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Vapor Sources
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ALVASOURCES® for Photocathodes, OLEDs and Bose Einstein Condensation         back to products

Alvatec produces alkali vapor sources (ALVASOURCES®) based on stable intermetallic compounds containing the desired alkali metal or earth alkali metal, respectively. The active material is in a protectively sealed stainless steel housing which makes it chemically stable under ambient air. When installed in the application the sealing melts during the thermal activation process and the pure alkali metal is released by heating in a vacuum chamber and can be controlled by the heating current. Alvasources generate ultra pure metal vapor in a very controllable manner. They are delivered in various sizes, they are absolutely chromatefree. Their intrinsic properties such as absorbing residual gases or forming pure active metal coatings can be perfectly used for OLED production, for photo cathodes, for night goggling devices as well as for nano-layer getters. Patents granted.
 
Li, Na, K, K40, Rb, Cs, Ca, Sr, Ba and other metals 
       
 
    
 
 
Product Advantages
  • Chromate-free alkali  source
  • Ultra pure alkali metal release
  • No loose particles
  • High mass portion of alkali metal
  • Controllable metal flow
  • Can be reactivated reliably - multilayers are possible
  • Flexible design for multiple applications
  • Can be used as vapor source or evaporable getter
  • Easy to use
  • Easy to dispose of
 
 

Applications 

  • Night vision tubes
  • Photomultiplier tubes, 1st, 2nd and 3rd generation
  • Image converter tubes
  • X-Ray Image intensifier tubes
  • OLEDs
  • Bose Einstein Condensation
  • Surface studies

We supply all relevant alkali and alkali earth metals, including isotopes such as K40. 
 
Please find further information in our ALVASOURCE® Folder.
 
 
 

 

 
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