems.

Specifications of Silicon Monoxide

Characteristics of Silicon Monoxide

Silicon Monoxide Evaporation technique

Resistance heating in baffle boats is the most common evaporation method used, but electron beam evaporation may also be used, particularly with tablets.

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