Superior Evaporants Incorporated

Technical Information

Material:  Zinc Sulfide

 

 

Formula: ZnS

Molecular weight: 97.43

Product Form: White/yellow granules 2.5‑5mm

Catalog#:  3500

 

Other: Crushed from Single Crystal

Solubility: soluble in acids

Melting point: sublimes

Density: ~ 3.98 g/cm3

 

 

Type analysis:

Iron(Fe)          < 8 ppm

Nickel(Ni)        < 3 ppm

Cobalt(Co)        < 4 ppm

Copper(Cu)        < 3 ppm

Chromium(Cr)      < 5 ppm  

Mangenese(Mn)     < 1 ppm

Titanium(Ti)      <13 ppm

              Potasium(K)       < 1 ppm

              Sodium(Na)        < 9 ppm

              Lead(Pb)          < 6 ppm

            

Properties of thin film:

 

Transmission range: 400‑15000nm

Refractive index at 600nm ~ 2.3

Refractive index at 10600nm ~ 2.2

Evaporation temperature: ~ 1100oC

 

Hints on evaporation:

 

Evaporate using E‑Beam or resistance heated molybdenum boat.

Substrate temperature: 150oC

Base pressure: > 1 x 10‑5 mbarr

Deposition rate: 60 nm/min

 

Applications:

 

IR Anti‑reflection coatings, Interference filters, multilayers